y2024d16p2 not done

Cargo.lock

@@ -11,6 +11,31 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "crossbeam-deque"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9dd111b7b7f7d55b72c0a6ae361660ee5853c9af73f70c3c2ef6858b950e2e51"
+dependencies = [
+ "crossbeam-epoch",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-epoch"
+version = "0.9.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b82ac4a3c2ca9c3460964f020e1402edd5753411d7737aa39c3714ad1b5420e"
+dependencies = [
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0a5c400df2834b80a4c3327b3aad3a4c4cd4de0629063962b03235697506a28"
+
 [[package]]
 name = "either"
 version = "1.13.0"
@@ -42,6 +67,26 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
+name = "rayon"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b418a60154510ca1a002a752ca9714984e21e4241e804d32555251faf8b78ffa"
+dependencies = [
+ "either",
+ "rayon-core",
+]
+
+[[package]]
+name = "rayon-core"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1465873a3dfdaa8ae7cb14b4383657caab0b3e8a0aa9ae8e04b044854c8dfce2"
+dependencies = [
+ "crossbeam-deque",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "regex"
 version = "1.11.1"
@@ -88,7 +133,9 @@ dependencies = [
 name = "y2016"
 version = "0.1.0"
 dependencies = [
+ "itertools",
  "md5",
+ "utils",
 ]
 
 [[package]]
@@ -114,6 +161,9 @@ version = "0.1.0"
 [[package]]
 name = "y2022"
 version = "0.1.0"
+dependencies = [
+ "utils",
+]
 
 [[package]]
 name = "y2023"
@@ -124,6 +174,7 @@ name = "y2024"
 version = "0.1.0"
 dependencies = [
  "itertools",
+ "rayon",
  "regex",
  "utils",
 ]

Cargo.toml

@@ -23,3 +23,4 @@ utils = { path = "../utils" }
 itertools = "0.13.0"
 regex = "1.11.1"
 md5 = "0.7.0"
+rayon = "1.10"

template/bin/d.rs.tmpl

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y{{YEAR}}::days::d{{DAY}};
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d1.rs

@@ -1,20 +1,27 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d1;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {
     let root = env!("CARGO_MANIFEST_DIR");
     let content = fs::read_to_string(format!("{root}/resources/1_input.txt")).unwrap();
-    println!("{}", d1::process_part1(&content));
+    println!("Answer: {}", d1::process_part1(&content));
 }
 
 fn part2() {
     let root = env!("CARGO_MANIFEST_DIR");
     let content = fs::read_to_string(format!("{root}/resources/1_input.txt")).unwrap();
-    println!("{}", d1::process_part2(&content));
+    println!("Answer: {}", d1::process_part2(&content));
 }

y2015/src/bin/d10.rs

@@ -1,8 +1,17 @@
+use std::time::Instant;
+
+use utils::time::get_elapsed_string;
 use y2015::days::d10;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d11.rs

@@ -1,8 +1,17 @@
+use std::time::Instant;
+
+use utils::time::get_elapsed_string;
 use y2015::days::d11;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d12.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d12;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d13.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d13;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d14.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d14;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d15.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d15;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d16.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d16;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d17.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d17;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d18.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d18;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d19.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d19;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d2.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d2;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d20.rs

@@ -1,8 +1,17 @@
+use std::time::Instant;
+
+use utils::time::get_elapsed_string;
 use y2015::days::d20;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d21.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d21;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d22.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d22;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d23.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d23;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d24.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d24;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d25.rs

@@ -1,7 +1,13 @@
+use std::time::Instant;
+
+use utils::time::get_elapsed_string;
 use y2015::days::d25;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d3.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d3;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d4.rs

@@ -1,10 +1,17 @@
 use std::time::Instant;
 
+use utils::time::get_elapsed_string;
 use y2015::days::d4;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d5.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d5;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d6.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d6;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d7.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d7;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d8.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d8;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2015/src/bin/d9.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2015::days::d9;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2016/Cargo.toml

@@ -5,3 +5,5 @@ edition = "2021"
 
 [dependencies]
 md5 = { workspace = true }
+utils = { workspace = true }
+itertools = { workspace = true }

y2016/resources/8_input.txt

@@ -0,0 +1,162 @@
+rect 1x1
+rotate row y=0 by 6
+rect 1x1
+rotate row y=0 by 3
+rect 1x1
+rotate row y=0 by 5
+rect 1x1
+rotate row y=0 by 4
+rect 2x1
+rotate row y=0 by 5
+rect 2x1
+rotate row y=0 by 2
+rect 1x1
+rotate row y=0 by 5
+rect 4x1
+rotate row y=0 by 2
+rect 1x1
+rotate row y=0 by 3
+rect 1x1
+rotate row y=0 by 3
+rect 1x1
+rotate row y=0 by 2
+rect 1x1
+rotate row y=0 by 6
+rect 4x1
+rotate row y=0 by 4
+rotate column x=0 by 1
+rect 3x1
+rotate row y=0 by 6
+rotate column x=0 by 1
+rect 4x1
+rotate column x=10 by 1
+rotate row y=2 by 16
+rotate row y=0 by 8
+rotate column x=5 by 1
+rotate column x=0 by 1
+rect 7x1
+rotate column x=37 by 1
+rotate column x=21 by 2
+rotate column x=15 by 1
+rotate column x=11 by 2
+rotate row y=2 by 39
+rotate row y=0 by 36
+rotate column x=33 by 2
+rotate column x=32 by 1
+rotate column x=28 by 2
+rotate column x=27 by 1
+rotate column x=25 by 1
+rotate column x=22 by 1
+rotate column x=21 by 2
+rotate column x=20 by 3
+rotate column x=18 by 1
+rotate column x=15 by 2
+rotate column x=12 by 1
+rotate column x=10 by 1
+rotate column x=6 by 2
+rotate column x=5 by 1
+rotate column x=2 by 1
+rotate column x=0 by 1
+rect 35x1
+rotate column x=45 by 1
+rotate row y=1 by 28
+rotate column x=38 by 2
+rotate column x=33 by 1
+rotate column x=28 by 1
+rotate column x=23 by 1
+rotate column x=18 by 1
+rotate column x=13 by 2
+rotate column x=8 by 1
+rotate column x=3 by 1
+rotate row y=3 by 2
+rotate row y=2 by 2
+rotate row y=1 by 5
+rotate row y=0 by 1
+rect 1x5
+rotate column x=43 by 1
+rotate column x=31 by 1
+rotate row y=4 by 35
+rotate row y=3 by 20
+rotate row y=1 by 27
+rotate row y=0 by 20
+rotate column x=17 by 1
+rotate column x=15 by 1
+rotate column x=12 by 1
+rotate column x=11 by 2
+rotate column x=10 by 1
+rotate column x=8 by 1
+rotate column x=7 by 1
+rotate column x=5 by 1
+rotate column x=3 by 2
+rotate column x=2 by 1
+rotate column x=0 by 1
+rect 19x1
+rotate column x=20 by 3
+rotate column x=14 by 1
+rotate column x=9 by 1
+rotate row y=4 by 15
+rotate row y=3 by 13
+rotate row y=2 by 15
+rotate row y=1 by 18
+rotate row y=0 by 15
+rotate column x=13 by 1
+rotate column x=12 by 1
+rotate column x=11 by 3
+rotate column x=10 by 1
+rotate column x=8 by 1
+rotate column x=7 by 1
+rotate column x=6 by 1
+rotate column x=5 by 1
+rotate column x=3 by 2
+rotate column x=2 by 1
+rotate column x=1 by 1
+rotate column x=0 by 1
+rect 14x1
+rotate row y=3 by 47
+rotate column x=19 by 3
+rotate column x=9 by 3
+rotate column x=4 by 3
+rotate row y=5 by 5
+rotate row y=4 by 5
+rotate row y=3 by 8
+rotate row y=1 by 5
+rotate column x=3 by 2
+rotate column x=2 by 3
+rotate column x=1 by 2
+rotate column x=0 by 2
+rect 4x2
+rotate column x=35 by 5
+rotate column x=20 by 3
+rotate column x=10 by 5
+rotate column x=3 by 2
+rotate row y=5 by 20
+rotate row y=3 by 30
+rotate row y=2 by 45
+rotate row y=1 by 30
+rotate column x=48 by 5
+rotate column x=47 by 5
+rotate column x=46 by 3
+rotate column x=45 by 4
+rotate column x=43 by 5
+rotate column x=42 by 5
+rotate column x=41 by 5
+rotate column x=38 by 1
+rotate column x=37 by 5
+rotate column x=36 by 5
+rotate column x=35 by 1
+rotate column x=33 by 1
+rotate column x=32 by 5
+rotate column x=31 by 5
+rotate column x=28 by 5
+rotate column x=27 by 5
+rotate column x=26 by 5
+rotate column x=17 by 5
+rotate column x=16 by 5
+rotate column x=15 by 4
+rotate column x=13 by 1
+rotate column x=12 by 5
+rotate column x=11 by 5
+rotate column x=10 by 1
+rotate column x=8 by 1
+rotate column x=2 by 5
+rotate column x=1 by 5

y2016/src/bin/d1.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2016::days::d1;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2016/src/bin/d2.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2016::days::d2;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2016/src/bin/d3.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2016::days::d3;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2016/src/bin/d4.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2016::days::d4;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2016/src/bin/d5.rs

@@ -1,8 +1,17 @@
+use std::time::Instant;
+
+use utils::time::get_elapsed_string;
 use y2016::days::d5;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2016/src/bin/d6.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2016::days::d6;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2016/src/bin/d7.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2016::days::d7;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/7_input.txt")).unwrap();
+    println!("{}", d7::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/7_input.txt")).unwrap();
+    println!("{}", d7::process_part2(&content));
+}

y2016/src/bin/d8.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2016::days::d8;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/8_input.txt")).unwrap();
+    println!("{}", d8::process_part1(&content, (50, 6)));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/8_input.txt")).unwrap();
+    println!("{}", d8::process_part2(&content));
+}

y2016/src/days/d7.rs

@@ -0,0 +1,163 @@
+pub fn process_part1(input: &str) -> u32 {
+    input
+        .lines()
+        .map(|line| if is_tls(line) { 1 } else { 0 })
+        .sum()
+}
+
+pub fn process_part2(input: &str) -> u32 {
+    input
+        .lines()
+        .map(|line| if is_ssl(line) { 1 } else { 0 })
+        .sum()
+}
+
+fn is_tls(ipv7: &str) -> bool {
+    let mut abba = false;
+    let mut part = String::new();
+    for chara in ipv7.chars() {
+        if chara == '[' {
+            if contains_abba(&part) {
+                abba = true;
+            }
+            part.clear();
+        } else if chara == ']' {
+            if contains_abba(&part) {
+                return false;
+            }
+            part.clear();
+        } else {
+            part.push(chara);
+        }
+    }
+    if contains_abba(&part) {
+        abba = true;
+    }
+    abba
+}
+
+fn contains_abba(part: &str) -> bool {
+    if part.len() < 4 {
+        return false;
+    }
+    for window in part.chars().collect::<Vec<char>>().windows(4) {
+        if window[0] == window[3] && window[1] == window[2] && window[0] != window[1] {
+            return true;
+        }
+    }
+    false
+}
+
+fn is_ssl(ipv7: &str) -> bool {
+    let mut abas = Vec::new();
+    let mut babs = Vec::new();
+    let mut part = String::new();
+    for chara in ipv7.chars() {
+        if chara == '[' {
+            if let Some(additional_aba) = get_aba_or_bab(&part) {
+                abas.extend_from_slice(&additional_aba);
+            }
+            part.clear();
+        } else if chara == ']' {
+            if let Some(additional_bab) = get_aba_or_bab(&part) {
+                babs.extend_from_slice(&additional_bab);
+            }
+            part.clear();
+        } else {
+            part.push(chara);
+        }
+    }
+    if let Some(additional_aba) = get_aba_or_bab(&part) {
+        abas.extend_from_slice(&additional_aba);
+    }
+    for aba in abas {
+        for bab in babs.iter() {
+            let aba = aba.chars().collect::<Vec<char>>();
+            let bab = bab.chars().collect::<Vec<char>>();
+            if aba[0] == bab[1] && aba[1] == bab[0] {
+                return true;
+            }
+        }
+    }
+    false
+}
+
+fn get_aba_or_bab(part: &str) -> Option<Vec<String>> {
+    if part.len() < 3 {
+        return None;
+    }
+    let mut aba_bab: Vec<String> = Vec::new();
+    for window in part.chars().collect::<Vec<char>>().windows(3) {
+        if window[0] == window[2] {
+            aba_bab.push(window.iter().collect());
+        }
+    }
+    if aba_bab.is_empty() {
+        None
+    } else {
+        Some(aba_bab)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT_1: &str = "abba[mnop]qrst";
+    const INPUT_2: &str = "abcd[bddb]xyyx";
+    const INPUT_3: &str = "aaaa[qwer]tyui";
+    const INPUT_4: &str = "ioxxoj[asdfgh]zxcvbn";
+
+    #[test]
+    fn part1_1() {
+        let result = is_tls(INPUT_1);
+        assert!(result);
+    }
+
+    #[test]
+    fn part1_2() {
+        let result = is_tls(INPUT_2);
+        assert!(!result);
+    }
+
+    #[test]
+    fn part1_3() {
+        let result = is_tls(INPUT_3);
+        assert!(!result);
+    }
+
+    #[test]
+    fn part1_4() {
+        let result = is_tls(INPUT_4);
+        assert!(result);
+    }
+
+    const INPUT_5: &str = "aba[bab]xyz";
+    const INPUT_6: &str = "xyx[xyx]xyx";
+    const INPUT_7: &str = "aaa[kek]eke";
+    const INPUT_8: &str = "zazbz[bzb]cdb";
+
+    #[test]
+    fn part2_1() {
+        let result = is_ssl(INPUT_5);
+        assert!(result);
+    }
+
+    #[test]
+    fn part2_2() {
+        let result = is_ssl(INPUT_6);
+        assert!(!result);
+    }
+
+    #[test]
+    fn part2_3() {
+        let result = is_ssl(INPUT_7);
+        assert!(result);
+    }
+
+    #[test]
+    fn part2_4() {
+        let result = is_ssl(INPUT_8);
+        assert!(result);
+    }
+}

y2016/src/days/d8.rs

@@ -0,0 +1,100 @@
+use itertools::Itertools;
+
+enum Instruction {
+    Rect(u32, u32),
+    ShiftRight(u32, u32),
+    ShiftDown(u32, u32),
+}
+
+pub fn process_part1(input: &str, grid_size: (usize, usize)) -> i32 {
+    let instructions = input
+        .lines()
+        .map(parse_instruction)
+        .map(|option| option.unwrap())
+        .collect_vec();
+    let mut grid = vec![vec!['.'; grid_size.0]; grid_size.1];
+    for instrution in instructions {
+        match instrution {
+            Instruction::Rect(width, height) => {
+                for row in 0..=height {
+                    for col in 0..=width {
+                        grid[row as usize][col as usize] = '#';
+                    }
+                }
+            }
+            Instruction::ShiftRight(row, by) => grid[row as usize].rotate_right(by as usize),
+            Instruction::ShiftDown(col, by) => {
+                let mut col_items = grid.iter().map(|row| row[col as usize]).collect_vec();
+                col_items.rotate_right(by as usize);
+                for (row, pixel) in col_items.iter().enumerate() {
+                    grid[row][col as usize] = *pixel;
+                }
+            }
+        }
+        for row in grid.clone() {
+            println!("{}", row.iter().join(""));
+        }
+        println!();
+    }
+    grid.iter()
+        .map(|row| {
+            row.iter()
+                .map(|pixel| if *pixel == '#' { 1 } else { 0 })
+                .sum::<i32>()
+        })
+        .sum()
+}
+
+pub fn process_part2(_input: &str) -> i32 {
+    0
+}
+
+fn parse_instruction(inst: &str) -> Option<Instruction> {
+    if inst.contains("rect") {
+        let (_, axb) = inst.split_once(" ").unwrap();
+        let (a, b) = axb.split_once("x").unwrap();
+        return Some(Instruction::Rect(
+            a.parse::<u32>().unwrap() - 1,
+            b.parse::<u32>().unwrap() - 1,
+        ));
+    }
+    if inst.contains("rotate row y") {
+        let (_, abyb) = inst.split_once("=").unwrap();
+        let (a, b) = abyb.split_once(" by ").unwrap();
+        return Some(Instruction::ShiftRight(
+            a.parse().unwrap(),
+            b.parse().unwrap(),
+        ));
+    }
+    if inst.contains("rotate column x") {
+        let (_, abyb) = inst.split_once("=").unwrap();
+        let (a, b) = abyb.split_once(" by ").unwrap();
+        return Some(Instruction::ShiftDown(
+            a.parse().unwrap(),
+            b.parse().unwrap(),
+        ));
+    }
+    None
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT: &str = "rect 3x2
+rotate column x=1 by 1
+rotate row y=0 by 4
+rotate column x=1 by 1";
+
+    #[test]
+    fn part1() {
+        let result = process_part1(INPUT, (7, 3));
+        assert_eq!(result, 6);
+    }
+
+    #[test]
+    fn part2() {
+        let result = process_part2(INPUT);
+        assert_eq!(result, 0);
+    }
+}

y2016/src/days/mod.rs

@@ -9,3 +9,7 @@ pub mod d4;
 pub mod d5;
 
 pub mod d6;
+
+pub mod d7;
+
+pub mod d8;

y2022/Cargo.toml

@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+utils = { workspace = true }

y2022/src/bin/d1.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d1;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2022/src/bin/d2.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d2::{process_part1, process_part2};
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2022/src/bin/d3.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d3;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2022/src/bin/d4.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d4;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2022/src/bin/d5.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d5;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2022/src/bin/d6.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d6;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2022/src/bin/d7.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d7;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2022/src/bin/d8.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d8;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2022/src/bin/d9.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2022::days::d9;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/Cargo.toml

@@ -7,3 +7,4 @@ edition = "2021"
 regex = "1.11.1"
 utils = { workspace = true }
 itertools = { workspace = true }
+rayon = { workspace = true }

y2024/resources/11_input.txt

@@ -0,0 +1 @@
+5 62914 65 972 0 805922 6521 1639064

y2024/resources/12_input.txt

@@ -0,0 +1,140 @@
+CCCCCCCCCBBBMMGGGGGGGGGGGGGYWWWWWWWWWWWWOOOOOOOOOOOOOOOOHLLHHHHHHHHHHTHUUUULBBBBBBBBBBBBPPPPPPPPPPPKKWWWWCCCWWWWWWWWWWWWWWWWWWWWEEEEYNNNYYLL
+CCCCCCCCCBBBBBBGGGGGGGGGGGGGWWWWWWWWWWWWOOOOOOOOOOOOOOOOHHHHHHHHHHHHHHHHUUULBBBBBBBBBBBPPPPPPPPPPPPPPPWWWCCCWWWWWWWWWWWWWWWWWWWBEEEYYYNYYLLL
+CCCCCCCBBBBBBBBGGGGGGGGGGGGWWWWWWWWWWWWWOAOOOOOOOOOOOOOOHHHHHHHHHHHHHHHHUUULLLLLBBBBBBBBPSPPPPPPPPPPPMMWWCCCCCCCWWWWWWWWWWWBWWWBBBBYYYYYYYLL
+CCCCCCCCBBBBBBBGGGGGGGGAAGWWWWWWWWWWWWWWWWOOOOOOOOOOOIOOHHHHHHHHHHHHHHHHUUULLLLLLLBBBJBJSSPPPPPPPPPPMMMMMCCCCCCCWWWWWWWWWBBBBBWBBBBYYYYYYYYY
+CCCCCCCCCBBBBBBGGGGGGGGGAAWPPWWWWWWWWWWWWWOOOOOOOOOIIIOHHHHHHHHHHHHHHHHUULLLLLLLLBBBBJJJSSPPPPPGGGGPEEMCCCCCCCCCCCCCCCBBWWBBBBBBBBBBYYYYYYYY
+CCCCCCCCCBBBBBBBGGGGGGGGAAASSWWWWWWWWWWWWWOOOUOOOIIIIIIIYHHHHHHHHHHHHHHHHHNLLLLLLLBBBBJJJJVPPPPGGGGPEEMCCCCCCCCCCCCCCCBBBBBBBBBBBBBYYYYYYYYY
+CCCNNNCCBBBBBBBBGEGGGGGAAAAASWWWWWWWWWWWWWXOOOOIIIIIIIYYYHHHHHHHHHHHHHHHGGLLLLLLLLLBBJJJJJJPPPPGGGGPMEMCCCCCCCCCCCCCCCBBBBBBBBBBBBBYYYYYYYYY
+CCNNNNNBBBBBBBBBBEBSGGGGGGSSSWWWWWWWWUWXXXXXXOOIVVVIIIIIYHHHYYHHHYYYYHHHGLLLLLLLLLLLLJJJJJPPPPPGGGGPMMMMMMMCCCCCCCCCCBBBBBBBBBBBBYYYYYYYYYYM
+NNNNNNNVVVBBBBBBBBBSGGSSSSSSSSWWWWWWWUWWXXXXXXOVVVIIIIIIYYYYYYYYHYYYYYHHGGLLLLLLLLLLLJJJJJJJPPPGGGGPMMMMMMMCCCCCCCCCCBBBBBBBBBBBBBBYYYYYYMMM
+NNNNNNNVVVBBBBBBBBBSGGSSSSSSSDDWWWWWWWWXXXXXXXOOIIIIISIIYYYYYYYYYYYYDYYGGGLLLLLLLLLLLJJJJJJJPGGGGGGPPPMMMMMCCCCCCCCCCBBBBBBBBBBBBBBYYYYYYMMM
+NNNNFNNNNBNBBBBBBBSSSSSSSSSSSSSSWDWWUUNXXXXXXXXXIIIIISSSSYYYYYYYYYYYYYYGGGLLLLLLLLJJJJJJJJJJGGGGGGGPDMMMMMMCCCCCXWWWWWBBBBBBBBBBBBBYYYYYMMMM
+NNNNNNNNBBBBBBBBBBSSSSSSSSSSSSSSSDDDNUNNNXXXXXXXIIXIISSSYYYYYYYYYYYYYYYGGGGGLLLLLLLJJJJJJJJJGGGGGGGPDDMDMMMXXXXXXXXXWWWWWWBBBBBBBBBYYYYMMMMM
+NNNNNNNBBBBBBBBBBBSSSSSSSSSSSSSSSSNNNNNNNNXXXXXXXXXXXXSSSQQNYYYYYYYYYYGGGGGGLLLLLLLLJJJJJJJDGGGGGGGDDDDDMMDXXXXXXWWWWWWWWBBBBBBBBBHYYYMMMMMM
+NNNNNNAAXXXBBBBXXBBBSSSSSSSSSSSSSENNNNNNNNNNXXXXXXXQXXQQQQQNYYYYYYYYYYYGGGGGGLLLLLLLJJJJJJJDGGGGGGGDDDDDDDDXXXXXWWWWWWWWWWWBBBBBBHHYYYMMMMMM
+NNNNNNNNXXXXXXXXBBBSSSYSSSSSSSSSSNNNNNNNNNNZXXXXXXEQQQQQQQQYYYYYYYYYYYYGGGGGLLLLLLLGJJJJJJJJGGGGGGGDDDDDDXXXXXXXXWWWWWWWWWWBBBBBBHHHYYMMMMMM
+NNNXXNNNXXXXXXXXXXXYYYYYSSSSSSSSIIINNNNNNNNXXCXXXXEQQQQQQQQQYYYYYYYYYYYGGGGGGGGLGLGGJJJJJJJDGGGGGGGDGDDDGGXXXXXXCWWWWWWWWWWWWABOOHHHYMMMMMMM
+SNNSXNNNRXXXXXXXXXXXYYYYYSSSSSSIIIINNNNNNNNXXCCXEEEQQQQQQQQYYYYYYYYYYYYGGGGGGGGGGGGJJJJJJJJUGGGGGGGGGGGGGGGGGGXCCCWCCWWWWWAAAAAOOHHHHMMMMMMM
+SSSSXSNNRXXXXXXXYYYYYEYNYSSSMHSIIIIINNNNNNNNCCCCTTEQYYQQQQQQYYYYYUYYYYYGGGGGGGGGGGJJJJJJJJJJGGGGGGGGGGGGGGGGGGXGCCCCCWWWWWAAAAAHOHHHHMMMMMMM
+SSSSSSNNSJJJXXXYYYYYYYYYMSMMMMGMIMIINNNNNNNCCCCCTTEYYYQYQQQQQQMYUUYUYYGGGGGGGGIIIJJJJJJJJJJUGGGGGGGGGGGGGGGGGGDGCCCCWWWWWWAAAAAHHHHNMMMMMMMM
+SSSSSSSSSSSJXXXYYYYYYYYYMSMMMMMMMMIIINNNNNNCCCCCTTEYYYYYYQQQQBBBUUYYYYYOOOOGGGIIIPJJJJJJJJUUGGGGGGUGGGGGGGGGGGGGCCCCCCAAAAAAAAAHHHHNMMMMMMMM
+SSSSSSSSSSSJJJJYYYYYYYYYYMMMMMMMMMIIIINNNCCCCCCTTTTCYYYYQQQBBBBBBUUYYYYOGOOOOGIIIIIIIJJJJUUUGGGGGGGGGGGGGGGGGGGGCCCHHHAAAAAAAAAHHHHNNMMMMMMM
+SSSSSSSSSSSSSJJJYYYYYYYMMMMMMMMMMMIIIINNNCSCCTTTTTYYYYYYPPQBBBBBBUUUYGYGGOGGGGIIIIIIIJJIIUUUGGGGGGGGGGGGGGGGGGCGGCCCCCAAAAAAAAAHHHNNAAAMMQMM
+SSSSSSSSSSSJJJJJYYYYYYYYMMMMMMMMMIIISISSSSSCCTTTTTYYYYYYPPPPBBBBUUUUUGGGGGGGGGIIIIIIIIJIIUUUGGGGGGGGGGGGGGGGGGCCGCCCCCAAAAAAAAAKKKAKAHAMMQMY
+SSSSSSSSSSSSJJDJJJYYYYYMMMMMMMMMMOOSSSSSSSSSCTETTTTYYYPYPPPPPPBBBBUGUGGGGGGGYYIIIIIIIIIIIUUUGGGGGGGGGMMMGGGGGGCCCCCCCAAAAAAAAAAKKKKKHHAAMQMY
+SSSSSSSSSSSSJJDJJJYYOOMMMMMMMMMOQOFFFFSSSSSCCCCOOYYYYYPSPPPPBPBBBBGGGGGGGYGGYYIIIIIIIIIIUUUUUUUUUUUUUUMMGGGGGCCCCCCCBAAAAAAAAAAAAKKKHHHHHHYY
+SWSSSSSSSSSSJJDJDDYYMOOMMMMMOMOOOOOOSSSSSSSSCCYYYYYYYYPPPPPBBBBBBBIIIIGGGYYYYYYIIIIIIIIIIIIUUUUUUUUUUMMMMMMGKCCKKCCCCAAAAAAAAAAAAKKKHHHHHHYY
+SSSSSSSSSSSSJDDDDDDYMMMMMMMMOOOOMOOOOOSSSSSNCCZZZZYYYYPPPPPBBBBBBBBBBBWYGAAAAAAAIIIIIIIIIIUUUUUUUUUUUMMMMMKKKKCKKCCCBAAAAAAAAAAAAKKHHHHHHYYY
+SSSSSSSJSSSSJDDDDDDMMMMMMMMMMGGOOLOCSSSSSSSSCCZZZZZYYYEEPPPBBBBBBBBBBBBYWAAAAAAAIIIIIIIIIIUUUUUUUUUUUMMMMKKKKKKKCCBBBAAAAAAAAAAAAKHHHHHHPHHY
+SSSSSSSSSYYSDDDDDDDDDDMMMMMMMMMMLLSCCSSSSSSZZZZZZZZZYSPPPPPPBBBBBBBBBBBYYAAAAAAAIIIIIIIIIIUUUUUUUUUUUUUKKKKKKKKKKCCBBAAAAAAAAAAAAHHHHHHHHHHY
+YYSYSSYYYYYDJDDDDDDDDDMMMMMMMMLLLLSSSSSSSSSZZZZZZZZVSSPPPMPBBBBBBBBBBBBYYAAAAAAAIIIIIIIIIIUUUUUUUUUUUKKKKKKKKKKKKBBBBAAAAAAAAAAAAHHHHHHHHHHH
+YYYYSSYYYYYDDDDDDDDDDMMMMMMMMLLLLLSSSSSSSSSSZZZZZVVVSSPPPPBBBBBBBBBBBBYYYAAAAAAABIIIIJJIIIUUUUUURVKKKKKKKKKKKKKKKBBBBAAAAAAAAAAAAHHHHHHHHHHF
+YYYYYYYYYYYDDDDDDDDDMMLMMMMLLLGGLLLLSSSSSSSSZZZZZVVVVSVBPBBBBBBBBAAAAAAAAAAAAAAABIIIIJJJIRRRRRRRRRRRKKKKKKKKKKEKKBBBBAAAAAAAAAAAAHHHHHHHHHHF
+YYSSSYYYYYYDDDDDDDDDDMLLLLLLLLGGGGLLSSLLSSSZZZZZZVVVVVVBBBBBBAAAAAAAAAAAAAAAAAAABBIIRRRRRRRRRLRRRRRRKKKKKKKKKKKKWWWBBAAAAAAAAAAAAHHHHHHHHFFF
+SSSSSSYAAYYYYDDDDDDDDDDLLLLLGGGGGGGLLLLLLSSZZZZZZVVVVVBBBBBBBAAAAAAAAAAAAAABBYYBBRIIRRRRRRRRRRRRRRRKKKKKKKKKKKKKWWWWWAAAABBBBBBBCHHHHHHAAFFF
+SSSSSAAAAYAYYYYDDDDDDDDDDZZZGGGGGGGGGGLLLSSZZZZZZVVVFVBBBBBBBAAAAAAAAAAAAAABBBBBBRRRRRRRRRRRRRRRRRRKKKKKKKKKKKKKWWWWAAAAABAABIBHHHHHHHHAAAFF
+SSSSSAAAAAAAYYYYDDDDDDDDZZZZGGGGGGGGGGGLLSZZZZZZVVVVVBBBBBBBBAAAAAAAAAAAAAABBBBBBBNRRRRRRRRRRRVRRRRRKKKKKKKKKKKWWWWWAAAAAAABBIIIHHHHHAAAAAAA
+SSSAAAAAAAAAAAAZDDDDDDDDZZZZGGGGGGGGGGGLLZZZZZZZZVVVVVBBBBBBBAAAAAAAAAAAAAABBBBBBBBRRRRRRRRRRRVRRRRRRKKRKKKRKKWWWWWWWAAAAAAAIIIIHHHHHMAAAAAA
+SSSAAAAAAAAAAADZKKKDDDDZZZZZGGGGGGGGGGGGLZYKKZKUVVVVVVBBBBBBBAAAAAAAAAAAAAABBBBBBRRRRRRRRRRRRVVVRRRRRRRRRRRRRWWWWWWWAAAAAAAAAIIIIISSAAAAAAAA
+SSSAAAAAAAAAAKKKKKKKDDZZZZZZZGGGGGGGGGGGGGKKKKKUUVVOODOOBBBBBBBBBJJJJJJBBBBBBBBBBBRRRRRRRRRRRVVVRRRRRRRRRRRRWWWWWWWAAAAAAAAAAIIIISSSSAAAAAAA
+SSSAAAAAAAAAAKKKKKKKZZZZZZZZZVGGGGGGGGGGXKKKKKKUVVOOOOOOBBBBBBBJJJJJJJJJJBBBBBBBBBCCRRRRRRRRRVVRRRRRRRRRRRRRWWWWWWWAAAAAAAAAAIIIIIIAAAAAAAAA
+SSSAAAAAHHHHHHHHHHHHHHHHHHZZZVGGGGGGGGGKKKKKKKKUVVOOOOOOCBBBBBBBJJJJJJJJJBBBBBBBBCCRRRRRRRRIRRRRRRRRRRRRRRWWWWWWWWWAAAAAAAAAAIIIIIIAAAAAAAAA
+SSSSAAAAHHHHHHHHHHHHHHHHHHZZZZQQGQQGGGQKKKKKKKKVVVOOOOOOCCBBBBBBJJJJJJJJJJJJJJBCCCCRRRCCCCCIIIRRRRRRRRRRRRWWWWWWWWAAAAAAAAVVIIIIIIIOAAAAAAAA
+SSSSSSAAHHHHHHHHHHHHHHHHHHZZZZZQQQQQQQQQQKKKKKKKOOOOOOOOCCBBBBBJJJJJJJJJJJJJJJBCCCCCCCCCCCIIKKKRRRYRRRRWWWWWWKWWWKKAAAAAAAAIIIIIIIIIHAAAAAAA
+SSSSSSSAABBBBKKKHHHHHHHHHHZZZZZQQQQQQQQQQQKKKKKKOOOOOOOOCCCBBBBJJJJJJJJJJJJJJCBCCCCCCCCCCCCCKKKKKRKRRRRWWWWWWKKKKKKWAAAAAAAIIIIIIIIIHAAAAAAA
+SSSSSSSSABBBBBZZHHHHHHHHHHZCCEECCCCQQQQQQQKKKKKKOOOOOOOOOCBBBBBJJJJJJJJJJJJSCCCCCCCCCCCCCCCCKKKKKKKKKKKKWWWGGKKKKKKWWWAATTIIIIIIIYHHHHAAAAAA
+SSSSSSSSSSSBBBBHHHHHHHHHHHZZCCCCCCCQQCQQQQNKKNOOOOOOOOOOOBBBBBBBBJJJJJJJJJJSSCCCCCCCCCCCCCCCCKKKKKKKKKKMMMGGYYKKKKKWWWWATTIIIINIIYYHYYAAAAAA
+SSSSSSSSSSSSBBBHHHHHHHHHHHKKKCCCCCCCCCQQQNNKKNNOOOOOOOOFFBBBBBBBBJJJJJJJJJJJCCCCCCCCCCCCCKCCKKKKKKKKMMMMMMMGGKKKKKKWWWWTTTTITIIIKYYYYYAAAAJA
+SSSSSSSSSSSSSSBHHHHHHHHHHHHHKCCCCCCCCCNNNNNNNNNNOOOOOOOFFFFBUBHHHHHJJJJAJQQJQCCCDCCCJCKKCKKKKKKKKKKMMMMMMMGGGKKKKKKTTTTTTTTTTTTIKYYYYYAYAAAU
+SSSSSSSSSFFFFBBHHHHHHHHHHHHHHCCCCCCCYCYNNNNNNNNNNNNOOOORRRRRRTZHZZZJJJJJJQQQQCBCCCCCCCKKKKKKKKKKKKKKMMMMKMGGGKKKKKKTTTTTTTTTTTTTTTYYYYYYYAAU
+SSSSSSSSFFFFFBBHHHHHHHHHHHHHHCCCCCYCYYYYYNNNNNNNNNNOONARRRRRZZZZZZZJJJJQQQQQQQCCCCCCCDKKKKKKKMMKKKKKKMMMKMGGGKKKKKKTTTTTTTTTTTTTXTYYYYYYYYYY
+SMSSSSSSJFFFFFBHHHHHHHHHHHHHHHCCCCYYYYYYYYYNNNNNNNNNNNRRRZZZZZZZZZZZZJJQQQQQQQQQCCCCDDKBKKBKMMMKKKKKKMMKKKJGGGGGKKKTTTTTTTTTTTTTTTTTTYYYYYYY
+YJJSSSSJJFGFFFBHHHHHHHHHHHHHHHCCCYYYYYYYYYNNJNNNNNNNNNVRRRRZZZZZZZZZZQQQQQQQQQQQCCCCCGBBBBBBBMAMKKKKKKKKKCGGGGGKKKKTTTTTTTTTTTTTTTTYYYYYYYYW
+YGJJSSSJJJFFJJJHHHHHHHHHHHDLHHHCYYYYYYYYYYYYNNNNNNNNNVVVVRRRZZZZZZZZZQQQQQQQQQQQQQCCCGBBBBGBBMMMKKKKKKKKKCCGGGGKKKKKTTTTTTTTTTTTTTTTYYYYYYYY
+YGJSSJJJJJJJJJJHHHHHHHHHHHLLLLLLYYYYYYYYYYYYNNNNNNNNNNVVVRRRRRZZZZZZZQQQQQRQQQQQQQQCGGGGGBGMMMMMMMKKCKKCCCCCZGGKKKKKTTTTTTTTTTTXTTTTYMMYYYYY
+GGJJJJJJJJJJJJJJJHHHHHHHLLLLLLLLLYYYYYYYYYYYYNNNNNNNNNVVVRRRRRZZZZZZRQQRRQRRQKKQQQQCQGGGGGGMMMMMMKKCCCKCCCCCCGKKKKKKTTTXXXXXTTTXTTMTMMMMMYYY
+GGGGJJJJJJJJJJJJJHHHFHHLLLLLLLLLLYYYYYYYYYYYYNNNNNNNNNNVRRRRRZZZZZZZRRRRRRRRRKKKQQQQQQGGGGGGMMMCMCCCCCCCCCCCCCKKKKKKTTTXXXXXXXXXXXMMMMMMAYYY
+GGGGGJJJJJJJJJJJJHHHHHHLLLLLLLLLLYYYYYYWYYWYYYNNNNNNNNSSSRRRRAAZZZZRRRRRRRRRRKEKKQQQQGGGGGGOOOMCCCCCCCCCCCCCCNNNNNNNNNNNNNNNNNNMMMMMMMMMMYYA
+GGGGGJJGTTTTJJJJJLLLLLLLLLLLLLLLLLLYWYWWWWWYYNNNNNNNNNSSSSRKAAAZZZRRRRRRRRRKKKKKKQQQQQGFGGGOOOICCCCCCCCCCCCCCNNNNNNNNNNNNNNNNNNXMMMMMMMMMMYA
+GGGPPGJGTTTTJTJJJLLLLLLLLLLLLLLLLLYYWWWWWWWWYYYNSNNNNSSSSABAAAAZZRRRRRRRRRRKKKKKNNNNQQFFFFGOOOCCCCCCCCCCCCCCCNNNNNNNNNNNNNNNNNNMMMMMMMMMMMAA
+GGGGGGGGTTTTTTTLLLLHLLLLLLLLLLDLLLLWWWWWWWWWYYYSSNNSSSSSSAAAAAAAAARRRRRRRRRRKKKKKNNNNQQFFOOOOOOCCCCCCCCCCCCJGNNNNNNNNNNNNNNNNNNMMMMMMMMMMMAN
+GGGGGGGGGTTTTTTTTTTHLSLLLLLLLLDLLLXXWWWWWWWWYYYSNNNSSSSSSAAAAAAALLRRRRRRRRRRRKKRNNNNQQRFFOOOOOOCCCCCCCCCCCCJJNNNNNNNNNNNNNNNNNNMMMMMMMMMNDNN
+GGGGGWGGGTTTTTTTFFSSSSSSLLLLLLLLLBWWWWWWWWWWYYYSSSSSSSSSSAAAAAAAAARRRRRRRRRRRRRRNNSSRRRRRRROOOOOOCCCCCCCCJJJJNNNNNNNNNNNNNNNNNNXXXMMMNNNNNNN
+GGGGWWWGGTTTTTTFFSSSSSSSLLLLLLLLKBWWWWWWWWWWYYYYSSSSSSSSBJJAAAAAAARRRRRRRRRRRRNNNNNNOORRRRRROOOOOCCCCCCCJJJJJNNNNNNNNNNQQQQXXXXXXXXXXNNLNNNN
+GGGWWWWTTTTTTTTTTOSSSSSSBLSSHLLLKKJWWWWWWWWWWYYRRSRSRSBBBJJJAAAAAAARRRRRRRRRRRNNNNNNOOOORRRRRRROOOOOOJJJVJJJJJJJNNNQQQQQQQQQXXXXXXXXXNNNNNNQ
+GGGWWWTTTTTTTTKSSSSSSSSSSSSSHLLLKKKWMWWWWWWWWWYRRRRRRBBBBBAAAAEEEAARRRRRRRRRRNNNOOOOOOORRRRRRROOOOOGJJJJJJJJJJJJNNNQQQQQQQQQXXXXXXXNNNNNNNNN
+WWWWWWTTTTTTTTTJSSSSSSSSSSSSSKKKKKKWMWWWWWWWWWYRRRRRBBBBBBAAAAEEEEEEERRRRRRRRRRROOOOORRRRRRRRRROOOGGJHJJJJJJJJJJNNNQQQQQQQQQXXXXXXXNXNNNNNNN
+WWWWWTTTTTTTTTTTSSSSSSSSSSHKKKKKKKUKMWWWWWWWWKKKKRRBBBBBEEEEEEEEEEEEETRRDDRRRRROOOOOORRRRRRRRRROOGGGGJJJJJJJJJJJJJQQQQQQQQQQQQQQXXXXXNNNNNNN
+WWWWWWWTTTTTTTTSSSSSSSSSSSKKKKKKKKKKKWWWWWWWKKKKKRRBBBBBBBBEEEEEEEEETTRRDDRRRRRROOOLOORRRRRRROOOGGGGGJJJJJJJJJJJJCQQQQQQQQQQQQQXXXXNNNNNNNNN
+WWWIWWWTTTTTTTSSSSSSSSSSSSKKKKKKKKKYYWWWWWWWWKKKKLRBEBEEEEEEEEEEEEETFTTTDDDTTTRBLLLLLLRRRRRRROOHGGGGGGJJJJJJJJJJJJWQQQQQQQQQQQQQXXXNNNRNNNNN
+WWIIIWWWTTLTTTSSSSSSSSSSKKKKKKKKKPPYYWWWWWWWWKKKKLLEEEEEEEEVVVVVEEETTTTDDTTTTTTLLLLLLLLRRRRRRHHHGGGGMJJJJJJJJJJJQQQQQQQQQQQQQQQQQQNNNRRNNNNN
+WWIIWWWTTKGTTTSSSSSSSSSKKKKKKKKKPPPPMMMMWWWKKKKLLLLEEEEEEVVVVVVEEEETTTTTTTTTTTTLLLLLLLLRRRIRHHHHGGGGGJJJJJJJJJJQQQQQQQQQQQQQQQQQQQQRRRDDDNNN
+IIIIIWWWWGGGVVSSSSSSSSSSKKKKKKKKPPPPMMMMWWKKKKKKLLLLELEEEVVVVVVEEEEEETTTTTTTXLLLLLLLLLLLLLLHHHHHGGGGGGJJJJJJJJQQQQQLLLQQQQQQQQQQQQQQRRDDMMDD
+IIIIIIWWGGGGGVVVSSSSSSSSKKKKKKKFEPPMMMMMMMKKKKKLLLLLLLEVVVVVVVVEEEEETTTTTTTTLLLLLLLLLLLLLLLHHHHHHHGGGGJJJJJJJJNQQQQQLLQQLLQQQQQQQQQQDDDDDDDD
+IIIIIIGGGGGGGGGVSSSSSSSSSSKKKKKFFPPMMMMMMMKKKSSLLLLLLVVVVVVVVVEEEETETTTTTTTTTLLLLLLLLLLLLLLHHHHHHHGGGGGAJJJJJDQQQQQLLLQLLLLQQQQQQQQQDDDDDDDD
+IIIIIGGGGGGGGZZZGSSSSSSSSSKKKFFFFHPMMMMMMMKSSSSLLLLLLVVTVVVVVVEEEETTTTTTTTTLLLFFFFFFFFFFLLHHHHHHHHGEEGDDDJDDDDQQQQQLLLQQLQQQQQQQQQQQDDDDDDDD
+IIIIIGGGGGGGGZZZTTSSSSSSSSKKKKFFFFPMMMMMMMKKSSSLLLLLLLVVVVVVVEEEEEETTTTTTTTLLLFFFFFFFFFFHHHHHHHHHHGEDDDDDDDDDDQQIQQQQLLLLQQQQQQQQDQQDDDDDDDD
+IIIIIICGGGGGGZZZTTNSSSKKKKKKKFFFFFFMMMMMMMKSSSSSLZLLLLVVVVVVVEEEEEETTTTTTTTLLLFFFFFFFFFFHHHHHIIIHHEEDDDDDDDDDDDTDDQLLLLLTTQQQQQQDDDQDDDDDDDD
+IIIIIIGGGGGGGZZZNNNNKKKKKKKKKKFFFFFMMMMMMMKSSSSSFZLLLLLVVVVPVLLEETTTTTTTTTTQLLFFFFFFFFFFHHHIIIHHHHEEDDDDDDDDDDDDDDLLLLLTTTTTQQQQQDDDDDDDDDDD
+ZZIIIIUGWGGGGZZZNNNNNKKKKKKKKKFFFFBKKKKKKKKSKSSSFZLLLLLLVZVPPLLLETTTTTTTTTTTOOLLLLLLLILIHIIITTTHHHEEDDDDDDDDDDDDDLLLLLLLTTTTTTDQDDDDDDDDDDDX
+ZZIIIUUGWWZZZZZZNNNNNKKKKKKFFFFFFFFKKKKKKKKKKKKZZZZLLLLLVVLLLLLLEETTTTTTTTTOOONNNNNLIIIIIIIIIIIHHEEEEEDDDKKDDDDDDDLLLIIIIIIIIIIQDDDDDDDDDDDD
+ZIIIIUZGGGZZZZZZNNNNKKLKLFFFFFFFFFFKKKKKKKKKKKKKZZZLLLLLLLLLLLLLEETTTSTTTTSSFNNNNNNNIIIIIIIIIIIHEEEEEEEDDKKDDDDDDLLLLIIIIIIIIIIDDDDDHHHHHHNN
+ZIIIZZZZZNZZZZZZNNNNNNLLLLFFFFFFFFFKKKKKKKKKKKKKZZLLLLLLLLLLLLLEEEEETSSTTSSLFNNNNNNNIIIIIIIIIIIHHEEEEEEKKKKDDDDDDLLLLIIIIIIIIIIDDDDDHHHHHHNN
+ZZIZZZZZZNZZZZZZNNNNNNLLLLFFFFFFFFFKKKKKKKKKKHKKGGSLLSLLLLLLLLLLEEESSSSSSSLLFFNNNNNNNPIIIIIIIIIIIEEEEEEEKKLLDLLLDLLLLIIIIIIIIIIDDDDDHHHHHHHN
+ZZZZZZZZNNZZZZZZNNNNNLLLLLLFDFFFFQQKKKKUKKKKKKKKSGSLLSLSSSSLLLLEEEESSSSSLSLLFFFNNNNKQQQIIIIIIIIJIEEEEELLLLLLLLLLLLLKKIIIIIIIIIIDDDDDHHHHHHHH
+ZZZZZZZZZZZZZZZNNNNNNNLLLLLQQQQQQQGKAKKEKKKKEEESSGSSSSSSSSSTLLLJJJESSSSLLLLLLQQQQNNNQQQIIIIIIIIIIEEEEELLLLLLLLLLKKKKKIIIIIIIIIIDDDHHHHHHHHHH
+ZZZZCZZZNNZZZZZNNNNNNNLLLLLQQQQQQQQKAAKEEEEEEEESSSSSSSSSSGZTTTLJJJJSSSSSLLLLLQQQQQNNQQQIIIIIIIIIEEEEEELYLLLLLLLLKKKKIIIIIIIIIIIDHHHHHHHHHHHH
+CCCCCCZZNNZZZZZNNNNNUNNLLLLQOQQQQQQQQAKEEEEEEEEESSSSSSSSEZZTTTJJJJJFSJNNLLLLLQQQQQQQQQQIIIIIIIEEEEEEEELYYLLFFLLLLPPKIIIIIIIIIIIHHHHHHHHHHHHH
+CCCCCCZZNNNNNNNNNNNNLLLLLLLOOOOQQQQQQQKEEEEEEEEESSSSSSSSEZZTTTJJJJJJJJLLLLLLLQQQQQQQQQQIIIIIIIEEEEEEEEYYYLYLLLLLLLLKIIIIIIIIKKHHHHHHHHHHHHHH
+LCCCZZZZZZNNNNNNNNNNNLJRRLLLOOOOOQQQQTTEETEEEEEEESSSSSSEEEZZTTJJJJJJJJJJLLLQQQQQQQQQQQQQIIIHIEEEEEEEEEEEYYYYLLLLLKMKIIIIIIIIKKHHHHHHHHHHHHHH
+LCLLLZLZLNNNNNNNNNRNNRRROOLOOOOOOQQQQTEEETTTTTEEEESSSEEEEZZTTTTJJJJJJJJJLLLLQQQQQQQQQQQQIIIHHHEEEEEEEYYYYYYYYLLZLKKKIIIIIIIISSHHHHHHHHHHHHHH
+LLLLLLLZLNNNNNNNRRRFRRRROOLOOOOQQQQQQTTTTTTTTTEEEEEEEEEEEZZTTTZZJJJJJJJJLLQQQQQQQQQQQQQQQQIHHHHEEYYYYYYYYYJJJJJJJKKKIIIIIIIISSSSHHHHHHHHHHHH
+LLLLLLLLLNLLLLLLRRFFRRRROOLOOOOQQQQDQRTTTTTTTTEEEEEEEZZZZZZTZZZJJJJJJJJLLLQQQQQQQQQQQQQQQQHHHHHNNYYNNNNNNNCJJJJJFKKKIIIIIIIISSSGHHHHHHHHHHHH
+LLLLLLLLNNLLLLLRRFFFFFRRROOOOOOYFQQQQTTTTTTTTEEEEEEEZZZZZZZZZZZZZJJJJJLLKLQQQQQQQMQQQQQQQNHHHHNNNYYYNNNNNNCJJJJJFKKKIIIIIIIISSSGGHHHHHHHHHHM
+LLLLLLLLLLLLLLLFFFFFFFFFFFOOOOOYYAAAATTTTTTTTTEEEEZZOZZZZZZZZZZUZJJJJLLLQQQQQQQQMMQQQNNNNNNNNNNNNYNNNNNNNNCCOCCCFFKKIIIIIIIISSSSSSSSSPXXHMHH
+LLLLLLLLLLLLLLLFFFFFFFOFOOOOOOYYYYYAAATTQTTTQTTQEEZZZZZZZZZZZZZZZJJJJJICCCCCCQQQOMQQQDDNNNNNNNNNNNNNNANNNNCCCCCCFFFFKKKKKKSSSSSSSSSSSPGGHHXX
+LLLLLLLLLLLLLLLFFFFFFFOOOOOOOOOYYYYAAATTQQTTQQQQEEEEEZZZZZZZZZZZZJJJJJJCCCCCCYQQOMDDDDDNNNNNNNNNNNNNNNNNNCCCCCCFFFFFKKKKKKSSSSSSSSRSPPGGXXXX
+SSSLLLLLLLLLLLLFFFFFFFFYOOYYYYYYYYYYAATTQQQQQQQQEEEEEZZZZZZZZZZZZJJJJJCCCCCCCCCCODDBDDDDDNNNNNNNNNNNNNNNNCCCCCCCFFFFFFKKKKKSSSSSSSPPPPGGGNNX
+SSLLLLLLLLLLXXLFXFFFXXXYYYYYYYYYYYYAAAQQQQQQQOQQQEEEEZZZZZZZZZZZYJJYGGCCCCCCCCCCOODDVDDDDINNNNNNNNNNNNNNCCCCZQFFFFFSSFFFFKSSSSSSSSAPPPPGPNNN
+LLLLLLLLLLLLXXLXXXXXXXXYYYYYYYYYYYYYYQQQQQQQQQQQQQEEEEZZZZZZZZBYYYYYGGCCCCCCCCCDDDDDDDDDDNNNNNNNNNNNNNNNNCCCZQFFFFFSSFFFFKSSSSSSSSSPPPPPPNNN
+LLLLLLLLLLLLLXXXXXXXXXXYYYYYYYYYYYYQQQQQQQQQQQQPQQEEEEEFZZLZZZBYYYYYYGCCCCCCCCDDDDDDDDDDDNDNNNNNNNNNNNNNNNCCZQFFFFFSSFFFFSSSSSSSSSSSPPNNPPNN
+QQQYLYYYYLLLJXXXXJXXXXYYYYYYYYYYYYYYQQQQQQQQQQQPPPPPPFFFFFLZZZZYYYYYYYCCCCCCCCCAADADDDDDDDDDNNNNNLNNJJJJCCCCZQQFFFSSSFFFSSSSSSSSSSLLPNNNNNNN
+QQYYYYYWWLLLJJJJJJJXXXYYYXXXXXXXXXYYQQQQQQQQQQQPPPPNFFFFFFLLZZZYYYYYYYCCCCCCCCZAAAADDDDDDDDDDNNNLLLLJJJJJCCCQQQFQSSSSFKFSSSSSSSSSSSPPPNNNNNN
+QQQQYYYYWLLLJJJJJJJJJJSNBXXXNXXXUYYYYIIJJJQQBBBPPPPPFFFFFFFZZDYYYYYYYYZCCZCCZZZAAAADDDDLLLDDDDNLLLLJJJJJJQQQQQQQQSSSSKKKKSSSSSSSHSSHHHNDDNNN
+QQQQYYYYWLLLJJJJJJJJJZNNNNNNNJXXUUUYYYJJJJQQQBPPPPPFFFFFFFFKKYYYYYYKYYZZZZTTTTZZAAAAALLLKLLDLDLLLLJJJJJJJQQQQQQQQSSSSKKKKSSSSSSSHHHHHDDDDNNN
+QQQYYYYYYYJJJJJJJJZZZZNNNNNNNNUUUUUUYJJJJJJJJBBPPPFFFFFFFFFKKKKKYYYKKZZZZZZZZZZZZAAAAALLLLLLLLLLLLLLLJJJQQQQQQQQQSSSSSKKKKKSSSSSSHHHHDDDDNNN
+YYYYYYYYYYYJJJJJJJJZZNNNNNNNNUUJJJJJJJJJJJJJJJJBFFFFFFFFFFFFKKKKKKKKKZZZZZZZZZZZAAAAAAAGLLLLLLLLLLLJJJJJJQQQQQQQQSSSSSSKKKKKSSSSTTTTTTTDNNNN
+SYYYYYYYYYYJJJJJJJJZNNNNNNNNNUUUJJJJJJJJJJJJJBBBBBFFFFFGFFFKKKKKKKKKKZZZZZZZZZAAAGGGAGGGLLLLLLLLLLLLJJJQQTQQQQQQQQQSSSKKKKKKKESTTTTTTNNDNNNN
+SCYYYYYYYYYJJJJJJUZZZNNNNNNNNNUUUUJJJJJJJJJJJJBBBBFFFFGGFKKKKKKKKKKZZZZZZZZZZZAAAGYGAGGGGLLLLLLLLLLJJJJQQQQQQQQQQQQSSSSSKKKTTTTTTTTTTNNNNNNN
+SCCYYYYYYJYJJJJJJUUUZNNNNNNNNUUJUUJJJJJJJJJJJLBBBBBGGGGGGKKKKKKKKKKZZZZZZZZZZZAAAGGGAGGGGLLLLLLLLLLLLLJQQQQQQQQQQQQSSSSSKKKTTTTTTTTTTTNNNNNN
+CCCYYYYYJJJJJJJJUUUNZNNNNNNNNNUJJJJJJJJJJJLJJLLLBBBGGGGGGKKKKKKKKKKZZZZZZZZZZAABAGGGGGGGGGGLLLLLLLLLLLQQQQQQQQQQQQQQSSSSKKTTTTTTTTTTTTNNNMNN
+CCCYYYYJJJJJJJUUUUUNNNNNNNNJJJJJJJJJJJJJJJLLLLLLLLBBGGGGGKGKKKKKKKKZZZZZZZZZZZABBBBGGGGGGGGLLLLLLLLLLLQQQQQQQQQQQQQQSSSSKKTTTTTTTTTTTTTMMMNN
+CCCCCYYCJJJJJUUUUUUUNUUNNNNJJJJJJJJJJJJJJLLLLLLLLLLLGGGGGGGKKKKKKKKZZZZZZZZZZZBBBBGGGGGGGGGGGOOLLLLGGGGQQQQQQQQQQQQQSSSKKTTTTTTTTTMMTTTMMMMM
+CCCCZZCCJJJJJUUUUUUUUUUUUUUJJJJJJJJJJJJJZZLLLLLLLLLLFGGGGGGGGGKKKKKZZZZZZZZZZZBBBGGGGGGGGGGGGGLLLGGGGEEEQQQQQQQQQQSQSSSSSTTTTTTTTMMMTTMMMMMM
+CCCCZZZCCCJJUUUUUUUUUUUUUUUJJJJUUJJJJDDJJZZLLLLLLLZZGGGGGGGGGGKKKKKZZZZZZZZZZZBBBBGGGGGGGGGGGGLLGGGGETEEEEQQQQSSSSSSSSSXTTTTTTTMTMMMTTTMMMMM
+CCCCCCCCCCJUUUUUUUUUUUUUUUUUJJJUUUDDDDDJJZZFFLLLFLZZZGGGGGGGGGGKKKKZZZZZZZZZBBBBBBGGGGGGGGGGGGLLLGGEEEEEEEQQJQSSSSUSSSSMMTMMMTTMMMMMTTTMMMMM
+CCCCCCCCCCCUUUUUUUUUUUUUUUUUUJJUUUDDDDDZZZZFFLLLLLLZGGGGGGGGGGGKKKKZZKKKKZZZZBBBBBJBGGGCGGGGGGGLLGGGEEEEEEQQQSSUUUUSSSMMMMMMMMMMMMMMTTMMMMMM
+CCCCCCCCCCCUUUUUUUUUUUUUUUUUUUUUUDDDDDDDZZFFFFLPWWLEGGGGGGGGGGKKKKKKKKKLZZZZZZBBBBJBGCCCCGGGGGGGLGGGEBBEEEEQSSUUUUUSUSSMMMMMMMMMMMMMMMMMMMMM
+CCCCCCCCCCCCUUUUUUUUUUUUUUUUUUUUUUDDDDDZZFFFFPLPWWWEGGGGGGESSSSSSSSSSSLLLLZZBBBBBBBBGGGCCCGGGGGGGGGGGGEEEEEESSUUUUUUUMMMMMNNNNNNNMMMMMMMMMMM
+CCCCCCCCCCCCUUUUUUUUUUUUUUUUUUUUUUDZDDDDZZZZZPPPWWPEEEEEEEESSSSSSSSSSSLLLLLZBBBBBBBBGGCCCXGGGGNNKNGGGAAEEEEEEBBUUUUUMMUMNNNNNNNNNNMMMMMMMMMM
+CCCCCCCCCLLUUUUUUUUUUUUUUUUUUUUUUUUZZZZZZZZPPPPPPPPPEEEEEEESSSSSSSSSSSLLLLLLBBBBBIBBGGCCXXGGNNNNNNGGAAAEAAAENBBUUBUUUUUMMNUNNNNNNMMNMMMBMBBS
+CCYYCCCCCLLLUUUUUUUUUUUUUUUUUUUUUUUZZZZZZZZPPPPPEPPPPEEEEEESSSSSSSSSSSLLLLLBBBBBBBBIIGCCXCCWWWNNZNVGAAAAAAABBBBCBBBUUUUUUNUNNKNNNNNNNMMBBBBB
+YCYYYYYCCLLLUUULUUUUUUUUUUUUUUUUUUUUZZZZZZZPPPPPPPPPPEEEEEKKKSSSSSSSSSLLLLLLBBBBBBIIIIICCCCWWNNNNVVVFAFAAAABBBBBBBBBBBBUUUUUNNNNNNNNNMBBBBBB
+YYYYYYYCLLLLLLLLLUWUUUUUUUUUUUUUUUUUZZZZZZZZPPPPPPPPPEEEEEKKKSSSSSSSSSLLLLLLBBBBBIIIIIIUCFCWWNNNVVVVFFFFAAAABBBBBBBBBBUUUUUUNNNNNNNNABBBBBBB
+YYYYYYCCLLLLLLLCLCCRUUUUUUUUUUXXUUUUZZZZZZPPPPPPPPPPPEEEKKKKKSSSSSSSSSLLLLLLLBBBBBYIIIIIIFFNNNNNVVVFFFFFFFFABBBBBBBBBBBUUUUUNUUNNNNNANNNBBBN
+YYYYYYYYYYPPLLCCCCCCCCUUUUUUUUXXNDNZZZZZZZPPPPPPPPPRREEEEEERASSSSSSSSSLLLLLLLBYBBYYYYYYYIFFNNNNNNVVFFFFFFFFABBBBBBBBBBBBUUUUUUUNNNNNNNNNNNNN
+QYYYYYYYYYPLLLLCCCCCCCCCTTUUUUNNNNNZZZZZZZZPPPPPPPPRNNEEEEEESAAAABBBLLLLLLLLLLYBYYYYYYYYFFKKKKKKKKZFFFFFFFFFBBBBBBBBBBBBUUUUUUUUNNNNNNNNNNNN
+YYYYYYYYPPPPPLLCCCCCCCCCCCAAUUNNNNNZZNNNZPPPPPPPPPPRRREREMESSQAAALLLLLLLLLALAYYYYYYYYYYYFFKKKKKKKKZZFFFFFFFRRRRBBBBBBBBUUUUUUUUUNNNNNNNNNNNN
+EEYYYYYYPPPPPPPCCCCCCCCCCAAAUUNNNNNZZNNNZPPPPPPPPRRRRRRRORRSSQQAAALALLLLLLAAAAYYYYYYYYYNNNKKKKKKKKZZFFFFFFFFRRRBBBBBBBUUUUUUUUUUNNNNNNNNNNNN
+EEYMMPPPPPPPPPPCCCCCCCCCCCCNNNNNNNNNNNNXPPPPPPPPPRRRRRRRRRRRQQQAAAAAALLLLLAAAAYYYYYYYYNNNNKKKKKKKKZZFFFFFFFFRRBBBBBBBBUUUUUUUUUUNNNNNNNNNNNN
+EEYYPPPPPPPPPPGCCCCCCCCCCCDNNNNNNNNNNNNNPPPPPPPPRRRRRRRRRRRYQQQQQQQQALLLAAAAAAAYYYYYNNNNNNKKKKKKKKFFFFFFFFFFFRRRBBBBBRRRUUUUUUUUNNNNNNNNNNNN
+EEENNPPPPPPPPGGCMCCCCCCNNNNNNNNNNNNNNNNNPPPPPPPPRVRVRRRRRRYYYFQQQQQEQQQVAAAAAAAYYYYYYNNNNNKKKKKKKKKKKKFFFFFFFFFBBBCCBRRRRRUUUUUUNNNNNNNNNNNN
+EEEPPPPPPPPPPPPCMCCCCCCNNNNNNNNNNNNNNNNNKPPPPPPPPVRVRRRRRYYYYFQQQQQQQQQQQAAAAAAYYYYYYNNNNNKKKKKKKKKKKKFFFFFFFFFFFFFCRRORRRRUUUUUNANNNNNNNNNN
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y2024/resources/14_input.txt

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y2024/resources/15_input.txt

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+#.#OO..O...O.....O.O#.....##..O.O#.O.O....O....#.#
+#....#..#.....#O.#..O..#......O..O.....OO#..O#.OO#
+#....O.O...#OO...#O.O..O..........OO..#O....O..O##
+#O...#..#.....O.......O.O.O....O.O.O..O.O.#...####
+#.OO........#.#..........#..O....OO#..#O.O.....O.#
+#.#..O.O....OO....#O.......#.O..O.#O.O..OO#......#
+#O...O.....O.OO#...#O.O.O.....O..OOO..O##.O...O..#
+#O...OO.#O#.O..O..O...O.O......O..##............##
+#O.O.#...........OO.....OO...O.O......#O.OO....OO#
+#...OO...OO#.O..O.O...O..OO......O.......O.O.OO..#
+#.#....O..O..O...O.......#...O.#O..O..O.O.O......#
+#O....O......O#.O......##.....#.....O.O.O#O......#
+#.OO.OO..O......OOOO..O#.O...O.O......#.....OO..O#
+#.O......O.O.OO.O..#..O....O.....#....O.#.OO#...O#
+#.O..#....#...O......#.O.....OO.O.....O.....O....#
+#.#..OO.....#.....#O.O.#O......O......OO....OOO.O#
+#..OO.O....O...O.O......O.O.OO...#.....O.......O.#
+#..O..O...#.O.O#........OO....O...O.OO...#.......#
+##################################################
+
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y2024/resources/17_input.txt

@@ -0,0 +1,5 @@
+Register A: 55593699
+Register B: 0
+Register C: 0
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+Program: 2,4,1,3,7,5,0,3,1,5,4,4,5,5,3,0

y2024/resources/19_input.txt

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+###.#.#.#.#.#.###.#.#.#####.#####.#####.#.#.#.#######.#.#.#####.#.#.#.#.#.###.#.#.#.#####.#.###.#.###.#.#####.#########.#.#.#.#.#######.#.###
+#...#.#.#.#.#.#...#.#.#...#.......#...#.#.#.#...#...#.#.#.#...#...#...#.#.###.#.#.#.....#.#.#...#...#.#.....#.#...#...#.#.#.#.#...#.....#...#
+#.###.#.#.#.#.#.###.#.#.#.#########.#.#.#.#.###.#.#.#.#.#.#.#.#########.#.###.#.#.#####.#.#.#.#####.#.#####.#.#.#.#.#.#.#.#.#.###.#.#######.#
+#.#...#...#.#.#.#...#...#...#...#...#.#.#.#...#.#.#.#.#.#...#...#.......#...#.#.#...#...#.#.#.#.....#.#.....#.#.#...#.#.#.#.#...#...#...#...#
+#.#.#######.#.#.#.#########.#.#.#.###.#.#.###.#.#.#.#.#.#######.#.#########.#.#.###.#.###.#.#.#.#####.#.#####.#.#####.#.#.#.###.#####.#.#.###
+#.#...#.....#.#.#.#.........#.#.#...#.#.#.#...#.#.#.#.#.#...#...#...#...#...#.#.#...#.#...#.#.#.#.....#.....#.#.....#.#.#.#...#...#...#.#...#
+#.###.#.#####.#.#.#.#########.#.###.#.#.#.#.###.#.#.#.#.#.#.#.#####.#.#.#.###.#.#.###.#.###.#.#.#.#########.#.#####.#.#.#.###.###.#.###.###.#
+#.....#.......#...#...........#.....#...#...###...#...#...#...#####...#...###...#.....#.....#...#...........#.......#...#.....###...###.....#
+#############################################################################################################################################

y2024/resources/21_input.txt

@@ -0,0 +1,5 @@
+340A
+149A
+582A
+780A
+463A

y2024/src/bin/d1.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d1;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d10.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d10;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d11.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d11;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/11_input.txt")).unwrap();
+    println!("{}", d11::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/11_input.txt")).unwrap();
+    println!("{}", d11::process_part2(&content, 75));
+}

y2024/src/bin/d12.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d12;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/12_input.txt")).unwrap();
+    println!("{}", d12::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/12_input.txt")).unwrap();
+    println!("{}", d12::process_part2(&content));
+}

y2024/src/bin/d13.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d13;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/13_input.txt")).unwrap();
+    println!("{}", d13::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/13_input.txt")).unwrap();
+    println!("{}", d13::process_part2(&content));
+}

y2024/src/bin/d14.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d14;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/14_input.txt")).unwrap();
+    println!("{}", d14::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/14_input.txt")).unwrap();
+    d14::process_part2(&content);
+}

y2024/src/bin/d15.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d15;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/15_input.txt")).unwrap();
+    println!("{}", d15::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/15_input.txt")).unwrap();
+    println!("{}", d15::process_part2(&content));
+}

y2024/src/bin/d16.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d16;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/16_input.txt")).unwrap();
+    println!("{}", d16::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/16_input.txt")).unwrap();
+    println!("{}", d16::process_part2(&content));
+}

y2024/src/bin/d17.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d17;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/17_input.txt")).unwrap();
+    println!("{}", d17::process_part1(&content).0);
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/17_input.txt")).unwrap();
+    println!("{}", d17::process_part2(&content));
+}

y2024/src/bin/d18.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d18;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/18_input.txt")).unwrap();
+    println!("{}", d18::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/18_input.txt")).unwrap();
+    println!("{}", d18::process_part2(&content));
+}

y2024/src/bin/d19.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d19;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/19_input.txt")).unwrap();
+    println!("{}", d19::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/19_input.txt")).unwrap();
+    println!("{}", d19::process_part2(&content));
+}

y2024/src/bin/d2.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d2;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d20.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d20;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/20_input.txt")).unwrap();
+    println!("{}", d20::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/20_input.txt")).unwrap();
+    println!("{}", d20::process_part2(&content));
+}

y2024/src/bin/d21.rs

@@ -0,0 +1,27 @@
+use std::{fs, time::Instant};
+
+use utils::time::get_elapsed_string;
+use y2024::days::d21;
+
+fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
+    part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
+    part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+}
+
+fn part1() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/21_input.txt")).unwrap();
+    println!("{}", d21::process_part1(&content));
+}
+
+fn part2() {
+    let root = env!("CARGO_MANIFEST_DIR");
+    let content = fs::read_to_string(format!("{root}/resources/21_input.txt")).unwrap();
+    println!("{}", d21::process_part2(&content));
+}

y2024/src/bin/d3.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d3;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d4.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d4;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d5.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d5;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d6.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d6;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d7.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d7;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d8.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d8;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/bin/d9.rs

@@ -1,10 +1,17 @@
-use std::fs;
+use std::{fs, time::Instant};
 
+use utils::time::get_elapsed_string;
 use y2024::days::d9;
 
 fn main() {
+    let now = Instant::now();
+    println!("Part 1:");
     part1();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
+    let now = Instant::now();
+    println!("Part 2:");
     part2();
+    println!("Ran in {}", get_elapsed_string(now.elapsed()));
 }
 
 fn part1() {

y2024/src/days/d11.rs

@@ -0,0 +1,155 @@
+use std::collections::HashMap;
+
+use itertools::Itertools;
+
+pub fn process_part1(input: &str) -> u64 {
+    let stones = input
+        .split_whitespace()
+        .map(|stone| stone.parse::<u64>().unwrap())
+        .collect_vec();
+    let mut result = stones;
+    for _ in 0..25 {
+        result = blink(result);
+    }
+    let mut test = HashMap::new();
+    for stone in result.iter() {
+        test.entry(stone)
+            .and_modify(|count| *count += 1)
+            .or_insert(1);
+    }
+    result.len() as u64
+}
+
+pub fn process_part2(input: &str, blinks: u64) -> u64 {
+    let mut stones: HashMap<u64, u64> = HashMap::new();
+    input.split_whitespace().for_each(|stone| {
+        let stone = stone.parse::<u64>().unwrap();
+        stones
+            .entry(stone)
+            .and_modify(|count| *count += 1)
+            .or_insert(1);
+    });
+    let mut stones_after: HashMap<u64, u64> = HashMap::new();
+    for _idx in 0..blinks {
+        for (stone, count) in stones.iter() {
+            if *stone == 0 {
+                stones_after
+                    .entry(1)
+                    .and_modify(|inner_count| *inner_count += count)
+                    .or_insert(*count);
+            } else if (((*stone as f64).log10() + 1.0).floor() as u64) % 2 == 0 {
+                let num_digits = ((*stone as f64).log10() + 1.0).floor() as u64;
+                let digits_per_side = num_digits / 2;
+                let left = stone / 10_u64.pow(digits_per_side as u32);
+                let right = stone % 10_u64.pow(digits_per_side as u32);
+                stones_after
+                    .entry(left)
+                    .and_modify(|inner_count| *inner_count += count)
+                    .or_insert(*count);
+                stones_after
+                    .entry(right)
+                    .and_modify(|inner_count| *inner_count += count)
+                    .or_insert(*count);
+                //stones_after.push(left);
+                //stones_after.push(right);
+            } else {
+                let new_stone = stone * 2024;
+                stones_after
+                    .entry(new_stone)
+                    .and_modify(|inner_count| *inner_count += count)
+                    .or_insert(*count);
+                //stones_after.push(stone * 2024);
+            }
+        }
+        stones = stones_after.clone();
+        stones_after.clear();
+    }
+    stones
+        .into_values()
+        .reduce(|acc, count| acc + count)
+        .unwrap()
+}
+
+fn blink(stones: Vec<u64>) -> Vec<u64> {
+    let mut stones_after = Vec::new();
+    for stone in stones {
+        if stone == 0 {
+            stones_after.push(1);
+            continue;
+        }
+        let num_digits = ((stone as f64).log10() + 1.0).floor() as u64;
+        if num_digits % 2 == 0 {
+            let digits_per_side = num_digits / 2;
+            let left = stone / 10_u64.pow(digits_per_side as u32);
+            let right = stone % 10_u64.pow(digits_per_side as u32);
+            stones_after.push(left);
+            stones_after.push(right);
+        } else {
+            stones_after.push(stone * 2024);
+        }
+    }
+    stones_after
+}
+
+#[cfg(test)]
+mod tests {
+    use itertools::Itertools;
+
+    use super::*;
+
+    const INPUT_1: &str = "0 1 10 99 999";
+    const INPUT_2: &str = "125 17";
+
+    #[test]
+    fn test_blink_1() {
+        let stones = INPUT_1
+            .split_whitespace()
+            .map(|stone| stone.parse::<u64>().unwrap())
+            .collect_vec();
+        let stones = blink(stones);
+        assert_eq!(stones, vec![1, 2024, 1, 0, 9, 9, 2021976]);
+    }
+
+    #[test]
+    fn test_blink_2() {
+        let stones = INPUT_2
+            .split_whitespace()
+            .map(|stone| stone.parse::<u64>().unwrap())
+            .collect_vec();
+        let mut result = stones;
+        for _ in 0..6 {
+            result = blink(result);
+        }
+        assert_eq!(
+            result,
+            vec![
+                2097446912, 14168, 4048, 2, 0, 2, 4, 40, 48, 2024, 40, 48, 80, 96, 2, 8, 6, 7, 6,
+                0, 3, 2
+            ]
+        );
+    }
+
+    #[test]
+    fn part1() {
+        let result = process_part1(INPUT_2);
+        assert_eq!(result, 55312);
+    }
+
+    #[test]
+    fn part2_1() {
+        let result = process_part2(INPUT_1, 1);
+        assert_eq!(result, 7);
+    }
+
+    #[test]
+    fn part2_2() {
+        let result = process_part2(INPUT_2, 6);
+        assert_eq!(result, 22);
+    }
+
+    #[test]
+    fn part2_3() {
+        let result = process_part2(INPUT_2, 25);
+        assert_eq!(result, 55312);
+    }
+}

y2024/src/days/d12.rs

@@ -0,0 +1,348 @@
+use std::{collections::HashMap, fmt::Display};
+
+use itertools::Itertools;
+
+#[derive(Debug)]
+enum Reason {
+    WrongPlotType,
+    AlreadyInRegion,
+    PlotNotNeighbor,
+    WrongRegionType,
+    MergeImpossible,
+}
+
+impl Display for Reason {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let reason_str = match self {
+            Reason::WrongPlotType => "Could not add plot. Wrong plant type!",
+            Reason::AlreadyInRegion => "Could not add plot. Already in region!",
+            Reason::PlotNotNeighbor => "Could not add plot. Not a Neighbor!",
+            Reason::WrongRegionType => "Could not merge regions. Incompatible plant types!",
+            Reason::MergeImpossible => "Could not merge Regions!",
+        };
+        write!(f, "{reason_str}")
+    }
+}
+
+#[derive(Debug, Clone)]
+struct Region {
+    plant: char,
+    plots: Vec<(u32, u32)>,
+}
+
+impl Region {
+    fn add(&mut self, new_plot: (char, (u32, u32))) -> Result<(), Reason> {
+        if new_plot.0 != self.plant {
+            return Err(Reason::WrongPlotType);
+        }
+        let new_plot = new_plot.1;
+        for plot in self.plots.iter() {
+            if (plot.0.abs_diff(new_plot.0) == 1 && plot.1 == new_plot.1)
+                || (plot.1.abs_diff(new_plot.1) == 1 && plot.0 == new_plot.0)
+            {
+                self.plots.push(new_plot);
+                return Ok(());
+            } else if *plot == new_plot {
+                return Err(Reason::AlreadyInRegion);
+            }
+        }
+        Err(Reason::PlotNotNeighbor)
+    }
+
+    fn merge(mut self, other: Self) -> Result<Self, Reason> {
+        if self.plant != other.plant {
+            return Err(Reason::WrongRegionType);
+        }
+        for plot in self.plots.clone() {
+            for other_plot in other.plots.clone().into_iter() {
+                if (plot.0.abs_diff(other_plot.0) == 1 && plot.1 == other_plot.1)
+                    || (plot.1.abs_diff(other_plot.1) == 1 && plot.0 == other_plot.0)
+                {
+                    self.plots = [self.plots, other.plots]
+                        .concat()
+                        .into_iter()
+                        .unique()
+                        .collect_vec();
+                    return Ok(self);
+                }
+            }
+        }
+        Err(Reason::MergeImpossible)
+    }
+
+    fn merge_multiple(regions: Vec<Region>) -> Region {
+        let mut merged_regions = regions[0].clone();
+        for region in regions[1..].iter() {
+            merged_regions = merged_regions.merge(region.clone()).unwrap();
+        }
+        merged_regions
+    }
+
+    fn area(&self) -> u32 {
+        self.plots.len() as u32
+    }
+
+    fn perimeter(&self) -> u32 {
+        let mut num_fence_elements = 0;
+        for plot in self.plots.iter() {
+            if plot.0 == 0 || !self.plots.contains(&(plot.0 - 1, plot.1)) {
+                num_fence_elements += 1;
+            }
+            if plot.1 == 0 || !self.plots.contains(&(plot.0, plot.1 - 1)) {
+                num_fence_elements += 1;
+            }
+            if !self.plots.contains(&(plot.0 + 1, plot.1)) {
+                num_fence_elements += 1;
+            }
+            if !self.plots.contains(&(plot.0, plot.1 + 1)) {
+                num_fence_elements += 1;
+            }
+        }
+        num_fence_elements
+    }
+
+    fn sides(&self) -> u32 {
+        let mut top_sides = HashMap::new();
+        let mut bottom_sides = HashMap::new();
+        let mut left_sides = HashMap::new();
+        let mut right_sides = HashMap::new();
+        for plot in self.plots.iter() {
+            if plot.0 == 0 || !self.plots.contains(&(plot.0 - 1, plot.1)) {
+                left_sides
+                    .entry(plot.0)
+                    .and_modify(|ys: &mut Vec<u32>| ys.push(plot.1))
+                    .or_insert(vec![plot.1]);
+            }
+            if plot.1 == 0 || !self.plots.contains(&(plot.0, plot.1 - 1)) {
+                top_sides
+                    .entry(plot.1)
+                    .and_modify(|xs: &mut Vec<u32>| xs.push(plot.0))
+                    .or_insert(vec![plot.0]);
+            }
+            if !self.plots.contains(&(plot.0, plot.1 + 1)) {
+                bottom_sides
+                    .entry(plot.1)
+                    .and_modify(|xs: &mut Vec<u32>| xs.push(plot.0))
+                    .or_insert(vec![plot.0]);
+            }
+            if !self.plots.contains(&(plot.0 + 1, plot.1)) {
+                right_sides
+                    .entry(plot.0)
+                    .and_modify(|ys: &mut Vec<u32>| ys.push(plot.1))
+                    .or_insert(vec![plot.1]);
+            }
+        }
+        let mut num_top_sides = top_sides.len() as u32;
+        for (_x, ys) in top_sides.iter_mut() {
+            ys.sort();
+            ys.windows(2).for_each(|window| {
+                if window[0].abs_diff(window[1]) != 1 {
+                    num_top_sides += 1;
+                }
+            });
+        }
+        let mut num_bottom_sides = bottom_sides.len() as u32;
+        for (_x, ys) in bottom_sides.iter_mut() {
+            ys.sort();
+            ys.windows(2).for_each(|window| {
+                if window[0].abs_diff(window[1]) != 1 {
+                    num_bottom_sides += 1;
+                }
+            });
+        }
+        let mut num_left_sides = left_sides.len() as u32;
+        for (_y, xs) in left_sides.iter_mut() {
+            xs.sort();
+            xs.windows(2).for_each(|window| {
+                if window[0].abs_diff(window[1]) != 1 {
+                    num_left_sides += 1;
+                }
+            });
+        }
+        let mut num_right_sides = right_sides.len() as u32;
+        for (_y, xs) in right_sides.iter_mut() {
+            xs.sort();
+            xs.windows(2).for_each(|window| {
+                if window[0].abs_diff(window[1]) != 1 {
+                    num_right_sides += 1;
+                }
+            });
+        }
+        num_top_sides + num_bottom_sides + num_left_sides + num_right_sides
+    }
+}
+
+pub fn process_part1(input: &str) -> u32 {
+    let mut regions: Vec<Region> = Vec::new();
+
+    input.lines().enumerate().for_each(|(y, line)| {
+        line.chars().enumerate().for_each(|(x, plant)| {
+            let mut added_regions_idx = Vec::new();
+            for (idx, region) in regions.iter_mut().enumerate() {
+                match region.add((plant, (x as u32, y as u32))) {
+                    Ok(_) => added_regions_idx.push(idx),
+                    Err(_) => continue,
+                }
+            }
+            if added_regions_idx.is_empty() {
+                regions.push(Region {
+                    plant,
+                    plots: vec![(x as u32, y as u32)],
+                });
+            } else if added_regions_idx.len() > 1 {
+                let regions_to_merge = regions
+                    .iter()
+                    .enumerate()
+                    .filter(|&(idx, _region)| added_regions_idx.contains(&idx))
+                    .map(|(_, region)| region)
+                    .cloned()
+                    .collect_vec();
+                let merged_region = Region::merge_multiple(regions_to_merge);
+                for idx in added_regions_idx.iter().rev() {
+                    regions.remove(*idx);
+                }
+                regions.push(merged_region);
+            }
+        })
+    });
+    regions
+        .iter()
+        .map(|region| region.perimeter() * region.area())
+        .sum()
+}
+
+pub fn process_part2(input: &str) -> u32 {
+    let mut regions: Vec<Region> = Vec::new();
+
+    input.lines().enumerate().for_each(|(y, line)| {
+        line.chars().enumerate().for_each(|(x, plant)| {
+            let mut added_regions_idx = Vec::new();
+            for (idx, region) in regions.iter_mut().enumerate() {
+                match region.add((plant, (x as u32, y as u32))) {
+                    Ok(_) => added_regions_idx.push(idx),
+                    Err(_) => continue,
+                }
+            }
+            if added_regions_idx.is_empty() {
+                regions.push(Region {
+                    plant,
+                    plots: vec![(x as u32, y as u32)],
+                });
+            } else if added_regions_idx.len() > 1 {
+                let regions_to_merge = regions
+                    .iter()
+                    .enumerate()
+                    .filter(|&(idx, _region)| added_regions_idx.contains(&idx))
+                    .map(|(_, region)| region)
+                    .cloned()
+                    .collect_vec();
+                let merged_region = Region::merge_multiple(regions_to_merge);
+                for idx in added_regions_idx.iter().rev() {
+                    regions.remove(*idx);
+                }
+                regions.push(merged_region);
+            }
+        })
+    });
+    regions
+        .iter()
+        .map(|region| region.sides() * region.area())
+        .sum()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT_1: &str = "AAAA
+BBCD
+BBCC
+EEEC";
+
+    const INPUT_2: &str = "OOOOO
+OXOXO
+OOOOO
+OXOXO
+OOOOO";
+
+    const INPUT_3: &str = "RRRRIICCFF
+RRRRIICCCF
+VVRRRCCFFF
+VVRCCCJFFF
+VVVVCJJCFE
+VVIVCCJJEE
+VVIIICJJEE
+MIIIIIJJEE
+MIIISIJEEE
+MMMISSJEEE";
+
+    const INPUT_CUSTOM: &str = "XOX
+OOO";
+
+    const INPUT_4: &str = "EEEEE
+EXXXX
+EEEEE
+EXXXX
+EEEEE";
+
+    const INPUT_5: &str = "AAAAAA
+AAABBA
+AAABBA
+ABBAAA
+ABBAAA
+AAAAAA";
+
+    #[test]
+    fn part1_1() {
+        let result = process_part1(INPUT_1);
+        assert_eq!(result, 140);
+    }
+
+    #[test]
+    fn part1_2() {
+        let result = process_part1(INPUT_2);
+        assert_eq!(result, 772);
+    }
+
+    #[test]
+    fn part1_3() {
+        let result = process_part1(INPUT_3);
+        assert_eq!(result, 1930);
+    }
+
+    #[test]
+    fn part1_custom() {
+        let result = process_part1(INPUT_CUSTOM);
+        assert_eq!(result, 48);
+    }
+
+    #[test]
+    fn part2_1() {
+        let result = process_part2(INPUT_1);
+        assert_eq!(result, 80);
+    }
+
+    #[test]
+    fn part2_2() {
+        let result = process_part2(INPUT_2);
+        assert_eq!(result, 436);
+    }
+
+    #[test]
+    fn part2_3() {
+        let result = process_part2(INPUT_3);
+        assert_eq!(result, 1206);
+    }
+
+    #[test]
+    fn part2_4() {
+        let result = process_part2(INPUT_4);
+        assert_eq!(result, 236);
+    }
+
+    #[test]
+    fn part2_5() {
+        let result = process_part2(INPUT_5);
+        assert_eq!(result, 368);
+    }
+}

y2024/src/days/d13.rs

@@ -0,0 +1,151 @@
+use core::panic;
+
+#[derive(Debug, Clone, Copy)]
+struct ClawMachine {
+    button_a: (i64, i64),
+    button_b: (i64, i64),
+    prize: (i64, i64),
+}
+
+impl ClawMachine {
+    fn parse(s: &str) -> Self {
+        let mut button_a = (0, 0);
+        let mut button_b = (0, 0);
+        let mut prize = (0, 0);
+        s.lines().for_each(|line| {
+            let (field, coords) = line.split_once(": ").unwrap();
+            if field == "Button A" {
+                let (x, y) = coords.split_once(", ").unwrap();
+                let x: i64 = x.split_once("+").unwrap().1.parse().unwrap();
+                let y: i64 = y.split_once("+").unwrap().1.parse().unwrap();
+                button_a = (x, y);
+            } else if field == "Button B" {
+                let (x, y) = coords.split_once(", ").unwrap();
+                let x: i64 = x.split_once("+").unwrap().1.parse().unwrap();
+                let y: i64 = y.split_once("+").unwrap().1.parse().unwrap();
+                button_b = (x, y);
+            } else if field == "Prize" {
+                let (x, y) = coords.split_once(", ").unwrap();
+                let x: i64 = x.split_once("=").unwrap().1.parse().unwrap();
+                let y: i64 = y.split_once("=").unwrap().1.parse().unwrap();
+                prize = (x, y);
+            } else {
+                panic!("Unknown machine information {line}");
+            }
+        });
+        Self {
+            button_a,
+            button_b,
+            prize,
+        }
+    }
+
+    fn correct(&mut self) {
+        self.prize.0 += 10000000000000;
+        self.prize.1 += 10000000000000;
+    }
+
+    fn parse_all(input: &str) -> Vec<Self> {
+        input.split("\n\n").map(Self::parse).collect()
+    }
+
+    //fn get_moves(&self) -> Option<(i64, i64)> {
+    //    if self.prize.0 % self.button_b.0 == 0
+    //        && self.prize.1 % self.button_b.1 == 0
+    //        && self.prize.0 / self.button_b.0 == self.prize.1 / self.button_b.1
+    //    {
+    //        let b_moves = self.prize.0 / self.button_b.0;
+    //        return Some((0, b_moves));
+    //    }
+
+    //    for b_presses in (1..=100).rev() {
+    //        let after_b_moves = (self.button_b.0 * b_presses, self.button_b.1 * b_presses);
+    //        if after_b_moves.0 < self.prize.0 && after_b_moves.1 < self.prize.1 {
+    //            for a_presses in 1..=100 {
+    //                let after_a_moves = (
+    //                    after_b_moves.0 + a_presses * self.button_a.0,
+    //                    after_b_moves.1 + a_presses * self.button_a.1,
+    //                );
+    //                if after_a_moves == self.prize {
+    //                    return Some((a_presses, b_presses));
+    //                }
+    //            }
+    //        }
+    //    }
+    //    None
+    //}
+}
+
+pub fn process_part1(input: &str) -> i64 {
+    let machines = ClawMachine::parse_all(input);
+    machines
+        .iter()
+        .map(|machine| {
+            let p = machine.prize;
+            let a = machine.button_a;
+            let b = machine.button_b;
+            let bm = (p.1 * a.0 - p.0 * a.1) / (b.1 * a.0 - b.0 * a.1);
+            let am = (p.0 - bm * b.0) / a.0;
+            if p.0 != am * a.0 + bm * b.0 || p.1 != am * a.1 + bm * b.1 {
+                0
+            } else {
+                am * 3 + bm
+            }
+        })
+        .sum()
+}
+
+pub fn process_part2(input: &str) -> i64 {
+    let mut machines = ClawMachine::parse_all(input);
+    for machine in machines.iter_mut() {
+        machine.correct();
+    }
+    machines
+        .iter()
+        .map(|machine| {
+            let p = machine.prize;
+            let a = machine.button_a;
+            let b = machine.button_b;
+            let bm = (p.1 * a.0 - p.0 * a.1) / (b.1 * a.0 - b.0 * a.1);
+            let am = (p.0 - bm * b.0) / a.0;
+            if p.0 != am * a.0 + bm * b.0 || p.1 != am * a.1 + bm * b.1 {
+                0
+            } else {
+                am * 3 + bm
+            }
+        })
+        .sum()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT: &str = "Button A: X+94, Y+34
+Button B: X+22, Y+67
+Prize: X=8400, Y=5400
+
+Button A: X+26, Y+66
+Button B: X+67, Y+21
+Prize: X=12748, Y=12176
+
+Button A: X+17, Y+86
+Button B: X+84, Y+37
+Prize: X=7870, Y=6450
+
+Button A: X+69, Y+23
+Button B: X+27, Y+71
+Prize: X=18641, Y=10279";
+
+    #[test]
+    fn part1() {
+        let result = process_part1(INPUT);
+        assert_eq!(result, 480);
+    }
+
+    #[test]
+    fn part2() {
+        let result = process_part2(INPUT);
+        assert_eq!(result, 0);
+    }
+}

y2024/src/days/d14.rs

@@ -0,0 +1,331 @@
+use std::{collections::HashMap, thread, time::Duration};
+
+use itertools::Itertools;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+struct Robot {
+    position: (i32, i32),
+    velocity: (i32, i32),
+}
+
+impl Robot {
+    fn parse(s: &str) -> Self {
+        let (p, v) = s.split_once(" ").unwrap();
+        let (_, p_x_y) = p.split_once("=").unwrap();
+        let (px, py) = p_x_y.split_once(",").unwrap();
+        let position: (i32, i32) = (px.parse().unwrap(), py.parse().unwrap());
+        let (_, v_x_y) = v.split_once("=").unwrap();
+        let (vx, vy) = v_x_y.split_once(",").unwrap();
+        let velocity: (i32, i32) = (vx.parse().unwrap(), vy.parse().unwrap());
+        Robot { position, velocity }
+    }
+
+    fn walk(&mut self, seconds: i32, grid_size: (i32, i32)) {
+        let movement = (
+            self.velocity.0 * seconds + self.position.0,
+            self.velocity.1 * seconds + self.position.1,
+        );
+        let mut position = (movement.0 % (grid_size.0), movement.1 % (grid_size.1));
+        if position.0 < 0 {
+            position.0 += grid_size.0;
+        }
+        if position.1 < 0 {
+            position.1 += grid_size.1;
+        }
+        self.position = position;
+    }
+
+    fn get_quadrant(&self, grid_size: (i32, i32)) -> i32 {
+        if self.position.0 == (grid_size.0 / 2) || self.position.1 == (grid_size.1 / 2) {
+            return 0;
+        }
+        let top = self.position.1 < grid_size.1 / 2;
+        let left = self.position.0 < grid_size.0 / 2;
+        match (top, left) {
+            (true, true) => 1,
+            (true, false) => 2,
+            (false, true) => 3,
+            (false, false) => 4,
+        }
+    }
+
+    fn print_robots(robots: &Vec<Self>, grid_size: (i32, i32)) {
+        let mut grid = vec![vec![0; grid_size.0 as usize]; grid_size.1 as usize];
+        for robot in robots {
+            let value = grid[robot.position.1 as usize][robot.position.0 as usize];
+            grid[robot.position.1 as usize][robot.position.0 as usize] = value + 1;
+        }
+        for row in grid {
+            for tile in row {
+                if tile == 0 {
+                    print!(".");
+                } else {
+                    print!("{tile}");
+                }
+            }
+            println!();
+        }
+    }
+}
+
+pub fn process_part1(input: &str) -> i32 {
+    let robots = input
+        .lines()
+        .map(|line| {
+            let mut robot = Robot::parse(line);
+            robot.walk(100, (101, 103));
+            robot
+        })
+        .collect_vec();
+    Robot::print_robots(&robots, (101, 103));
+    let mut quadrants = HashMap::new();
+    for robot in robots {
+        let quadrant = robot.get_quadrant((101, 103));
+        quadrants
+            .entry(quadrant)
+            .and_modify(|count| *count += 1)
+            .or_insert(1);
+    }
+    quadrants
+        .iter()
+        .filter(|(quadrant, _)| **quadrant != 0)
+        .map(|(_, count)| count)
+        .product()
+}
+
+pub fn process_part2(input: &str) {
+    let mut robots = input.lines().map(Robot::parse).collect_vec();
+    for seconds in 1..=10000 {
+        for robot in robots.iter_mut() {
+            robot.walk(1, (101, 103));
+        }
+        let mut quadrants = HashMap::new();
+        for robot in robots.iter() {
+            let quadrant = robot.get_quadrant((101, 103));
+            quadrants
+                .entry(quadrant)
+                .and_modify(|count| *count += 1)
+                .or_insert(1);
+        }
+        if quadrants.iter().any(|(_, count)| *count > robots.len() / 3) {
+            Robot::print_robots(&robots, (101, 103));
+            println!("{seconds} secs");
+            let half_sec = Duration::from_millis(1000);
+            thread::sleep(half_sec);
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT: &str = "p=0,4 v=3,-3
+p=6,3 v=-1,-3
+p=10,3 v=-1,2
+p=2,0 v=2,-1
+p=0,0 v=1,3
+p=3,0 v=-2,-2
+p=7,6 v=-1,-3
+p=3,0 v=-1,-2
+p=9,3 v=2,3
+p=7,3 v=-1,2
+p=2,4 v=2,-3
+p=9,5 v=-3,-3";
+
+    #[test]
+    fn part1_1() {
+        let mut robot = Robot {
+            position: (0, 4),
+            velocity: (3, -3),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (3, 5),
+            velocity: (3, -3),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_2() {
+        let mut robot = Robot {
+            position: (6, 3),
+            velocity: (-1, -3),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (5, 4),
+            velocity: (-1, -3),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_3() {
+        let mut robot = Robot {
+            position: (10, 3),
+            velocity: (-1, 2),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (9, 0),
+            velocity: (-1, 2),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_4() {
+        let mut robot = Robot {
+            position: (2, 0),
+            velocity: (2, -1),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (4, 5),
+            velocity: (2, -1),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_5() {
+        let mut robot = Robot {
+            position: (0, 0),
+            velocity: (1, 3),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (1, 6),
+            velocity: (1, 3),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_6() {
+        let mut robot = Robot {
+            position: (3, 0),
+            velocity: (-2, -2),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (1, 3),
+            velocity: (-2, -2),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_7() {
+        let mut robot = Robot {
+            position: (7, 6),
+            velocity: (-1, -3),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (6, 0),
+            velocity: (-1, -3),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_8() {
+        let mut robot = Robot {
+            position: (3, 0),
+            velocity: (-1, -2),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (2, 3),
+            velocity: (-1, -2),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_9() {
+        let mut robot = Robot {
+            position: (9, 3),
+            velocity: (2, 3),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (0, 2),
+            velocity: (2, 3),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_10() {
+        let mut robot = Robot {
+            position: (7, 3),
+            velocity: (-1, 2),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (6, 0),
+            velocity: (-1, 2),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_11() {
+        let mut robot = Robot {
+            position: (2, 4),
+            velocity: (2, -3),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (4, 5),
+            velocity: (2, -3),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1_12() {
+        let mut robot = Robot {
+            position: (9, 5),
+            velocity: (-3, -3),
+        };
+        robot.walk(100, (11, 7));
+        let result = Robot {
+            position: (6, 6),
+            velocity: (-3, -3),
+        };
+        assert_eq!(robot, result);
+    }
+
+    #[test]
+    fn part1() {
+        let robots = INPUT
+            .lines()
+            .map(|line| {
+                let mut robot = Robot::parse(line);
+                robot.walk(100, (11, 7));
+                robot
+            })
+            .collect_vec();
+        Robot::print_robots(&robots, (11, 7));
+        let mut quadrants = HashMap::new();
+        for robot in robots {
+            let quadrant = robot.get_quadrant((11, 7));
+            quadrants
+                .entry(quadrant)
+                .and_modify(|count| *count += 1)
+                .or_insert(1);
+        }
+        println!("{quadrants:?}");
+        let result: i32 = quadrants
+            .iter()
+            .filter(|(quadrant, _)| **quadrant != 0)
+            .map(|(_, count)| count)
+            .product();
+        assert_eq!(result, 12);
+    }
+}

y2024/src/days/d15.rs

@@ -0,0 +1,569 @@
+use std::error::Error;
+
+use itertools::Itertools;
+
+pub fn process_part1(input: &str) -> u32 {
+    let (grid, movements) = input.split_once("\n\n").unwrap();
+    let (mut grid, mut robot) = parse_grid(grid);
+    let movements = parse_movements(movements);
+    for movement in movements {
+        match movement {
+            Movement::Up => move_up(&mut robot, &mut grid),
+            Movement::Down => move_down(&mut robot, &mut grid),
+            Movement::Left => move_left(&mut robot, &mut grid),
+            Movement::Right => move_right(&mut robot, &mut grid),
+        }
+    }
+    log_grid(grid.clone());
+    grid.concat().iter().map(|tile| tile.get_gps()).sum()
+}
+
+pub fn process_part2(input: &str) -> u32 {
+    let (grid, movements) = input.split_once("\n\n").unwrap();
+    let (mut grid, mut robot) = parse_large_grid(grid);
+    let movements = parse_movements(movements);
+    for movement in movements {
+        match movement {
+            Movement::Up => move_up_large(&mut robot, &mut grid),
+            Movement::Down => move_down_large(&mut robot, &mut grid),
+            Movement::Left => move_left_large(&mut robot, &mut grid),
+            Movement::Right => move_right_large(&mut robot, &mut grid),
+        }
+    }
+    log_grid(grid.clone());
+    grid.concat().iter().map(|tile| tile.get_gps()).sum()
+}
+
+fn log_grid(grid: Vec<Vec<GridTile>>) {
+    for row in grid {
+        for tile in row {
+            match tile.entity {
+                GridTileType::Robot => print!("@"),
+                GridTileType::Crate => print!("O"),
+                GridTileType::Wall => print!("#"),
+                GridTileType::Nothing => print!("."),
+                GridTileType::BigCrateLeft => print!("["),
+                GridTileType::BigCrateRight => print!("]"),
+            }
+        }
+        println!();
+    }
+}
+
+fn parse_large_grid(input: &str) -> (Vec<Vec<GridTile>>, GridTile) {
+    let mut grid_entities = Vec::new();
+    let mut robot = GridTile {
+        entity: GridTileType::Robot,
+        ..Default::default()
+    };
+    input.lines().enumerate().for_each(|(yidx, line)| {
+        let mut row_entities = Vec::new();
+        line.chars().enumerate().for_each(|(xidx, chara)| {
+            if let Ok(entity) = GridTileType::from_character(chara) {
+                match entity {
+                    GridTileType::Robot => {
+                        robot.coords = (xidx as u32 * 2, yidx as u32);
+                        row_entities.push(robot);
+                        row_entities.push(GridTile::default());
+                    }
+                    GridTileType::Crate => {
+                        let entity = GridTile {
+                            entity: GridTileType::BigCrateLeft,
+                            coords: (xidx as u32 * 2, yidx as u32),
+                        };
+                        row_entities.push(entity);
+                        let entity = GridTile {
+                            entity: GridTileType::BigCrateRight,
+                            coords: (xidx as u32 * 2 + 1, yidx as u32),
+                        };
+                        row_entities.push(entity);
+                    }
+                    GridTileType::Wall => {
+                        let entity = GridTile {
+                            entity,
+                            coords: (xidx as u32 * 2, yidx as u32),
+                        };
+                        row_entities.push(entity);
+                        let entity = GridTile {
+                            entity: GridTileType::Wall,
+                            coords: (xidx as u32 * 2 + 1, yidx as u32),
+                        };
+                        row_entities.push(entity);
+                    }
+                    GridTileType::Nothing => {
+                        row_entities.push(GridTile::default());
+                        row_entities.push(GridTile::default());
+                    }
+                    GridTileType::BigCrateLeft | GridTileType::BigCrateRight => (),
+                }
+            }
+        });
+        grid_entities.push(row_entities);
+    });
+    (grid_entities, robot)
+}
+
+fn parse_grid(input: &str) -> (Vec<Vec<GridTile>>, GridTile) {
+    let mut grid_entities = Vec::new();
+    let mut robot = GridTile {
+        entity: GridTileType::Robot,
+        ..Default::default()
+    };
+    input.lines().enumerate().for_each(|(yidx, line)| {
+        let mut row_entities = Vec::new();
+        line.chars().enumerate().for_each(|(xidx, chara)| {
+            if let Ok(entity) = GridTileType::from_character(chara) {
+                match entity {
+                    GridTileType::Robot => {
+                        robot.coords = (xidx as u32, yidx as u32);
+                        row_entities.push(robot);
+                    }
+                    GridTileType::Crate | GridTileType::Wall => {
+                        let entity = GridTile {
+                            entity,
+                            coords: (xidx as u32, yidx as u32),
+                        };
+                        row_entities.push(entity);
+                    }
+                    GridTileType::Nothing => row_entities.push(GridTile::default()),
+                    GridTileType::BigCrateLeft | GridTileType::BigCrateRight => (),
+                }
+            }
+        });
+        grid_entities.push(row_entities);
+    });
+    (grid_entities, robot)
+}
+
+fn parse_movements(input: &str) -> Vec<Movement> {
+    input
+        .lines()
+        .map(|line| {
+            line.chars()
+                .map(|chara| Movement::try_from(chara).unwrap())
+                .collect_vec()
+        })
+        .concat()
+}
+
+fn move_up(robot: &mut GridTile, grid: &mut [Vec<GridTile>]) {
+    let (robot_x, robot_y) = robot.coords;
+    let mut moving_tiles = Vec::new();
+    for above in (0..robot_y).rev() {
+        let tile = grid[above as usize][robot_x as usize];
+        match tile.entity {
+            GridTileType::Robot => (),
+            GridTileType::Crate => moving_tiles.push(tile),
+            GridTileType::Wall => return,
+            GridTileType::Nothing => break,
+            GridTileType::BigCrateLeft | GridTileType::BigCrateRight => (),
+        }
+    }
+    for tile in moving_tiles.iter_mut() {
+        tile.coords.1 -= 1;
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = *tile;
+    }
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = GridTile::default();
+    robot.coords.1 -= 1;
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = *robot;
+}
+
+fn move_down(robot: &mut GridTile, grid: &mut [Vec<GridTile>]) {
+    let (robot_x, robot_y) = robot.coords;
+    let height = grid.len();
+    let mut moving_tiles = Vec::new();
+    for below in robot_y..height as u32 {
+        let tile = grid[below as usize][robot_x as usize];
+        match tile.entity {
+            GridTileType::Robot => (),
+            GridTileType::Crate => moving_tiles.push(tile),
+            GridTileType::Wall => return,
+            GridTileType::Nothing => break,
+            GridTileType::BigCrateLeft | GridTileType::BigCrateRight => (),
+        }
+    }
+    for tile in moving_tiles.iter_mut() {
+        tile.coords.1 += 1;
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = *tile;
+    }
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = GridTile::default();
+    robot.coords.1 += 1;
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = *robot;
+}
+
+fn move_left(robot: &mut GridTile, grid: &mut [Vec<GridTile>]) {
+    let (robot_x, robot_y) = robot.coords;
+    let mut moving_tiles = Vec::new();
+    for left in (0..robot_x).rev() {
+        let tile = grid[robot_y as usize][left as usize];
+        match tile.entity {
+            GridTileType::Robot => (),
+            GridTileType::Crate => moving_tiles.push(tile),
+            GridTileType::Wall => return,
+            GridTileType::Nothing => break,
+            GridTileType::BigCrateLeft | GridTileType::BigCrateRight => (),
+        }
+    }
+    for tile in moving_tiles.iter_mut() {
+        tile.coords.0 -= 1;
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = *tile;
+    }
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = GridTile::default();
+    robot.coords.0 -= 1;
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = *robot;
+}
+
+fn move_right(robot: &mut GridTile, grid: &mut [Vec<GridTile>]) {
+    let (robot_x, robot_y) = robot.coords;
+    let mut moving_tiles = Vec::new();
+    let width = grid[0].len();
+    for right in robot_x..width as u32 {
+        let tile = grid[robot_y as usize][right as usize];
+        match tile.entity {
+            GridTileType::Robot => (),
+            GridTileType::Crate => moving_tiles.push(tile),
+            GridTileType::Wall => return,
+            GridTileType::Nothing => break,
+            GridTileType::BigCrateLeft | GridTileType::BigCrateRight => (),
+        }
+    }
+    for tile in moving_tiles.iter_mut() {
+        tile.coords.0 += 1;
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = *tile;
+    }
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = GridTile::default();
+    robot.coords.0 += 1;
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = *robot;
+}
+
+fn get_above(tile: &GridTile, grid: &[Vec<GridTile>]) -> Vec<GridTile> {
+    let (tile_x, tile_y) = tile.coords;
+    let mut above_tiles = Vec::new();
+    let above = grid[tile_y as usize - 1][tile_x as usize];
+    match above.entity {
+        GridTileType::Robot => (),
+        GridTileType::Crate => {
+            above_tiles.push(above);
+            above_tiles.extend_from_slice(&get_above(&above, grid));
+        }
+        GridTileType::BigCrateLeft => {
+            above_tiles.push(above);
+            let right = grid[above.coords.1 as usize][above.coords.0 as usize + 1];
+            above_tiles.push(above);
+            above_tiles.push(right);
+            above_tiles.extend_from_slice(&get_above(&above, grid));
+            above_tiles.extend_from_slice(&get_above(&right, grid));
+        }
+        GridTileType::BigCrateRight => {
+            above_tiles.push(above);
+            let left = grid[above.coords.1 as usize][above.coords.0 as usize - 1];
+            above_tiles.push(above);
+            above_tiles.push(left);
+            above_tiles.extend_from_slice(&get_above(&above, grid));
+            above_tiles.extend_from_slice(&get_above(&left, grid));
+        }
+        GridTileType::Wall => above_tiles.push(above),
+        GridTileType::Nothing => (),
+    }
+    above_tiles
+}
+
+fn get_below(tile: &GridTile, grid: &[Vec<GridTile>]) -> Vec<GridTile> {
+    let (tile_x, tile_y) = tile.coords;
+    let mut below_tiles = Vec::new();
+    let below = grid[tile_y as usize + 1][tile_x as usize];
+    match below.entity {
+        GridTileType::Robot => (),
+        GridTileType::Crate => {
+            below_tiles.push(below);
+            below_tiles.extend_from_slice(&get_below(&below, grid));
+        }
+        GridTileType::BigCrateLeft => {
+            below_tiles.push(below);
+            let right = grid[below.coords.1 as usize][below.coords.0 as usize + 1];
+            below_tiles.push(below);
+            below_tiles.push(right);
+            below_tiles.extend_from_slice(&get_below(&below, grid));
+            below_tiles.extend_from_slice(&get_below(&right, grid));
+        }
+        GridTileType::BigCrateRight => {
+            below_tiles.push(below);
+            let left = grid[below.coords.1 as usize][below.coords.0 as usize - 1];
+            below_tiles.push(below);
+            below_tiles.push(left);
+            below_tiles.extend_from_slice(&get_below(&below, grid));
+            below_tiles.extend_from_slice(&get_below(&left, grid));
+        }
+
+        GridTileType::Wall => below_tiles.push(below),
+        GridTileType::Nothing => (),
+    }
+    below_tiles
+}
+
+fn get_left(tile: &GridTile, grid: &[Vec<GridTile>]) -> Vec<GridTile> {
+    let (tile_x, tile_y) = tile.coords;
+    let mut left_tiles = Vec::new();
+    let left = grid[tile_y as usize][tile_x as usize - 1];
+    match left.entity {
+        GridTileType::Robot => (),
+        GridTileType::Crate | GridTileType::BigCrateLeft | GridTileType::BigCrateRight => {
+            left_tiles.push(left);
+            left_tiles.extend_from_slice(&get_left(&left, grid));
+        }
+
+        GridTileType::Wall => left_tiles.push(left),
+        GridTileType::Nothing => (),
+    }
+    left_tiles
+}
+
+fn get_right(tile: &GridTile, grid: &[Vec<GridTile>]) -> Vec<GridTile> {
+    let (tile_x, tile_y) = tile.coords;
+    let mut right_tiles = Vec::new();
+    let right = grid[tile_y as usize][tile_x as usize + 1];
+    match right.entity {
+        GridTileType::Robot => (),
+        GridTileType::Crate | GridTileType::BigCrateLeft | GridTileType::BigCrateRight => {
+            right_tiles.push(right);
+            right_tiles.extend_from_slice(&get_right(&right, grid));
+        }
+
+        GridTileType::Wall => right_tiles.push(right),
+        GridTileType::Nothing => (),
+    }
+    right_tiles
+}
+
+fn move_up_large(robot: &mut GridTile, grid: &mut [Vec<GridTile>]) {
+    let mut moving_tiles = get_above(robot, grid);
+    if moving_tiles
+        .iter()
+        .map(|tile| tile.entity)
+        .contains(&GridTileType::Wall)
+    {
+        return;
+    }
+    moving_tiles.sort_by(|tile_a, tile_b| tile_a.coords.1.cmp(&tile_b.coords.1));
+    for tile in moving_tiles.iter_mut() {
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = GridTile::default();
+        tile.coords.1 -= 1;
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = *tile;
+    }
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = GridTile::default();
+    robot.coords.1 -= 1;
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = *robot;
+}
+
+fn move_down_large(robot: &mut GridTile, grid: &mut [Vec<GridTile>]) {
+    let mut moving_tiles = get_below(robot, grid);
+    if moving_tiles
+        .iter()
+        .map(|tile| tile.entity)
+        .contains(&GridTileType::Wall)
+    {
+        return;
+    }
+    moving_tiles.sort_by(|tile_a, tile_b| tile_b.coords.1.cmp(&tile_a.coords.1));
+    for tile in moving_tiles.iter_mut() {
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = GridTile::default();
+        tile.coords.1 += 1;
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = *tile;
+    }
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = GridTile::default();
+    robot.coords.1 += 1;
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = *robot;
+}
+
+fn move_left_large(robot: &mut GridTile, grid: &mut [Vec<GridTile>]) {
+    let mut moving_tiles = get_left(robot, grid);
+    if moving_tiles
+        .iter()
+        .map(|tile| tile.entity)
+        .contains(&GridTileType::Wall)
+    {
+        return;
+    }
+    for tile in moving_tiles.iter_mut() {
+        tile.coords.0 -= 1;
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = *tile;
+    }
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = GridTile::default();
+    robot.coords.0 -= 1;
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = *robot;
+}
+
+fn move_right_large(robot: &mut GridTile, grid: &mut [Vec<GridTile>]) {
+    let mut moving_tiles = get_right(robot, grid);
+    if moving_tiles
+        .iter()
+        .map(|tile| tile.entity)
+        .contains(&GridTileType::Wall)
+    {
+        return;
+    }
+    for tile in moving_tiles.iter_mut() {
+        tile.coords.0 += 1;
+        grid[tile.coords.1 as usize][tile.coords.0 as usize] = *tile;
+    }
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = GridTile::default();
+    robot.coords.0 += 1;
+    grid[robot.coords.1 as usize][robot.coords.0 as usize] = *robot;
+}
+
+#[derive(Default, Debug, Clone, Copy, PartialEq, Eq, Hash)]
+enum GridTileType {
+    Robot,
+    Crate,
+    BigCrateLeft,
+    BigCrateRight,
+    Wall,
+    #[default]
+    Nothing,
+}
+
+impl GridTileType {
+    fn from_character(value: char) -> Result<GridTileType, Box<dyn Error>> {
+        match value {
+            '#' => Ok(Self::Wall),
+            'O' => Ok(Self::Crate),
+            '@' => Ok(Self::Robot),
+            '.' => Ok(Self::Nothing),
+            _ => Err(Box::from(format!("{value} is not a valid entity"))),
+        }
+    }
+}
+
+#[derive(Default, Debug, Clone, Copy, PartialEq, Eq, Hash)]
+struct GridTile {
+    entity: GridTileType,
+    coords: (u32, u32),
+}
+
+impl GridTile {
+    fn get_gps(&self) -> u32 {
+        if self.entity == GridTileType::Crate || self.entity == GridTileType::BigCrateLeft {
+            self.coords.0 + self.coords.1 * 100
+        } else {
+            0
+        }
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+enum Movement {
+    Up,
+    Down,
+    Left,
+    Right,
+}
+
+impl TryFrom<char> for Movement {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: char) -> std::result::Result<Movement, Box<dyn Error>> {
+        match value {
+            '^' => Ok(Self::Up),
+            'v' => Ok(Self::Down),
+            '<' => Ok(Self::Left),
+            '>' => Ok(Self::Right),
+            _ => Err(Box::from(format!("{value} is not a valid direction"))),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT_SMALL: &str = "#######
+#...O..
+#......";
+
+    const INPUT_MEDIUM: &str = "########
+#..O.O.#
+##@.O..#
+#...O..#
+#.#.O..#
+#...O..#
+#......#
+########
+
+<^^>>>vv<v>>v<<";
+
+    const INPUT_LARGE: &str = "##########
+#..O..O.O#
+#......O.#
+#.OO..O.O#
+#..O@..O.#
+#O#..O...#
+#O..O..O.#
+#.OO.O.OO#
+#....O...#
+##########
+
+<vv>^<v^>v>^vv^v>v<>v^v<v<^vv<<<^><<><>>v<vvv<>^v^>^<<<><<v<<<v^vv^v>^
+vvv<<^>^v^^><<>>><>^<<><^vv^^<>vvv<>><^^v>^>vv<>v<<<<v<^v>^<^^>>>^<v<v
+><>vv>v^v^<>><>>>><^^>vv>v<^^^>>v^v^<^^>v^^>v^<^v>v<>>v^v^<v>v^^<^^vv<
+<<v<^>>^^^^>>>v^<>vvv^><v<<<>^^^vv^<vvv>^>v<^^^^v<>^>vvvv><>>v^<<^^^^^
+^><^><>>><>^^<<^^v>>><^<v>^<vv>>v>>>^v><>^v><<<<v>>v<v<v>vvv>^<><<>^><
+^>><>^v<><^vvv<^^<><v<<<<<><^v<<<><<<^^<v<^^^><^>>^<v^><<<^>>^v<v^v<v^
+>^>>^v>vv>^<<^v<>><<><<v<<v><>v<^vv<<<>^^v^>^^>>><<^v>>v^v><^^>>^<>vv^
+<><^^>^^^<><vvvvv^v<v<<>^v<v>v<<^><<><<><<<^^<<<^<<>><<><^^^>^^<>^>v<>
+^^>vv<^v^v<vv>^<><v<^v>^^^>>>^^vvv^>vvv<>>>^<^>>>>>^<<^v>^vvv<>^<><<v>
+v^^>>><<^^<>>^v^<v^vv<>v^<<>^<^v^v><^<<<><<^<v><v<>vv>>v><v^<vv<>v^<<^";
+
+    const INPUT_LARGE_BOX_SIMPLE: &str = "#####
+#..O.
+#....";
+
+    const INPUT_LARGE_BOX_FULL: &str = "#######
+#...#.#
+#.....#
+#..OO@#
+#..O..#
+#.....#
+#######
+
+<vv<<^^<<^^";
+
+    #[test]
+    fn part1_small() {
+        let (grid, _) = parse_grid(INPUT_SMALL);
+        let flat_grid = grid.concat();
+        let result: u32 = flat_grid.iter().map(|tile| tile.get_gps()).sum();
+        assert_eq!(result, 104);
+    }
+
+    #[test]
+    fn part1_medium() {
+        let result = process_part1(INPUT_MEDIUM);
+        assert_eq!(result, 2028);
+    }
+
+    #[test]
+    fn part1_large() {
+        let result = process_part1(INPUT_LARGE);
+        assert_eq!(result, 10092);
+    }
+
+    #[test]
+    fn part2_simple() {
+        let (grid, _) = parse_large_grid(INPUT_LARGE_BOX_SIMPLE);
+        let flat_grid = grid.concat();
+        let result: u32 = flat_grid.iter().map(|tile| tile.get_gps()).sum();
+        assert_eq!(result, 106);
+    }
+
+    #[test]
+    fn part2_full() {
+        let result = process_part2(INPUT_LARGE_BOX_FULL);
+        assert_eq!(result, 618);
+    }
+
+    #[test]
+    fn part2_large() {
+        let result = process_part2(INPUT_LARGE);
+        assert_eq!(result, 9021);
+    }
+}

y2024/src/days/d16.rs

@@ -0,0 +1,448 @@
+use std::{collections::HashMap, error::Error};
+
+use itertools::Itertools;
+
+pub fn process_part1(input: &str) -> usize {
+    let mut start = (0, 0);
+    let mut end = (0, 0);
+    let grid = input
+        .lines()
+        .enumerate()
+        .map(|(yidx, row)| {
+            row.chars()
+                .enumerate()
+                .map(|(xidx, chara)| {
+                    let tile = GridTile::try_from(chara).unwrap();
+                    match tile {
+                        GridTile::Wall | GridTile::Path => tile,
+                        GridTile::Start => {
+                            start = (xidx, yidx);
+                            tile
+                        }
+                        GridTile::End => {
+                            end = (xidx, yidx);
+                            tile
+                        }
+                    }
+                })
+                .collect_vec()
+        })
+        .collect_vec();
+    let mut next_paths = vec![Reindeer {
+        coords: start,
+        ..Default::default()
+    }];
+    let mut arrived: Vec<Reindeer> = Vec::new();
+    let mut visited = HashMap::new();
+    let mut iter = 0;
+    while !next_paths.is_empty() {
+        next_paths = next_paths
+            .iter()
+            .map(|reindeer| reindeer.get_all_next_paths(&grid))
+            .collect_vec()
+            .concat();
+        for (idx, reindeer) in next_paths.clone().iter().enumerate().rev() {
+            if let Some(score) = visited.get_mut(&reindeer.coords) {
+                if *score <= reindeer.score {
+                    next_paths.remove(idx);
+                    continue;
+                } else {
+                    *score = reindeer.score;
+                }
+            } else {
+                visited.insert(reindeer.coords, reindeer.score);
+            }
+            if reindeer.state == ReindeerState::Arrived {
+                let arrived_reindeer = next_paths.remove(idx);
+                arrived.push(arrived_reindeer);
+            }
+        }
+        iter += 1;
+    }
+    println!("Iterations to goal {iter}");
+    arrived.iter().map(|reindeer| reindeer.score).min().unwrap()
+}
+
+pub fn process_part2(input: &str) -> usize {
+    let mut start = (0, 0);
+    let mut end = (0, 0);
+    let grid = input
+        .lines()
+        .enumerate()
+        .map(|(yidx, row)| {
+            row.chars()
+                .enumerate()
+                .map(|(xidx, chara)| {
+                    let tile = GridTile::try_from(chara).unwrap();
+                    match tile {
+                        GridTile::Wall | GridTile::Path => tile,
+                        GridTile::Start => {
+                            start = (xidx, yidx);
+                            tile
+                        }
+                        GridTile::End => {
+                            end = (xidx, yidx);
+                            tile
+                        }
+                    }
+                })
+                .collect_vec()
+        })
+        .collect_vec();
+    let mut smallest_score = usize::MAX;
+    let mut visited = HashMap::new();
+    visited.insert((start, Orientation::East), 0);
+    let mut next_paths = vec![Reindeer {
+        coords: start,
+        visited: visited.clone(),
+        ..Default::default()
+    }];
+    let mut arrived: Vec<Reindeer> = Vec::new();
+    while !next_paths.is_empty() {
+        next_paths = next_paths
+            .iter()
+            .map(|reindeer| reindeer.get_all_next_paths(&grid))
+            .collect_vec()
+            .concat();
+        for (idx, reindeer) in next_paths.clone().iter().enumerate().rev() {
+            if reindeer.score > smallest_score
+                || reindeer
+                    .visited
+                    .contains_key(&(reindeer.coords, reindeer.orientation))
+            {
+                next_paths.remove(idx);
+                continue;
+            }
+            next_paths[idx]
+                .visited
+                .insert((reindeer.coords, reindeer.orientation), reindeer.score);
+            if let Some(score) = visited.get_mut(&(reindeer.coords, reindeer.orientation)) {
+                if *score < reindeer.score {
+                    next_paths.remove(idx);
+                    continue;
+                } else {
+                    *score = reindeer.score;
+                }
+            } else {
+                visited.insert((reindeer.coords, reindeer.orientation), reindeer.score);
+            }
+            if reindeer.state == ReindeerState::Arrived && reindeer.score <= smallest_score {
+                smallest_score = reindeer.score;
+                let arrived_reindeer = next_paths.remove(idx);
+                arrived.push(arrived_reindeer);
+            }
+        }
+        arrived.retain(|reindeer| reindeer.score == smallest_score);
+    }
+    let visited = arrived
+        .iter()
+        .map(|reindeer| {
+            reindeer
+                .visited
+                .keys()
+                .map(|(coords, _)| coords)
+                .collect_vec()
+        })
+        .collect_vec()
+        .concat();
+    log_maze(&grid, &arrived);
+    visited.iter().unique().count()
+}
+
+#[derive(Debug, Default, Clone, Copy, Hash, PartialEq, Eq)]
+enum Orientation {
+    #[default]
+    East,
+    West,
+    North,
+    South,
+}
+
+impl Orientation {
+    fn turn_clockwise(&self) -> Self {
+        match self {
+            Orientation::East => Self::South,
+            Orientation::West => Self::North,
+            Orientation::North => Self::East,
+            Orientation::South => Self::West,
+        }
+    }
+
+    fn turn_counterclockwise(&self) -> Self {
+        match self {
+            Orientation::East => Self::North,
+            Orientation::West => Self::South,
+            Orientation::North => Self::West,
+            Orientation::South => Self::East,
+        }
+    }
+}
+
+#[derive(Debug, Default, Clone, Copy, Hash, PartialEq, Eq)]
+enum ReindeerState {
+    #[default]
+    Going,
+    Arrived,
+    Stuck,
+}
+
+#[derive(Debug, Default, Clone, PartialEq, Eq)]
+struct Reindeer {
+    orientation: Orientation,
+    coords: (usize, usize),
+    score: usize,
+    visited: HashMap<((usize, usize), Orientation), usize>,
+    state: ReindeerState,
+}
+
+impl Reindeer {
+    fn get_next(&self, grid: &[Vec<GridTile>]) -> Reindeer {
+        let tile = match self.orientation {
+            Orientation::East => grid[self.coords.1][self.coords.0 + 1],
+            Orientation::West => grid[self.coords.1][self.coords.0 - 1],
+            Orientation::North => grid[self.coords.1 - 1][self.coords.0],
+            Orientation::South => grid[self.coords.1 + 1][self.coords.0],
+        };
+        let coords = match self.orientation {
+            Orientation::East => (self.coords.0 + 1, self.coords.1),
+            Orientation::West => (self.coords.0 - 1, self.coords.1),
+            Orientation::South => (self.coords.0, self.coords.1 + 1),
+            Orientation::North => (self.coords.0, self.coords.1 - 1),
+        };
+        if tile == GridTile::Wall {
+            Reindeer {
+                state: ReindeerState::Stuck,
+                ..self.clone()
+            }
+        } else if tile == GridTile::End {
+            Reindeer {
+                score: self.score + 1,
+                state: ReindeerState::Arrived,
+                coords,
+                ..self.clone()
+            }
+        } else {
+            Reindeer {
+                score: self.score + 1,
+                coords,
+                ..self.clone()
+            }
+        }
+    }
+
+    fn get_right(&self, grid: &[Vec<GridTile>]) -> Reindeer {
+        let tile = match self.orientation {
+            Orientation::East => grid[self.coords.1 + 1][self.coords.0],
+            Orientation::West => grid[self.coords.1 - 1][self.coords.0],
+            Orientation::North => grid[self.coords.1][self.coords.0 + 1],
+            Orientation::South => grid[self.coords.1][self.coords.0 - 1],
+        };
+        let coords = match self.orientation {
+            Orientation::East => (self.coords.0, self.coords.1 + 1),
+            Orientation::West => (self.coords.0, self.coords.1 - 1),
+            Orientation::South => (self.coords.0 - 1, self.coords.1),
+            Orientation::North => (self.coords.0 + 1, self.coords.1),
+        };
+        if tile == GridTile::Wall {
+            Reindeer {
+                state: ReindeerState::Stuck,
+                ..self.clone()
+            }
+        } else if tile == GridTile::End {
+            Reindeer {
+                score: self.score + 1001,
+                state: ReindeerState::Arrived,
+                coords,
+                orientation: self.orientation.turn_clockwise(),
+                ..self.clone()
+            }
+        } else {
+            Reindeer {
+                score: self.score + 1001,
+                orientation: self.orientation.turn_clockwise(),
+                coords,
+                ..self.clone()
+            }
+        }
+    }
+
+    fn get_left(&self, grid: &[Vec<GridTile>]) -> Reindeer {
+        let tile = match self.orientation {
+            Orientation::East => grid[self.coords.1 - 1][self.coords.0],
+            Orientation::West => grid[self.coords.1 + 1][self.coords.0],
+            Orientation::North => grid[self.coords.1][self.coords.0 - 1],
+            Orientation::South => grid[self.coords.1][self.coords.0 + 1],
+        };
+        let coords = match self.orientation {
+            Orientation::East => (self.coords.0, self.coords.1 - 1),
+            Orientation::West => (self.coords.0, self.coords.1 + 1),
+            Orientation::South => (self.coords.0 + 1, self.coords.1),
+            Orientation::North => (self.coords.0 - 1, self.coords.1),
+        };
+        if tile == GridTile::Wall {
+            Reindeer {
+                state: ReindeerState::Stuck,
+                ..self.clone()
+            }
+        } else if tile == GridTile::End {
+            Reindeer {
+                score: self.score + 1001,
+                state: ReindeerState::Arrived,
+                coords,
+                orientation: self.orientation.turn_counterclockwise(),
+                ..self.clone()
+            }
+        } else {
+            Reindeer {
+                score: self.score + 1001,
+                orientation: self.orientation.turn_counterclockwise(),
+                coords,
+                ..self.clone()
+            }
+        }
+    }
+
+    fn get_all_next_paths(&self, grid: &[Vec<GridTile>]) -> Vec<Reindeer> {
+        let next = self.get_next(grid);
+        let right = self.get_right(grid);
+        let left = self.get_left(grid);
+        let mut paths = Vec::new();
+        if next.state != ReindeerState::Stuck {
+            paths.push(next);
+        }
+        if right.state != ReindeerState::Stuck {
+            paths.push(right);
+        }
+        if left.state != ReindeerState::Stuck {
+            paths.push(left);
+        }
+        paths
+    }
+}
+
+#[derive(Debug, Default, Clone, Copy, Hash, PartialEq, Eq)]
+enum GridTile {
+    Wall,
+    #[default]
+    Path,
+    Start,
+    End,
+}
+
+impl TryFrom<char> for GridTile {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: char) -> std::result::Result<GridTile, Box<dyn Error>> {
+        match value {
+            '#' => Ok(Self::Wall),
+            '.' => Ok(Self::Path),
+            'S' => Ok(Self::Start),
+            'E' => Ok(Self::End),
+            _ => Err(Box::from(format!("{value} is not a valid tile"))),
+        }
+    }
+}
+
+fn log_maze(grid: &[Vec<GridTile>], visited: &Vec<Reindeer>) {
+    for (yidx, row) in grid.iter().enumerate() {
+        for (xidx, tile) in row.iter().enumerate() {
+            let contains = {
+                let mut contains = false;
+                for reindeer in visited {
+                    if reindeer
+                        .visited
+                        .contains_key(&((xidx, yidx), Orientation::East))
+                        || reindeer
+                            .visited
+                            .contains_key(&((xidx, yidx), Orientation::West))
+                        || reindeer
+                            .visited
+                            .contains_key(&((xidx, yidx), Orientation::North))
+                        || reindeer
+                            .visited
+                            .contains_key(&((xidx, yidx), Orientation::South))
+                    {
+                        contains = true;
+                        break;
+                    }
+                }
+                contains
+            };
+            if contains && !(*tile == GridTile::Start || *tile == GridTile::End) {
+                print!("O");
+            } else if *tile == GridTile::Wall {
+                print!("#");
+            } else if *tile == GridTile::Path {
+                print!(".");
+            } else if *tile == GridTile::Start {
+                print!("S");
+            } else if *tile == GridTile::End {
+                print!("E");
+            }
+        }
+        println!();
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT_1: &str = "###############
+#.......#....E#
+#.#.###.#.###.#
+#.....#.#...#.#
+#.###.#####.#.#
+#.#.#.......#.#
+#.#.#####.###.#
+#...........#.#
+###.#.#####.#.#
+#...#.....#.#.#
+#.#.#.###.#.#.#
+#.....#...#.#.#
+#.###.#.#.#.#.#
+#S..#.....#...#
+###############";
+
+    const INPUT_2: &str = "#################
+#...#...#...#..E#
+#.#.#.#.#.#.#.#.#
+#.#.#.#...#...#.#
+#.#.#.#.###.#.#.#
+#...#.#.#.....#.#
+#.#.#.#.#.#####.#
+#.#...#.#.#.....#
+#.#.#####.#.###.#
+#.#.#.......#...#
+#.#.###.#####.###
+#.#.#...#.....#.#
+#.#.#.#####.###.#
+#.#.#.........#.#
+#.#.#.#########.#
+#S#.............#
+#################";
+
+    #[test]
+    fn part1_1() {
+        let result = process_part1(INPUT_1);
+        assert_eq!(result, 7036);
+    }
+
+    #[test]
+    fn part1_2() {
+        let result = process_part1(INPUT_2);
+        assert_eq!(result, 11048);
+    }
+
+    #[test]
+    fn part2_1() {
+        let result = process_part2(INPUT_1);
+        assert_eq!(result, 45);
+    }
+
+    #[test]
+    fn part2_2() {
+        let result = process_part2(INPUT_2);
+        assert_eq!(result, 64);
+    }
+}

y2024/src/days/d17.rs

@@ -0,0 +1,308 @@
+use std::{collections::HashMap, error::Error};
+
+use itertools::Itertools;
+
+pub fn process_part1(input: &str) -> (String, HashMap<&str, u64>) {
+    let (registers, program) = input.split_once("\n\n").unwrap();
+    let mut registers = parse_registers(registers);
+    let (_, instructions) = program.split_once(": ").unwrap();
+    let mut out = Vec::new();
+    let instructions = instructions
+        .lines()
+        .map(|line| {
+            line.split(",")
+                .collect_vec()
+                .chunks(2)
+                .map(|chunk| (chunk[0], chunk[1]))
+                .collect_vec()
+        })
+        .collect_vec()
+        .concat();
+
+    let mut instruction_pointer: u64 = 0;
+
+    while let Some((opcode, operand)) = instructions.get(instruction_pointer as usize) {
+        let opcode = OpCodes::try_from(*opcode).unwrap();
+        if let Some((output, skip)) = opcode.exec(operand, &mut registers) {
+            if skip {
+                instruction_pointer = 0;
+            } else {
+                out.push(output);
+                instruction_pointer += 1;
+            }
+        } else {
+            instruction_pointer += 1;
+        }
+    }
+    (out.into_iter().join(","), registers)
+}
+
+pub fn process_part2(input: &str) -> u64 {
+    let (registers, program) = input.split_once("\n\n").unwrap();
+    let mut registers = parse_registers(registers);
+    let (_, instructions) = program.split_once(": ").unwrap();
+    let instructions = instructions
+        .lines()
+        .map(|line| {
+            line.split(",")
+                .collect_vec()
+                .chunks(2)
+                .map(|chunk| (chunk[0], chunk[1]))
+                .collect_vec()
+        })
+        .collect_vec()
+        .concat();
+    let orig = instructions
+        .iter()
+        .map(|(opcode, operand)| {
+            [
+                opcode.parse::<u64>().unwrap(),
+                operand.parse::<u64>().unwrap(),
+            ]
+        })
+        .collect_vec()
+        .concat();
+    let mut a = 0;
+    for idx in 1..=orig.len() {
+        let target = orig[orig.len() - idx..].to_vec();
+
+        let mut new_a = a << 3;
+        loop {
+            registers.insert("A", new_a);
+            let out = exec_program(instructions.clone(), &mut registers);
+            //println!("target {target:?}");
+            //println!("output {out:?}");
+            if out == target {
+                a = new_a;
+                break;
+            }
+            new_a += 1;
+        }
+    }
+    a
+}
+
+fn exec_program(instructions: Vec<(&str, &str)>, registers: &mut HashMap<&str, u64>) -> Vec<u64> {
+    let mut out = Vec::new();
+    let mut instruction_pointer: u64 = 0;
+
+    while let Some((opcode, operand)) = instructions.get(instruction_pointer as usize) {
+        let opcode = OpCodes::try_from(*opcode).unwrap();
+        if let Some((output, skip)) = opcode.exec(operand, registers) {
+            if skip {
+                instruction_pointer = 0;
+            } else {
+                out.push(output);
+                instruction_pointer += 1;
+            }
+        } else {
+            instruction_pointer += 1;
+        }
+    }
+    out
+}
+
+fn parse_registers(input: &str) -> HashMap<&str, u64> {
+    let mut registers = HashMap::new();
+    input.lines().for_each(|line| {
+        let (register, value) = line.split_once(": ").unwrap();
+        let (_, register) = register.split_once(" ").unwrap();
+        let value = value.parse().unwrap();
+        registers.insert(register, value);
+    });
+    registers
+}
+
+#[derive(Debug)]
+enum OpCodes {
+    Adv,
+    Bxl,
+    Bst,
+    Jnz,
+    Bxc,
+    Out,
+    Bdv,
+    Cdv,
+}
+
+impl OpCodes {
+    fn exec(&self, operand: &str, registers: &mut HashMap<&str, u64>) -> Option<(u64, bool)> {
+        let a = *registers.get("A").unwrap();
+        let b = *registers.get("B").unwrap();
+        let c = *registers.get("C").unwrap();
+        let operand: u64 = operand.parse().unwrap();
+        let combo = if operand <= 3 {
+            operand
+        } else if operand == 4 {
+            a
+        } else if operand == 5 {
+            b
+        } else if operand == 6 {
+            c
+        } else {
+            0
+        };
+        match self {
+            OpCodes::Adv => {
+                //println!(
+                //    "a = a / 2 ** combo = {a} / 2 ** {combo} = {}",
+                //    a / 2_u64.pow(combo)
+                //);
+                registers.insert("A", a / 2_u64.pow(combo as u32));
+                None
+            }
+            OpCodes::Bxl => {
+                //println!("b = b xor operand = {b} xor {operand} = {}", b ^ operand);
+                registers.insert("B", b ^ operand);
+                None
+            }
+            OpCodes::Bst => {
+                //println!("b = combo mod 8 = {combo} mod 8 = {}", combo % 8);
+                registers.insert("B", combo % 8);
+                None
+            }
+            OpCodes::Jnz => {
+                if a != 0 {
+                    //println!("jump {operand}");
+                    Some((operand, true))
+                } else {
+                    //println!("don't jump");
+                    None
+                }
+            }
+            OpCodes::Bxc => {
+                //println!("b = b xor c = {b} xor {c} = {}", b ^ c);
+                registers.insert("B", b ^ c);
+                None
+            }
+            OpCodes::Out => {
+                //println!("out {combo} % 8 = {}", combo % 8);
+                Some((combo % 8, false))
+            }
+            OpCodes::Bdv => {
+                //println!(
+                //    "b = a / 2 ** combo = {a} / 2 ** {combo} = {}",
+                //    a / 2_u64.pow(combo)
+                //);
+                registers.insert("B", a / 2_u64.pow(combo as u32));
+                None
+            }
+            OpCodes::Cdv => {
+                //println!(
+                //    "c = a / 2 ** combo = {a} / 2 ** {combo} = {}",
+                //    a / 2_u64.pow(combo)
+                //);
+                registers.insert("C", a / 2_u64.pow(combo as u32));
+                None
+            }
+        }
+    }
+}
+
+impl TryFrom<&str> for OpCodes {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: &str) -> std::result::Result<OpCodes, Box<dyn Error>> {
+        match value {
+            "0" => Ok(Self::Adv),
+            "1" => Ok(Self::Bxl),
+            "2" => Ok(Self::Bst),
+            "3" => Ok(Self::Jnz),
+            "4" => Ok(Self::Bxc),
+            "5" => Ok(Self::Out),
+            "6" => Ok(Self::Bdv),
+            "7" => Ok(Self::Cdv),
+            _ => Err(Box::from(format!("{value} is not a valid OpCode"))),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT_MAIN: &str = "Register A: 729
+Register B: 0
+Register C: 0
+
+Program: 0,1,5,4,3,0";
+
+    const INPUT_SMALL_1: &str = "Register A: 0
+Register B: 0
+Register C: 9
+
+Program: 2,6";
+
+    const INPUT_SMALL_2: &str = "Register A: 10
+Register B: 0
+Register C: 0
+
+Program: 5,0,5,1,5,4";
+
+    const INPUT_SMALL_3: &str = "Register A: 2024
+Register B: 0
+Register C: 0
+
+Program: 0,1,5,4,3,0";
+
+    const INPUT_SMALL_4: &str = "Register A: 0
+Register B: 29
+Register C: 0
+
+Program: 1,7";
+
+    const INPUT_SMALL_5: &str = "Register A: 0
+Register B: 2024
+Register C: 43690
+
+Program: 4,0";
+
+    const INPUT_COPY: &str = "Register A: 2024
+Register B: 0
+Register C: 0
+
+Program: 0,3,5,4,3,0";
+
+    #[test]
+    fn part1_main() {
+        let result = process_part1(INPUT_MAIN);
+        assert_eq!(result.0, "4,6,3,5,6,3,5,2,1,0".to_string());
+    }
+
+    #[test]
+    fn part1_small_1() {
+        let result = process_part1(INPUT_SMALL_1);
+        assert_eq!(result.1.get("B").unwrap(), &1);
+    }
+
+    #[test]
+    fn part1_small_2() {
+        let result = process_part1(INPUT_SMALL_2);
+        assert_eq!(result.0, "0,1,2".to_string());
+    }
+
+    #[test]
+    fn part1_small_3() {
+        let result = process_part1(INPUT_SMALL_3);
+        assert_eq!(result.1.get("A").unwrap(), &0);
+        assert_eq!(result.0, "4,2,5,6,7,7,7,7,3,1,0".to_string());
+    }
+
+    #[test]
+    fn part1_small_4() {
+        let result = process_part1(INPUT_SMALL_4);
+        assert_eq!(result.1.get("B").unwrap(), &26);
+    }
+
+    #[test]
+    fn part1_small_5() {
+        let result = process_part1(INPUT_SMALL_5);
+        assert_eq!(result.1.get("B").unwrap(), &44354);
+    }
+
+    #[test]
+    fn part2() {
+        let result = process_part2(INPUT_COPY);
+        assert_eq!(result, 117440);
+    }
+}

y2024/src/days/d18.rs

@@ -0,0 +1,294 @@
+use std::{collections::HashSet, error::Error};
+
+use itertools::Itertools;
+
+pub fn process_part1(input: &str) -> u32 {
+    let falling_bytes = &input
+        .lines()
+        .map(|line| {
+            let (x, y) = line.split_once(",").unwrap();
+            (x.parse().unwrap(), y.parse().unwrap())
+        })
+        .collect_vec()[..1024];
+    let y_walls = vec![GridTile::Wall; 73];
+    let mut inner_rows = vec![GridTile::Path; 71];
+    inner_rows.insert(0, GridTile::Wall);
+    inner_rows.push(GridTile::Wall);
+    let mut grid = vec![inner_rows; 71];
+    grid.insert(0, y_walls.clone());
+    grid.push(y_walls);
+    simulate(grid, falling_bytes).unwrap()
+}
+
+fn simulate(mut grid: Vec<Vec<GridTile>>, falling_bytes: &[(usize, usize)]) -> Option<u32> {
+    grid[1][1] = GridTile::Start;
+    let height = grid.len();
+    let width = grid[0].len();
+    grid[height - 2][width - 2] = GridTile::End;
+    falling_bytes.iter().for_each(|(x, y)| {
+        grid[*y + 1][*x + 1] = GridTile::Wall;
+    });
+    let mut visited = HashSet::new();
+    visited.insert((1, 1));
+    let mut next_paths = vec![MazeRunner {
+        coords: (1, 1),
+        visited: visited.clone(),
+        ..Default::default()
+    }];
+    let mut arrived: Vec<MazeRunner> = Vec::new();
+    while !next_paths.is_empty() {
+        next_paths = next_paths
+            .iter()
+            .map(|maze_runner| {
+                let mut paths = Vec::new();
+                if let Some(path) = maze_runner.get_next(&grid, Direction::Up) {
+                    paths.push(path);
+                }
+                if let Some(path) = maze_runner.get_next(&grid, Direction::Down) {
+                    paths.push(path);
+                }
+                if let Some(path) = maze_runner.get_next(&grid, Direction::Left) {
+                    paths.push(path);
+                }
+                if let Some(path) = maze_runner.get_next(&grid, Direction::Right) {
+                    paths.push(path);
+                }
+                paths
+            })
+            .collect_vec()
+            .concat();
+        for (idx, maze_runner) in next_paths.clone().iter().enumerate().rev() {
+            if maze_runner.visited.contains(&maze_runner.coords)
+                || visited.contains(&maze_runner.coords)
+            {
+                next_paths.remove(idx);
+                continue;
+            }
+            visited.insert(maze_runner.coords);
+            next_paths[idx].visited.insert(maze_runner.coords);
+            if maze_runner.state == State::Arrived {
+                let arrived_reindeer = next_paths.remove(idx);
+                arrived.push(arrived_reindeer);
+            }
+        }
+    }
+    //let visited = arrived
+    //    .iter()
+    //    .map(|reindeer| {
+    //        reindeer
+    //            .visited
+    //            .iter()
+    //            .map(|(coords, _)| coords)
+    //            .collect_vec()
+    //    })
+    //    .collect_vec()
+    //    .concat();
+    //visited.iter().unique().count()
+    arrived.sort_by(|a_runner, b_runner| a_runner.visited.len().cmp(&b_runner.visited.len()));
+    if let Some(arrived) = arrived.first() {
+        log_maze(&grid, arrived);
+        Some(arrived.visited.len() as u32 - 1)
+    } else {
+        None
+    }
+}
+
+pub fn process_part2(input: &str) -> String {
+    let falling_bytes = &input
+        .lines()
+        .map(|line| {
+            let (x, y) = line.split_once(",").unwrap();
+            (x.parse::<usize>().unwrap(), y.parse::<usize>().unwrap())
+        })
+        .collect_vec();
+    let y_walls = vec![GridTile::Wall; 73];
+    let mut inner_rows = vec![GridTile::Path; 71];
+    inner_rows.insert(0, GridTile::Wall);
+    inner_rows.push(GridTile::Wall);
+    let mut grid = vec![inner_rows; 71];
+    grid.insert(0, y_walls.clone());
+    grid.push(y_walls);
+    let mut num_bytes = 1025;
+    while simulate(grid.clone(), &falling_bytes[..num_bytes]).is_some() {
+        num_bytes += 1;
+    }
+    let (x, y) = falling_bytes[num_bytes - 1];
+    format!("{x},{y}")
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+enum Direction {
+    Up,
+    Down,
+    Left,
+    Right,
+}
+
+#[derive(Debug, Default, Clone, PartialEq, Eq)]
+enum State {
+    #[default]
+    Going,
+    Arrived,
+}
+
+#[derive(Debug, Default, Clone, PartialEq, Eq)]
+struct MazeRunner {
+    coords: (usize, usize),
+    visited: HashSet<(usize, usize)>,
+    state: State,
+}
+
+impl MazeRunner {
+    fn get_next(&self, grid: &[Vec<GridTile>], direction: Direction) -> Option<MazeRunner> {
+        let tile = match direction {
+            Direction::Up => grid[self.coords.1 - 1][self.coords.0],
+            Direction::Down => grid[self.coords.1 + 1][self.coords.0],
+            Direction::Right => grid[self.coords.1][self.coords.0 + 1],
+            Direction::Left => grid[self.coords.1][self.coords.0 - 1],
+        };
+        let coords = match direction {
+            Direction::Up => (self.coords.0, self.coords.1 - 1),
+            Direction::Down => (self.coords.0, self.coords.1 + 1),
+            Direction::Left => (self.coords.0 - 1, self.coords.1),
+            Direction::Right => (self.coords.0 + 1, self.coords.1),
+        };
+        if tile == GridTile::Wall {
+            None
+        } else if tile == GridTile::End {
+            Some(MazeRunner {
+                state: State::Arrived,
+                coords,
+                ..self.clone()
+            })
+        } else {
+            Some(MazeRunner {
+                coords,
+                ..self.clone()
+            })
+        }
+    }
+}
+
+#[derive(Debug, Default, Clone, Copy, Hash, PartialEq, Eq)]
+enum GridTile {
+    Wall,
+    #[default]
+    Path,
+    Start,
+    End,
+}
+
+impl TryFrom<char> for GridTile {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: char) -> std::result::Result<GridTile, Box<dyn Error>> {
+        match value {
+            '#' => Ok(Self::Wall),
+            '.' => Ok(Self::Path),
+            'S' => Ok(Self::Start),
+            'E' => Ok(Self::End),
+            _ => Err(Box::from(format!("{value} is not a valid tile"))),
+        }
+    }
+}
+
+fn log_maze(grid: &[Vec<GridTile>], maze_runner: &MazeRunner) {
+    for (yidx, row) in grid.iter().enumerate() {
+        for (xidx, tile) in row.iter().enumerate() {
+            let contains = {
+                maze_runner.visited.contains(&(xidx, yidx))
+                    || maze_runner.visited.contains(&(xidx, yidx))
+                    || maze_runner.visited.contains(&(xidx, yidx))
+                    || maze_runner.visited.contains(&(xidx, yidx))
+            };
+            if contains && !(*tile == GridTile::Start || *tile == GridTile::End) {
+                print!("O");
+            } else if *tile == GridTile::Wall {
+                print!("#");
+            } else if *tile == GridTile::Path {
+                print!(".");
+            } else if *tile == GridTile::Start {
+                print!("S");
+            } else if *tile == GridTile::End {
+                print!("E");
+            }
+        }
+        println!();
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT: &str = "5,4
+4,2
+4,5
+3,0
+2,1
+6,3
+2,4
+1,5
+0,6
+3,3
+2,6
+5,1
+1,2
+5,5
+2,5
+6,5
+1,4
+0,4
+6,4
+1,1
+6,1
+1,0
+0,5
+1,6
+2,0";
+
+    #[test]
+    fn part1() {
+        let falling_bytes = &INPUT
+            .lines()
+            .map(|line| {
+                let (x, y) = line.split_once(",").unwrap();
+                (x.parse().unwrap(), y.parse().unwrap())
+            })
+            .collect_vec()[..12];
+        let y_walls = vec![GridTile::Wall; 9];
+        let mut inner_rows = vec![GridTile::Path; 7];
+        inner_rows.insert(0, GridTile::Wall);
+        inner_rows.push(GridTile::Wall);
+        let mut grid = vec![inner_rows; 7];
+        grid.insert(0, y_walls.clone());
+        grid.push(y_walls);
+        let result = simulate(grid, falling_bytes);
+        assert_eq!(result, Some(22));
+    }
+
+    #[test]
+    fn part2() {
+        let falling_bytes = INPUT
+            .lines()
+            .map(|line| {
+                let (x, y) = line.split_once(",").unwrap();
+                (x.parse::<usize>().unwrap(), y.parse::<usize>().unwrap())
+            })
+            .collect_vec();
+        let y_walls = vec![GridTile::Wall; 9];
+        let mut inner_rows = vec![GridTile::Path; 7];
+        inner_rows.insert(0, GridTile::Wall);
+        inner_rows.push(GridTile::Wall);
+        let mut grid = vec![inner_rows; 7];
+        grid.insert(0, y_walls.clone());
+        grid.push(y_walls);
+        let mut num_bytes = 12;
+        while simulate(grid.clone(), &falling_bytes[..num_bytes]).is_some() {
+            num_bytes += 1;
+        }
+        let (x, y) = falling_bytes[num_bytes - 1];
+        let result = format!("{x},{y}");
+        assert_eq!(result, "6,1".to_string());
+    }
+}

y2024/src/days/d19.rs

@@ -0,0 +1,96 @@
+use std::collections::HashMap;
+
+use itertools::Itertools;
+
+pub fn process_part1(input: &str) -> u64 {
+    let (patterns, designs) = input.split_once("\n\n").unwrap();
+    let patterns = patterns.split(", ").collect_vec();
+    designs
+        .lines()
+        .map(|design| {
+            if possible_design(design, &patterns) {
+                1
+            } else {
+                0
+            }
+        })
+        .sum()
+}
+
+fn possible_design(design: &str, patterns: &[&str]) -> bool {
+    for pattern in patterns {
+        if design.starts_with(pattern) && design.len() == pattern.len() {
+            return true;
+        } else if design.starts_with(pattern) {
+            if let Some(stripped) = design.strip_prefix(pattern) {
+                if possible_design(stripped, patterns) {
+                    return true;
+                }
+            }
+        }
+    }
+    false
+}
+
+fn possible_designs(design: &str, patterns: &[&str], memo: &mut HashMap<String, u64>) -> u64 {
+    if design.is_empty() {
+        return 0;
+    }
+    let mut num_possible_designs = 0;
+    if let Some(count) = memo.get(design) {
+        return *count;
+    }
+    for pattern in patterns {
+        if design == *pattern {
+            memo.insert(design.to_string(), 1);
+            num_possible_designs += 1;
+        }
+        if design.starts_with(pattern) {
+            if let Some(stripped) = design.strip_prefix(pattern) {
+                let for_stripped = possible_designs(stripped, patterns, memo);
+                memo.entry(stripped.to_string()).or_insert(for_stripped);
+                num_possible_designs += for_stripped;
+            }
+        }
+    }
+    memo.insert(design.to_string(), num_possible_designs);
+    num_possible_designs
+}
+
+pub fn process_part2(input: &str) -> u64 {
+    let (patterns, designs) = input.split_once("\n\n").unwrap();
+    let patterns = patterns.split(", ").collect_vec();
+    let mut memo = HashMap::new();
+    designs
+        .lines()
+        .map(|design| possible_designs(design, &patterns, &mut memo))
+        .sum()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT: &str = "r, wr, b, g, bwu, rb, gb, br
+
+brwrr
+bggr
+gbbr
+rrbgbr
+ubwu
+bwurrg
+brgr
+bbrgwb";
+
+    #[test]
+    fn part1() {
+        let result = process_part1(INPUT);
+        assert_eq!(result, 6);
+    }
+
+    #[test]
+    fn part2() {
+        let result = process_part2(INPUT);
+        assert_eq!(result, 16);
+    }
+}

y2024/src/days/d20.rs

@@ -0,0 +1,232 @@
+use std::{
+    collections::{HashMap, HashSet},
+    error::Error,
+};
+
+use itertools::Itertools;
+
+pub fn process_part1(input: &str) -> u32 {
+    simulate_all(input, 100, 2).values().copied().sum()
+}
+
+pub fn process_part2(input: &str) -> u32 {
+    simulate_all(input, 100, 20).values().copied().sum()
+}
+
+fn simulate_all(input: &str, time_to_save: usize, max_cheat_time: usize) -> HashMap<u32, u32> {
+    let mut start = (0, 0);
+    let grid = input
+        .lines()
+        .enumerate()
+        .map(|(yidx, row)| {
+            row.chars()
+                .enumerate()
+                .map(|(xidx, chara)| {
+                    let tile = GridTile::try_from(chara).unwrap();
+                    if tile == GridTile::Start {
+                        start = (xidx, yidx);
+                    }
+                    tile
+                })
+                .collect_vec()
+        })
+        .collect_vec();
+    let no_cheat = simulate(&grid, start);
+    let mut saved = HashMap::new();
+    for (tile_idx, tile) in no_cheat[..no_cheat.len() - time_to_save].iter().enumerate() {
+        for (cheat_idx, cheat) in no_cheat[tile_idx..].iter().enumerate() {
+            let manhattan = tile.0.abs_diff(cheat.0) + tile.1.abs_diff(cheat.1);
+            if manhattan <= max_cheat_time {
+                let time_saved = cheat_idx - manhattan;
+                if time_saved >= time_to_save {
+                    saved
+                        .entry(time_saved as u32)
+                        .and_modify(|count| *count += 1)
+                        .or_insert(1);
+                }
+            }
+        }
+    }
+    saved
+}
+
+fn simulate(grid: &[Vec<GridTile>], start: (usize, usize)) -> Vec<(usize, usize)> {
+    let mut visited = HashSet::new();
+    visited.insert(start);
+    let mut next_paths = vec![MazeRunner {
+        coords: start,
+        visited: visited.clone(),
+        ..Default::default()
+    }];
+    let mut visited = Vec::new();
+    visited.push(start);
+    let mut arrived: Vec<MazeRunner> = Vec::new();
+    while !next_paths.is_empty() {
+        next_paths = next_paths
+            .iter()
+            .map(|maze_runner| {
+                let mut paths = Vec::new();
+                if let Some(path) = maze_runner.get_next(grid, Direction::Up) {
+                    paths.push(path);
+                }
+                if let Some(path) = maze_runner.get_next(grid, Direction::Down) {
+                    paths.push(path);
+                }
+                if let Some(path) = maze_runner.get_next(grid, Direction::Left) {
+                    paths.push(path);
+                }
+                if let Some(path) = maze_runner.get_next(grid, Direction::Right) {
+                    paths.push(path);
+                }
+                paths
+            })
+            .collect_vec()
+            .concat();
+        for (idx, maze_runner) in next_paths.clone().iter().enumerate().rev() {
+            if maze_runner.visited.contains(&maze_runner.coords)
+                || visited.contains(&maze_runner.coords)
+            {
+                next_paths.remove(idx);
+                continue;
+            }
+            visited.push(maze_runner.coords);
+            next_paths[idx].visited.insert(maze_runner.coords);
+            if maze_runner.state == State::Arrived {
+                let arrived_reindeer = next_paths.remove(idx);
+                arrived.push(arrived_reindeer);
+            }
+        }
+    }
+    visited
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+enum Direction {
+    Up,
+    Down,
+    Left,
+    Right,
+}
+
+#[derive(Debug, Default, Clone, PartialEq, Eq)]
+enum State {
+    #[default]
+    Going,
+    Arrived,
+}
+
+#[derive(Debug, Default, Clone, PartialEq, Eq)]
+struct MazeRunner {
+    coords: (usize, usize),
+    visited: HashSet<(usize, usize)>,
+    state: State,
+}
+
+impl MazeRunner {
+    fn get_next(&self, grid: &[Vec<GridTile>], direction: Direction) -> Option<MazeRunner> {
+        let tile = match direction {
+            Direction::Up => grid[self.coords.1 - 1][self.coords.0],
+            Direction::Down => grid[self.coords.1 + 1][self.coords.0],
+            Direction::Right => grid[self.coords.1][self.coords.0 + 1],
+            Direction::Left => grid[self.coords.1][self.coords.0 - 1],
+        };
+        let coords = match direction {
+            Direction::Up => (self.coords.0, self.coords.1 - 1),
+            Direction::Down => (self.coords.0, self.coords.1 + 1),
+            Direction::Left => (self.coords.0 - 1, self.coords.1),
+            Direction::Right => (self.coords.0 + 1, self.coords.1),
+        };
+        if tile == GridTile::Wall {
+            None
+        } else if tile == GridTile::End {
+            Some(MazeRunner {
+                state: State::Arrived,
+                coords,
+                ..self.clone()
+            })
+        } else {
+            Some(MazeRunner {
+                coords,
+                ..self.clone()
+            })
+        }
+    }
+}
+
+#[derive(Debug, Default, Clone, Copy, Hash, PartialEq, Eq)]
+enum GridTile {
+    Wall,
+    #[default]
+    Path,
+    Start,
+    End,
+}
+
+impl TryFrom<char> for GridTile {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: char) -> std::result::Result<GridTile, Box<dyn Error>> {
+        match value {
+            '#' => Ok(Self::Wall),
+            '.' => Ok(Self::Path),
+            'S' => Ok(Self::Start),
+            'E' => Ok(Self::End),
+            _ => Err(Box::from(format!("{value} is not a valid tile"))),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::time::Instant;
+
+    use utils::time::get_elapsed_string;
+
+    use super::*;
+
+    const INPUT: &str = "###############
+#...#...#.....#
+#.#.#.#.#.###.#
+#S#...#.#.#...#
+#######.#.#.###
+#######.#.#...#
+#######.#.###.#
+###..E#...#...#
+###.#######.###
+#...###...#...#
+#.#####.#.###.#
+#.#...#.#.#...#
+#.#.#.#.#.#.###
+#...#...#...###
+###############";
+
+    #[test]
+    fn part1() {
+        let now = Instant::now();
+        println!("Test 2:");
+        let result = simulate_all(INPUT, 2, 2);
+        result
+            .iter()
+            .sorted_by(|a, b| a.0.cmp(b.0))
+            .for_each(|(saved, count)| {
+                println!("There are {count} cheats that saved {saved} picoseconds");
+            });
+        println!("Ran in {}", get_elapsed_string(now.elapsed()));
+        assert_eq!(result.values().copied().sum::<u32>(), 44);
+    }
+
+    #[test]
+    fn part2() {
+        let now = Instant::now();
+        println!("Test 2:");
+        let result = simulate_all(INPUT, 50, 20);
+        result
+            .iter()
+            .sorted_by(|a, b| a.0.cmp(b.0))
+            .for_each(|(saved, count)| {
+                println!("There are {count} cheats that saved {saved} picoseconds");
+            });
+        println!("Ran in {}", get_elapsed_string(now.elapsed()));
+        assert_eq!(result.values().copied().sum::<u32>(), 285);
+    }
+}

y2024/src/days/d21.rs

@@ -0,0 +1,344 @@
+use std::{char, collections::HashMap, error::Error, sync::mpsc};
+
+use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
+
+pub fn process_part1(input: &str) -> usize {
+    let mut memo = HashMap::new();
+    input
+        .lines()
+        .map(|line| {
+            let numpad = Numpad::from(line);
+            println!("first robot {}", numpad.sequence);
+            let _ = Numpad::revert_from(&numpad.sequence);
+            let keypad_1 = Keypad::from(numpad.sequence.as_str());
+            println!("second robot {}", keypad_1.sequence);
+            let _ = Keypad::revert_from(&keypad_1.sequence);
+            let keypad_2 = Keypad::from(keypad_1.sequence.as_str());
+            println!("me {}", keypad_2.sequence);
+            let _ = Keypad::revert_from(&keypad_2.sequence);
+            keypad_2.sequence.len() * numeric_part(line)
+        })
+        .sum()
+}
+
+fn extend_sequence(
+    sequence_parts: &[Vec<String>],
+    memo: &mut HashMap<(char, char), Vec<String>>,
+) -> Vec<Vec<String>> {
+    sequence_parts.iter().map(|possible_parts| {
+        let (tx, rx) = mpsc::channel();
+        let mut new_possible_parts = Vec::new();
+        possible_parts.par_iter().for_each(|part| {
+            let _ = tx.send();
+        });
+        drop(tx);
+        while let Ok(part) = rx.recv() {
+            new_possible_parts.extend_from_slice(part);
+        }
+        new_possible_parts
+    })
+}
+
+pub fn process_part2(input: &str) -> usize {
+    0
+}
+
+fn numeric_part(code: &str) -> usize {
+    let code = &code[..code.len() - 1];
+    code.parse().unwrap()
+}
+
+#[derive(Debug, Clone, Copy)]
+enum NumpadState {
+    Seven,
+    Eight,
+    Nine,
+    Four,
+    Five,
+    Six,
+    One,
+    Two,
+    Three,
+    Zero,
+    A,
+}
+
+impl NumpadState {
+    fn get_col(&self) -> i32 {
+        match self {
+            NumpadState::Seven | NumpadState::Four | NumpadState::One => 0,
+            NumpadState::Eight | NumpadState::Five | NumpadState::Two | NumpadState::Zero => 1,
+            NumpadState::Nine | NumpadState::Six | NumpadState::Three | NumpadState::A => 2,
+        }
+    }
+
+    fn get_row(&self) -> i32 {
+        match self {
+            NumpadState::Seven | NumpadState::Eight | NumpadState::Nine => 0,
+            NumpadState::Four | NumpadState::Five | NumpadState::Six => 1,
+            NumpadState::One | NumpadState::Two | NumpadState::Three => 2,
+            NumpadState::Zero | NumpadState::A => 3,
+        }
+    }
+
+    fn get_sequences(&self, goto: NumpadState) -> Vec<String> {
+        let row = self.get_row();
+        let col = self.get_col();
+        let goto_row = goto.get_row();
+        let goto_col = goto.get_col();
+        if row == goto_row && col == goto_col {
+            return vec!["A".to_string()];
+        }
+        let row_diff = row.abs_diff(goto_row);
+        let col_diff = col.abs_diff(goto_col);
+        let mut sequence = String::new();
+        let row_seq = match goto_row.cmp(&row) {
+            std::cmp::Ordering::Less => vec!["^"; row_diff as usize].join(""),
+            std::cmp::Ordering::Equal => "".to_string(),
+            std::cmp::Ordering::Greater => vec!["v"; row_diff as usize].join(""),
+        };
+        let col_seq = match goto_col.cmp(&col) {
+            std::cmp::Ordering::Less => vec!["<"; col_diff as usize].join(""),
+            std::cmp::Ordering::Equal => "".to_string(),
+            std::cmp::Ordering::Greater => vec![">"; col_diff as usize].join(""),
+        };
+        if (goto_col < col && row < 3) || col == 0 {
+            sequence.push_str(&col_seq);
+            sequence.push_str(&row_seq);
+        } else {
+            sequence.push_str(&row_seq);
+            sequence.push_str(&col_seq);
+        }
+        sequence.push('A');
+        sequence
+    }
+}
+
+impl TryFrom<char> for NumpadState {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: char) -> Result<Self, Self::Error> {
+        match value {
+            'A' => Ok(NumpadState::A),
+            '0' => Ok(NumpadState::Zero),
+            '1' => Ok(NumpadState::One),
+            '2' => Ok(NumpadState::Two),
+            '3' => Ok(NumpadState::Three),
+            '4' => Ok(NumpadState::Four),
+            '5' => Ok(NumpadState::Five),
+            '6' => Ok(NumpadState::Six),
+            '7' => Ok(NumpadState::Seven),
+            '8' => Ok(NumpadState::Eight),
+            '9' => Ok(NumpadState::Nine),
+            _ => Err(Box::from("Unrecognised keystate")),
+        }
+    }
+}
+
+impl TryFrom<(usize, usize)> for NumpadState {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: (usize, usize)) -> Result<Self, Self::Error> {
+        match value {
+            (2, 3) => Ok(NumpadState::A),
+            (1, 3) => Ok(NumpadState::Zero),
+            (0, 2) => Ok(NumpadState::One),
+            (1, 2) => Ok(NumpadState::Two),
+            (2, 2) => Ok(NumpadState::Three),
+            (0, 1) => Ok(NumpadState::Four),
+            (1, 1) => Ok(NumpadState::Five),
+            (2, 1) => Ok(NumpadState::Six),
+            (0, 0) => Ok(NumpadState::Seven),
+            (1, 0) => Ok(NumpadState::Eight),
+            (2, 0) => Ok(NumpadState::Nine),
+            (0, 3) => Err(Box::from("Robot arm hovering over numpad gap")),
+            (x, y) => {
+                let err = format!("Unrecognised numpad key coord ({x}, {y})");
+                Err(err.into())
+            }
+        }
+    }
+}
+
+impl From<NumpadState> for char {
+    fn from(value: NumpadState) -> Self {
+        match value {
+            NumpadState::Seven => '7',
+            NumpadState::Eight => '8',
+            NumpadState::Nine => '9',
+            NumpadState::Four => '4',
+            NumpadState::Five => '5',
+            NumpadState::Six => '6',
+            NumpadState::One => '1',
+            NumpadState::Two => '2',
+            NumpadState::Three => '3',
+            NumpadState::Zero => '0',
+            NumpadState::A => 'A',
+        }
+    }
+}
+
+#[derive(Debug, Clone, Copy)]
+enum KeypadState {
+    Up,
+    A,
+    Left,
+    Down,
+    Right,
+}
+
+impl KeypadState {
+    fn get_col(&self) -> i32 {
+        match self {
+            KeypadState::Left => 0,
+            KeypadState::Up | KeypadState::Down => 1,
+            KeypadState::A | KeypadState::Right => 2,
+        }
+    }
+
+    fn get_row(&self) -> i32 {
+        match self {
+            KeypadState::Up | KeypadState::A => 0,
+            KeypadState::Left | KeypadState::Down | KeypadState::Right => 1,
+        }
+    }
+
+    fn get_sequence(&self, goto: KeypadState) -> Vec<String> {
+        let row = self.get_row();
+        let col = self.get_col();
+        let goto_row = goto.get_row();
+        let goto_col = goto.get_col();
+        if row == goto_row && col == goto_col {
+            return vec!["A".to_string()];
+        }
+        let row_diff = row.abs_diff(goto_row);
+        let col_diff = col.abs_diff(goto_col);
+        let mut sequence = String::new();
+        let row_seq = match goto_row.cmp(&row) {
+            std::cmp::Ordering::Less => vec!["^"; row_diff as usize].join(""),
+            std::cmp::Ordering::Equal => "".to_string(),
+            std::cmp::Ordering::Greater => vec!["v"; row_diff as usize].join(""),
+        };
+        let col_seq = match goto_col.cmp(&col) {
+            std::cmp::Ordering::Less => vec!["<"; col_diff as usize].join(""),
+            std::cmp::Ordering::Equal => "".to_string(),
+            std::cmp::Ordering::Greater => vec![">"; col_diff as usize].join(""),
+        };
+        if (goto_col < col && row == 1) || col == 0 {
+            sequence.push_str(&col_seq);
+            sequence.push_str(&row_seq);
+        } else {
+            sequence.push_str(&row_seq);
+            sequence.push_str(&col_seq);
+        }
+        sequence.push('A');
+        sequence
+    }
+}
+
+impl TryFrom<char> for KeypadState {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: char) -> Result<Self, Self::Error> {
+        match value {
+            'A' => Ok(KeypadState::A),
+            '<' => Ok(KeypadState::Left),
+            '>' => Ok(KeypadState::Right),
+            'v' => Ok(KeypadState::Down),
+            '^' => Ok(KeypadState::Up),
+            _ => Err(Box::from("Unrecognised keystate")),
+        }
+    }
+}
+
+impl TryFrom<(usize, usize)> for KeypadState {
+    type Error = Box<dyn Error>;
+
+    fn try_from(value: (usize, usize)) -> Result<Self, Self::Error> {
+        match value {
+            (2, 0) => Ok(KeypadState::A),
+            (0, 1) => Ok(KeypadState::Left),
+            (2, 1) => Ok(KeypadState::Right),
+            (1, 1) => Ok(KeypadState::Down),
+            (1, 0) => Ok(KeypadState::Up),
+            (0, 0) => Err(Box::from("Robot arm hovering over keypad gap")),
+            (x, y) => {
+                let err = format!("Unrecognised key coord ({x}, {y})");
+                Err(err.into())
+            }
+        }
+    }
+}
+
+impl From<KeypadState> for char {
+    fn from(value: KeypadState) -> Self {
+        match value {
+            KeypadState::A => 'A',
+            KeypadState::Up => '^',
+            KeypadState::Left => '<',
+            KeypadState::Down => 'v',
+            KeypadState::Right => '>',
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT_1: &str = "029A";
+    const INPUT_2: &str = "980A";
+    const INPUT_3: &str = "179A";
+    const INPUT_4: &str = "456A";
+    const INPUT_5: &str = "379A";
+
+    const INPUT_1_BACK: &str =
+        "<vA<AA>>^AvAA<^A>A<v<A>>^AvA^A<vA>^A<v<A>^A>AAvA^A<v<A>A>^AAAvA<^A>A";
+    const INPUT_2_BACK: &str = "<v<A>>^AAAvA^A<vA<AA>>^AvAA<^A>A<v<A>A>^AAAvA<^A>A<vA>^A<A>A";
+    const INPUT_3_BACK: &str =
+        "<v<A>>^A<vA<A>>^AAvAA<^A>A<v<A>>^AAvA^A<vA>^AA<A>A<v<A>A>^AAAvA<^A>A";
+    const INPUT_4_BACK: &str = "<v<A>>^AA<vA<A>>^AAvAA<^A>A<vA>^A<A>A<vA>^A<A>A<v<A>A>^AAvA<^A>A";
+    const INPUT_5_BACK: &str = "<v<A>>^AvA^A<vA<AA>>^AAvA<^A>AAvA^A<vA>^AA<A>A<v<A>A>^AAAvA<^A>A";
+
+    #[test]
+    fn part1_full() {
+        let result = process_part1(&[INPUT_1, INPUT_2, INPUT_3, INPUT_4, INPUT_5].join("\n"));
+        assert_eq!(result, 126384);
+    }
+
+    #[test]
+    fn part1_1() {
+        let result = process_part1(INPUT_1);
+        assert_eq!(result, 29 * 68);
+    }
+
+    #[test]
+    fn part1_2() {
+        let result = process_part1(INPUT_2);
+        assert_eq!(result, 60 * 980);
+    }
+
+    #[test]
+    fn part1_3() {
+        let result = process_part1(INPUT_3);
+        assert_eq!(result, 68 * 179);
+    }
+
+    #[test]
+    fn part1_4() {
+        let result = process_part1(INPUT_4);
+        assert_eq!(result, 64 * 456);
+    }
+
+    #[test]
+    fn part1_5() {
+        let result = process_part1(INPUT_5);
+        assert_eq!(result, 64 * 379);
+    }
+
+    #[test]
+    fn part2() {
+        let result = process_part2(INPUT_1);
+        assert_eq!(result, 0);
+    }
+}

y2024/src/days/mod.rs

@@ -9,3 +9,25 @@ pub mod d8;
 pub mod d9;
 
 pub mod d10;
+
+pub mod d11;
+
+pub mod d12;
+
+pub mod d13;
+
+pub mod d14;
+
+pub mod d15;
+
+pub mod d16;
+
+pub mod d17;
+
+pub mod d18;
+
+pub mod d19;
+
+pub mod d20;
+
+pub mod d21;