solved 22

src/bin/problem_22.rs

@@ -0,0 +1,30 @@
+use std::fs::File;
+use std::io::{BufRead, BufReader};
+
+fn main() {
+    let file = File::open("names.txt").expect("Could not open file");
+    let mut reader = BufReader::new(file);
+    let mut sorted_names = vec![];
+    loop {
+        let mut buffer = vec![];
+        let num_bytes = reader.read_until(b',', &mut buffer).expect("could not read until");
+        if num_bytes == 0 {
+            break;
+        }
+        match sorted_names.binary_search(&buffer[..buffer.len()-1].to_vec()) {
+            Ok(_pos) => {}
+            Err(pos) => sorted_names.insert(pos, buffer[..buffer.len()-1].to_vec())
+        }
+    }
+    let score_total = sorted_names.iter().enumerate().map(|(pos, bytes)| {
+        bytes.iter().map(|&byte| {
+            // Don't count " in front and back of name, or in the case of Alonso, only front since it's been removed in the sorting stage for him
+            if byte != b'"' {
+                (byte - b'@') as usize
+            } else {
+                0
+            }
+        }).sum::<usize>() * (pos + 1)
+    }).sum::<usize>();
+    println!("\nscore: {score_total}");
+}