y2015d15 very chaotic code, how to do dynamic, nested loops?

y2015/src/bin/d15.rs

@@ -0,0 +1,20 @@
+use std::fs;
+
+use y2015::days::d15;
+
+fn main() {
+    part1();
+    part2();
+}
+
+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));
+}