progress

aoc2025/day1.rs

@@ -30,28 +30,37 @@ fn parse(input: &str) -> Vec<Rotation> {
     }).collect()
 }
 
-pub fn part1() -> u32 {
+fn gaby() -> (u32, u32) {
     let input = &load_string("inputs/2025/day1.input");
     //let input = TEST_INPUT;
     let mut current_rotation = START;
-    let mut result: u32 = 0;
+    let mut result_part1: u32 = 0;
+    let mut result_part2: u32 = 0;
     for roation in parse(input).iter() {
         match roation {
             Rotation::Left(amount) => {
                 // overflows to the left
-                current_rotation = (((current_rotation as i32) - *amount as i32).rem_euclid(100)) as u32;
+                let new = (current_rotation as i32) - *amount as i32;
+                current_rotation = new.rem_euclid(100) as u32;
+                result_part2 += ((new.abs() + if new < 0 {100} else {0}) / 100) as u32;
             },
             Rotation::Right(amount) => {
                 // overflows to the right
-                current_rotation = (((current_rotation as i32) + *amount as i32).rem_euclid(100)) as u32;
+                let new = (current_rotation as i32) + *amount as i32;
+                current_rotation = new.rem_euclid(100) as u32;
+                result_part2 += (new / 100) as u32;
             },
         }
         if current_rotation == 0 {
-            result += 1;
+            result_part1 += 1;
         }
     }
-    result
+    (result_part1, result_part2)
+}
+
+pub fn part1() -> u32 {
+    gaby().0
 }
 pub fn part2() -> u32 {
-    0
+    gaby().1
 }