tidy up

src/day_1.rs

@@ -1,4 +1,4 @@
-pub fn part_1(input: &String) -> String {
+pub fn part_1(input: &String) -> u64 {
     let elves: Vec<&str> = input.split("\n\n").collect();
 
     let mut highest_calorie_count: u64 = 0;
@@ -15,7 +15,7 @@ pub fn part_1(input: &String) -> String {
         }
     }
 
-    format!("{highest_calorie_count}")
+    highest_calorie_count
 }
 
 pub fn part_2(input: &String) -> u64 {
@@ -28,7 +28,5 @@ pub fn part_2(input: &String) -> u64 {
     let start = elf_calorie_counts.len() - 3;
     let top_3 = elf_calorie_counts.drain(start..);
 
-    println!("Top 3 elves: {:?}", top_3);
-
     top_3.sum()
 }