feat: Ready for day 4, clippy has been satisfied :)

src/solutions/day02.rs

@@ -19,7 +19,7 @@ impl Solution for Day02 {
             .iter()
             .map(|(_, hi)| hi.clone())
             .max()
-            .unwrap_or_else(|| BigUint::zero());
+            .unwrap_or_else(BigUint::zero);
 
         let max_digits = self.digits_of(&overall_max);
 
@@ -102,7 +102,7 @@ impl Solution for Day02 {
             .iter()
             .map(|(_, hi)| hi.clone())
             .max()
-            .unwrap_or_else(|| BigUint::zero());
+            .unwrap_or_else(BigUint::zero);
 
         let max_digits = self.digits_of(&overall_max);
 

src/solutions/day03.rs

@@ -96,8 +96,8 @@ impl Day03 {
         }
 
         // Otherwise, place the battery and recurse
-        return (max_val as u64) * 10u64.pow((num_batteries - 1) as u32)
-            + self.calculate_joltage(num_batteries - 1, &bank[max_idx + 1..bank.len()]);
+        (max_val as u64) * 10u64.pow((num_batteries - 1) as u32)
+            + self.calculate_joltage(num_batteries - 1, &bank[max_idx + 1..bank.len()])
     }
 }
 

src/solutions/day04.rs

@@ -44,7 +44,7 @@ mod test {
             .unwrap()
             .to_string();
 
-        assert_eq!(answer, "Ready");
+        assert_eq!(answer, "13");
     }
 
     #[test]