small refactorings

AoC_2025/Day01.cs

@@ -73,24 +73,6 @@ public class Day01 : IPuzzleSolver<int>
         return mod;
     }
 
-    private static bool HasPassedZero(bool hasOverflow, int dialPosition)
-    {
-        return dialPosition != 0 && hasOverflow;
-    }
-
-    private static (int nextDialPosition, bool passedZero) GetNextDialPosition(int rotationAmount, int dialPosition)
-    {
-        var actualRotation = rotationAmount % 100;
-        var nextDialPosition = dialPosition + actualRotation;
-        var hasOverflow = nextDialPosition is > 99 or < 1;
-        nextDialPosition %= 100;
-        if (nextDialPosition < 0)
-        {
-            nextDialPosition = 100 + nextDialPosition;
-        }
-        return (nextDialPosition, hasOverflow);
-    }
-
     private static int ParseRotationAmount(string puzzleInput)
     {
         var direction = puzzleInput[..1];
@@ -102,11 +84,4 @@ public class Day01 : IPuzzleSolver<int>
 
         return rotationAmount;
     }
-
-    private static int CountFullRotations(int rotationAmount)
-    {
-        var fullRotations = Math.Abs(rotationAmount / 100);
-
-        return fullRotations;
-    }
 }

AoC_2025/Day05.cs

@@ -113,7 +113,7 @@ public class Day05 : IPuzzleSolver<long>
         return optimizedRanges;
     }
     
-    private static IEnumerable<long> CountIdsInRanges(List<Range> combinedRanges)
+    private static IEnumerable<long> CountIdsInRanges(IEnumerable<Range> combinedRanges)
     {
         var countIdsInRanges = combinedRanges.Select(range => range.to - range.from + 1);
         return countIdsInRanges;