Used IntegerRange from HelperClasses in solutions for day 02

AoC_2025/Day02.cs

@@ -1,5 +1,6 @@
 using System.Text.RegularExpressions;
 using AdvenOfCode.Contracts;
+using AdventOfCode.HelperClasses;
 
 namespace AoC_2025;
 
@@ -47,8 +48,8 @@ public partial class Day02 : IPuzzleSolver<long>
 
     private IEnumerable<long> FindInvalidIds(string range)
     {
-        var (start, end) = Parse(range);
+        var ids = Parse(range);
-        var halvableIds = FindHalvableIds(start, end);
+        var halvableIds = FindHalvableIds(ids);
         var invalidIds = GetInvalidIds(halvableIds);
         return invalidIds;
     }
@@ -65,31 +66,30 @@ public partial class Day02 : IPuzzleSolver<long>
     
     private IEnumerable<long> FindAllInvalidIds(string range, Regex regex)
     {
-        var (start, end) = Parse(range);
+        var ids = Parse(range);
-        var invalidIds = Range(start, end)
+        var invalidIds = ids
             .Where(id => regex.IsMatch(id.ToString()));
         return invalidIds;
     }
     
     private IEnumerable<long> FindInvalidSegmentedIds(string range)
     {
-        var (start, end) = Parse(range);
+        var ids = Parse(range);
-        var idsAsAllSegments = GetIdAsAllSegments(start, end);
+        var idsAsAllSegments = GetIdAsAllSegments(ids);
         var invalidIdSegments = FindIdsWhereAllSegmentsAreEqual(idsAsAllSegments);
         var invalidIds = MergeSegments(invalidIdSegments);
         var invalidIdNumbers = invalidIds.Select(id => long.Parse(id));
         return invalidIdNumbers;
     }
 
-    private (long start, long end) Parse(string range)
+    private IntegerRange Parse(string range)
     {
         var parts = range.Split('-', StringSplitOptions.RemoveEmptyEntries);
-        return (long.Parse(parts[0]), long.Parse(parts[1]));
+        return new IntegerRange(long.Parse(parts[0]), long.Parse(parts[1]));
     }
 
-    private IEnumerable<string> FindHalvableIds(long start, long end)
+    private IEnumerable<string> FindHalvableIds(IntegerRange ids)
     {
-        var ids = Range(start, end);
         var idStrings = ids.Select(id => id.ToString());
         var halvableIds = idStrings.Where(id => (id.Length % 2) == 0);
         return halvableIds;
@@ -102,18 +102,9 @@ public partial class Day02 : IPuzzleSolver<long>
         var invalidNumberedIds = invalidIds.Select(id => long.Parse(id.Item1 + id.Item2));
         return invalidNumberedIds;
     }
-
-    private IEnumerable<long> Range(long start, long end)
-    {
-        for (var i = start; i <= end; i++)
-        {
-            yield return i;
-        }
-    }
     
-    private IEnumerable<IEnumerable<IEnumerable<string>>> GetIdAsAllSegments(long start, long end)
+    private IEnumerable<IEnumerable<IEnumerable<string>>> GetIdAsAllSegments(IntegerRange ids)
     {
-        var ids = Range(start, end);
         var idStrings = ids.Select(id => id.ToString());
         var idSegments = idStrings.Select(id => GetSegments(id));
         return idSegments;