Refactor Day07 to extract node visited count update logic

AoC_2025/Day07.cs

@@ -71,12 +71,7 @@ public class Day07 : IPuzzleSolver<long>
     {
         if (current.x >= grid.Length || nodeCountVisited.ContainsKey(current))
         {
-            var addAmount = nodeCountVisited.GetValueOrDefault(current, 1);
-            foreach (var node in path)
-            {
-                nodeCountVisited[node] += addAmount;
-            }
-
+            nodeCountVisited = UpdateNodeVisitedCounts(current, path, nodeCountVisited);
             return nodeCountVisited;
         }
 
@@ -89,10 +84,19 @@ public class Day07 : IPuzzleSolver<long>
             var resRight = GetNodesTraversedWitTimelineCount(grid, (current.x, current.y + 1), [..path], resLeft);
             return resRight;
         }
-        else
+
+        var res = GetNodesTraversedWitTimelineCount(grid, (current.x + 1, current.y), [..path], nodeCountVisited);
+        return res;
+    }
+
+    private static Dictionary<Coordinate, long> UpdateNodeVisitedCounts(Coordinate current, HashSet<Coordinate> path, Dictionary<Coordinate, long> nodeCountVisited)
+    {
+        var addAmount = nodeCountVisited.GetValueOrDefault(current, 1);
+        foreach (var node in path)
         {
-            var res = GetNodesTraversedWitTimelineCount(grid, (current.x + 1, current.y), [..path], nodeCountVisited);
-            return res;
+            nodeCountVisited[node] += addAmount;
         }
+
+        return nodeCountVisited;
     }
 }