refactor day 8

KaterynaKateryna · Dec 8, 2024 · d09ccc5 · d09ccc5
1 parent e01f596
commit d09ccc5
Showing 1 changed file with 9 additions and 4 deletions.
diff --git a/AdventOfCode/Day08.cs b/AdventOfCode/Day08.cs
@@ -76,8 +76,8 @@ private List<Point> GetAntinodes(Point a, Point b)
     {
         List<Point> result = new List<Point>();
 
-        var antinodeOne = new Point(2 * b.I - a.I, 2 * b.J - a.J);
-        var antinodeTwo = new Point(2 * a.I - b.I, 2 * a.J - b.J);
+        var antinodeOne = GetAntinode(a, b, 2);
+        var antinodeTwo = GetAntinode(b, a, 2);
 
         if (IsWithinBounds(antinodeOne))
         { 
@@ -104,17 +104,22 @@ private List<Point> GetAntinodesUpdatedOneDirection(Point a, Point b)
         List<Point> result = new List<Point>();
 
         int n = 1;
-        var antinode = new Point(n * b.I - (n - 1) * a.I, n * b.J - (n - 1) * a.J);
+        var antinode = GetAntinode(a, b, n);
         while (IsWithinBounds(antinode))
         {
             result.Add(antinode);
             n++;
-            antinode = new Point(n * b.I - (n - 1) * a.I, n * b.J - (n - 1) * a.J);
+            antinode = GetAntinode(a, b, n);
         }
 
         return result;
     }
 
+    private Point GetAntinode(Point a, Point b, int n)
+    { 
+        return new Point(n * b.I - (n - 1) * a.I, n * b.J - (n - 1) * a.J);
+    }
+
     private bool IsWithinBounds(Point point)
     { 
         return point.I >= 0 && point.I < _input.Length