2946. Matrix Similarity After Cyclic Shifts

2946. Matrix Similarity After Cyclic Shifts/Solution.cs

@@ -0,0 +1,19 @@
+public class Solution
+{
+    public bool AreSimilar(int[][] mat, int k)
+    {
+        var answer = true;
+        var shift = -k;
+        for (var i = 0; i < mat.Length; i++)
+        {
+            var len = mat[i].Length;
+            for (var j = 0; j < len; j++)
+            {
+                var idx = ((j + shift) % len + len) % len;
+                answer &= mat[i][j] == mat[i][idx];
+            }
+            shift = -shift;
+        }
+        return answer;
+    }
+}