diff --git a/reverseSubmatrix b/reverseSubmatrix
new file mode 100644
index 0000000..14ee320
--- /dev/null
+++ b/reverseSubmatrix
@@ -0,0 +1,15 @@
+class Solution {
+    public int[][] reverseSubmatrix(int[][] grid, int x, int y, int k) {
+        for (int i = 0; i < k / 2; i++) {
+            int topRow = x + i;
+            int bottomRow = x + k - 1 - i;
+            for (int j = 0; j < k; j++) {
+                int col = y + j;
+                int temp = grid[topRow][col];
+                grid[topRow][col] = grid[bottomRow][col];
+                grid[bottomRow][col] = temp;
+            }
+        }
+        return grid;
+    }
+}