3643. Flip Square Submatrix Vertically

/**
 * Problem: LeetCode 3643 - Flip Square Submatrix Vertically
 * Difficulty: Easy
 * Language: Java
 * Author: CodeByTushu
 */
class Solution {
    public int[][] flipSubmatrix(int[][] grid, int x, int y, int k) {
        int top = x;
        int bottom = x + k - 1;

        while (top < bottom) {
            for (int j = y; j < y + k; j++) {
                int temp = grid[top][j];
                grid[top][j] = grid[bottom][j];
                grid[bottom][j] = temp;
            }
            top++;
            bottom--;
        }

        return grid;
    }
}

"""
Problem: LeetCode 3643 - Flip Square Submatrix Vertically
Difficulty: Easy
Language: Python
Author: CodeByTushu
"""
class Solution:
    def flipSubmatrix(self, grid: list[list[int]], x: int, y: int, k: int) -> list[list[int]]:
        top = x
        bottom = x + k - 1

        while top < bottom:
            for j in range(y, y + k):
                grid[top][j], grid[bottom][j] = grid[bottom][j], grid[top][j]
            top += 1
            bottom -= 1

        return grid

/**
 * Problem: LeetCode 3643 - Flip Square Submatrix Vertically
 * Difficulty: Easy
 * Language: C++
 * Author: CodeByTushu
 */
#include <vector>
#include <algorithm>

using namespace std;

class Solution {
public:
    vector<vector<int>> flipSubmatrix(vector<vector<int>>& grid, int x, int y, int k) {
        int top = x;
        int bottom = x + k - 1;

        while (top < bottom) {
            for (int j = y; j < y + k; ++j) {
                swap(grid[top][j], grid[bottom][j]);
            }
            top++;
            bottom--;
        }

        return grid;
    }
};

/**
 * Problem: LeetCode 3643 - Flip Square Submatrix Vertically
 * Difficulty: Easy
 * Language: JavaScript
 * Author: CodeByTushu
 */
var flipSubmatrix = function(grid, x, y, k) {
    let top = x;
    let bottom = x + k - 1;

    while (top < bottom) {
        for (let j = y; j < y + k; j++) {
            const temp = grid[top][j];
            grid[top][j] = grid[bottom][j];
            grid[bottom][j] = temp;
        }
        top++;
        bottom--;
    }

    return grid;
};