题解 | #顺时针旋转矩阵#

import java.util.*;

public class Solution {
    public int[][] rotateMatrix(int[][] mat, int n) {
        int[][] result = new int[n][n];
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                result[i][j] = mat[n-j-1][i];
            }
        }
        return result;
    }
}