leetcode rotate-image矩阵数组顺时针90度旋转

找规律

public class Solution {
    public void rotate(int[][] matrix) {
        int n = matrix.length; 
        int res[][]=new int[n+1][n+1];
        for(int i=0;i<n;i++){
            for(int j=0;j<n;j++){
                res[i][j] = matrix[i][j];
            }
        }
        for(int i=0;i<n;i++){
            for(int j=0;j<n;j++){
                matrix[i][j]=res[n-1-j][i];
            }
        }
        
    }
}