LintCode:旋转图像

LintCode:旋转图像

public class Solution {
    /**
     * @param matrix: A list of lists of integers
     * @return: Void
     */
    public void rotate(int[][] matrix) {
        // write your code here
        int N = matrix.length;
        int[][] tmp = new int[N][N];
        for(int i=0; i<N; i++){
            for(int j=0; j<N; j++){
                tmp[i][j] = matrix[N-1-j][i];
            }
        }
        for(int i=0; i<N; i++){
            for(int j=0; j<N; j++){
                matrix[i][j] = tmp[i][j];
            }
        }
    }
}