Leetcode 48. Rotate Image My submissions Question (matrix rotation)

Title: Give a matrix, rotate it clockwise 90 °.

Problem Analysis: The Pass method is to transpose the matrix first, then reverse each line, or reverse each column first and then transpose it. I just want to say "It ' s amazing!". (Forgivig my poor english!)

The code is as follows (it doesn't matter how the code is written!) ）：

Class Solution {public:    void rotate (vector<vector<int>>& matrix) {        int r=matrix.size ();        int c=matrix[0].size ();        for (int. i=0;i<r;++i) {for            (int j=i+1;j<c;++j)                swap (matrix[i][j],matrix[j][i]);            for (int j=0,k=c-1;j<k;++j,--k)                swap (matrix[i][j],matrix[i][k]);}}    ;

　　

Leetcode 48. Rotate Image My submissions Question (matrix rotation)