leetcode

0 class Solution {

1 public:

2 vector<vector<int>> transpose(const vector<vector<int>> &matrix) const {

3 const int n = matrix.size(), m = matrix[0].size();

4 vector<vector<int>> res(m, vector(n, 0));

5 for (int i = 0; i < n; i++) {

6 for (int j = 0; j < m; j++) {

7 res[j][i] = matrix[i][j];

8 }

9 }

10 return res;

11 }

12 };