题解 | 矩阵转置

#include <iostream>
#include <vector>
using namespace std;

int main() {
    int n, m;
    cin >> n >> m;
    vector<vector<int>> shuzu(n, vector<int> (m));
    vector<vector<int>> b(m, vector<int> (n));
    for (int i = 0; i < n; i++){
        for (int j = 0; j < m; j++){
            cin >> shuzu[i][j];
            b[j][i] = shuzu[i][j];
        }
    }
    for (int i = 0; i < m; i++){
        for (int j = 0; j < n; j++){
            cout << b[i][j] << " ";
        }
        cout << endl;
    }
    return 0;
}
// 64 位输出请用 printf("%lld")