c++ Vector数组

https://blog.csdn.net/weixin_43400806/article/details/124229091

 

创建二维矩阵

#include <vector>

int main() {
int m;
int n;
cin >> m >> n;
vector<vector<int>> vv(m, vector<int>(n)); //全初始化为0
for (int i = 0; i < vv.size(); i++) { //遍历矩阵
for (int j = 0; j<vv[0].size(); j++) {
cout << vv[i][j] << endl;
}
}
system("pause");
return 0;
}