Implementing 2-d array using STL vector c++

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

int main() {
    int row = 10, column = 20, initial = 0;
    cin>>row>>column>>initial;
    vector<vector<int> > v(row, vector<int>(column,initial));
    for (int i = 0;i<row;i++) {
        cout<<endl;
        for (int j = 0; j< column; j++) {
            cout<<v[i][j]<<" ";
        }
    }
   
    // your code goes here
    return 0;
}