Unnamed
public cpp v1 · immutable#include <iostream>#include <vector>#include <algorithm>#include <cstring>using namespace std;int main(){ vector <vector <int> > matrix; for (int r=0; r<3; r++) vector <int> dummy; matrix.push_back(dummy); for(int c=0;c<3;c++) matrix[r].push_back(1); for (int r=0;r<3;r++) for (int c=0;c<3;c++) cout<<matrix[r][c]; return(0);}