2.7 Intvector

#include <string>#include <iostream>#include <fstream>#include <vector>using namespace std;int main(){vector <int> v;for (int i=0; i<10 ; i++)    v.push_back(i);for (int i=0; i< v.size() ; i++ )    cout << v[i] << " , ";cout << endl;for (int i = 0;i <v.size() ; i++)    v[i]=v[i]*10;for (int i=0;i< v.size() ; i++)    cout << v[i] << ",";cout << endl;}