Vectors basics

// Example program
#include <iostream>
#include <string>
#include <vector>

using namespace std;
int main()
{
  vector <int> v(10);
  v[0]=10;
  v.push_back(7);
  cout << v[0] << " "<< v.back() << endl;
  cout << v[1] << " " << v.front() << endl;
  for(int i =0; i<10; i++)
  {
      v.at(i) = i*2;
  }
  for(int i =0; i<v.size(); i++)
  {
     cout << v.at(i) << endl;
  }
}