#include <vector>
#include <iostream>

using namespace std;

int main () {
  vector<int> v;

  v.push_back(1);
  v.push_back(2);
  v.push_back(4);

  cout << "Dimensione v " << v.size() << endl;

  cout << "primo elemento " << v[0] << " secondo " << v[1] << endl;

  for (unsigned int i = 0; i<v.size() ; ++i ) {
    cout << "v[" << i << "] = "<< v[i] << endl;
  }

  v.pop_back();

  cout << "Dimensione v " << v.size() << endl;

  for ( vector<int>::const_iterator iv=v.begin(); iv!=v.end(); ++iv ) {
    cout << "V " << (*iv) << endl;
  }

}