Access a vector using an iterator.
#include <iostream>
#include <vector>
using namespace std;

int main()
{
  vector<int> v;
  int i;

  for(i = 0; i <10; i++) 
     v.push_back(i);

  for(i = 0; i <10; i++) 
     cout << v[ i ] << " ";
  cout << endl;

  vector<int>::iterator p = v.begin();
  while(p != v.end()) {
    cout << *p << " ";
    p++;
  }

  return 0;
}