#include <iostream>
#include <vector>
using namespace std;

int main()
{

   // create a vector to store int
   vector<int> vec;
   int i1;

   // display the original size of vec
   cout << "vector size = " << vec.size() << ":" << vec.capacity()  << endl;

   // push 5 values into the vector
   for(i1 = 0; i1 < 5; i1++)
   {
      vec.push_back(i1);
   }

   // display extended size of vec
   cout << "extended vector size = " << vec.size() <<  ":" << vec.capacity()  <<  endl;

   // access 5 values from the vector
   for(i1 = 0; i1 < 5; i1++)
   {
      cout << "value of vec [" << i1 << "] = " << vec[i1] << endl;
   }

   // use iterator to access the values
   vector<int>::iterator iter = vec.begin();
   while( iter != vec.end())
   {
      cout << "value of v = " << *iter << endl;
      iter++;
   }

   return 0;
}