More on Vector Manipulation

This is slightly advanced vector manipulation program

//Program tested on Microsoft Visual Studio 2008 - Zahid Ghadialy
//This program shows advanced vector manipulation
#include<iostream>
#include<vector>

using namespace std;

//This method prints the vector
void printer(vector<int> v)
{
  unsigned int i;
  cout << "Size = " << v.size() << endl;
  cout << "Contents = ";
  for(i = 0; i <v.size(); i++)
     cout<<v[i]<<"   ";
  cout<<endl;
}

//Overloaded method same as above but takes pointers
void printer(vector<int*> v)
{
  unsigned int i;
  cout << "\nOverloaded Method " << endl;
  cout << "Size = " << v.size() << endl;
  cout << "Contents = ";
  for(i = 0; i <v.size(); i++)
     cout<<*v[i]<<"   ";
  cout<<endl;
}

int main()
{
  vector<int> v1(5, 1);
  cout<<"** Original **"<<endl;
  printer(v1);

  unsigned int i;
  //Modifying the list above
  for(i = 0; i < v1.size(); i++)
    v1[i] = i + 3;
  cout<<"\n** Modified **"<<endl;
  printer(v1);

  vector<int>::iterator it;
  //Inserting in the list after the first element '0' and after the 4th elem '9 9 9 9'
  it = v1.begin();
  it += 1;
  v1.insert(it,0);
  it = v1.begin(); //Crash if you dont do this
  it += 5; //Because we inserted '0', 4th element has become 5th.
  v1.insert(it, 4, 9);
  cout<<"\n** After Insert **"<<endl;
  printer(v1);

  //Testing Pop back - removes element from the end
  v1.pop_back();
  v1.pop_back();
  cout<<"\n** After couple of Pop back's **"<<endl;
  printer(v1);

  //New Vector
  cout<<endl<<"\n**********  NEW  *************"<<endl;
  vector<int*> v2;
  int *a=new int(5);
  int *b=new int(6);
  int *c=new int(7);
  int *d=new int(11);
  v2.push_back(a);
  v2.push_back(b);
  v2.push_back(c);
  printer(v2);
  cout<<"\ntwo pop_back and a push_back"<<endl;
  v2.pop_back();
  v2.pop_back();
  v2.push_back(d);
  printer(v2);
  cout<<"\nClear Vector two"<<endl;
  v2.clear();
  printer(v2);

  return 0;
}

The output is as follows: