// C++ program to illustrate the begin and end iterator
#include <iostream>
#include <map>
#include <string>
using namespace std;

class functor1
{
   public:
	 void operator()( int& x1 )
	   {
		   cout << "Inside operator() : " << x1 << endl ;
		   x1++ ;
	   }

};

void function1( int& x1 )
  {
		   cout << "Inside function1() : " << x1 << endl ;
		   x1++ ;
  }


int main()
{
    functor1 functor1Object ;
    int y1 = 10 ;
    functor1Object( y1 ) ;
    cout << "y1: " << y1 << endl ;

    function1( y1 ) ;
    cout << "y1: " << y1 << endl ;

	return 0;
}