#include<iostream.h>
 #include<conio.h>

 void swap(int &,int &);

 main()
    {
       clrscr();


       int value_1;
       int value_2;

       cout<<"\n Enter the value_1 =  ";
       cin>>value_1;

       cout<<"\n Enter the value_2 =  ";
       cin>>value_2;

       cout<<"\n *********  Before Swap()  ********"<<endl;

       cout<<"\n\t Value_1 =  "<<value_1<<endl;
       cout<<"\t Value_2 =  "<<value_2<<endl;

       cout<<"\n *********  After Swap()  ********"<<endl;

       swap(value_1,value_2);

       cout<<"\n\t Value_1 =  "<<value_1<<endl;
       cout<<"\t Value_2 =  "<<value_2<<endl;


       getch();
       return 0;
    }

 /*************************************************************************///---------------------------  swap(int &,int &)  -----------------------///*************************************************************************/void swap(int &x,int &y)
    {
       int temp;

       temp=x;
       x=y;
       y=temp;
    }