#include<iostream>
#include<conio.h>
using namespace std;
int a,b;
void swap(int &c,int &d)
{
int t;
t=c;
c=d;
d=t;
}
void swap2(int c,int d)
{
int t;
t=c;
c=d;
d=t;
}
int main()
{
int a,b;
cout<<endl<<endl;
cout<<"*****************************************************************************";
cout<<endl<<endl;
cout<<"ENTER TWO NUMBERS:";
cin>>a>>b;
swap2(a,b);
cout<<"\nOutput when numbers passed by call by value method:"<<a<<" "<<b<<endl
<<"i.e Changes in variables of functons are not reflected in actual variables.";
swap(a,b);
cout<<"Output when numbers passed by call by reference method:"<<a<<" "<<b<<endl
<<"i.e Changes in variables of functons are reflected in actual variables.";
cout<<"\n*****************************************************************************";
getch();
return 0;
}