CS201 Introduction to Programming - SWAP function

#include <iostream>

using namespace std; //Allows computer to output data
void swap(int *, int *);
main() //main function begins
{
int x,y;

cout << "Value of X";
cin >> x;

cout << "\nValue of Y";
cin >> y;

swap(&x,&y);

cout << "\nValue of X" << x;
cout << "\nValue of Y" << y;

}//end of main function

void swap(int *a, int *b)
{
int tmp;

tmp=*a;
*a=*b;
*b=tmp;

cout << *a;
cout << *b;
}