#include "stdafx.h"
#include <iostream>
void Swap(int &num1, int &num2)
{
int temp = 0;
temp = num1;
num1 = num2;
num2 = temp;
return;
}
int main()
{
using namespace std;
int num1 = 10;
int num2 = 20;
cout << "Before : " << num1 << ", " << num2 << endl;
Swap(num1, num2);
cout << "After : " << num1 << ", " << num2 << endl;
return 0;
}