program tukar bilangan

#include <cstdlib>
#include <iostream>
                     
using namespace std;
void tukar(int& A,int& B){
     int temp = A;
     A = B;
     B = temp;
}

int main(int argc, char *argv[])
{
    int bil1,bil2;
    cout<<"Masukkan bilangan 1:";cin>>bil1;
    cout<<"Masukkan bilangan 2:";cin>>bil2;
    tukar(bil1,bil2);
    cout<<"bilangan 1 ="<<bil1<<endl;
    cout<<"bilangan 2 ="<<bil2<<endl;
    system("PAUSE");
    return EXIT_SUCCESS;
}