cpp38 pointers....swapping the no. using pointers

#include <iostream>

using namespace std;

void swap(int *a,int *b){
    int temp= *a;
    *a=*b;
    *b=temp;
}




int main()
{
    int a,b;
    cin>>a>>b;
    swap(&a,&b);
    cout<<a<<" "<<b;

    return 0;
}