C/C++ Swap two integers using temp variable

//Program to swap two integers using temp variable
#include<iostream>
using namespace std;
int main()
{
    int a,b,temp;
    cout<<"\n enter A:";
    cin>>a;
    cout<<"\n enter B:";
    cin>>b;
    cout<<"\n Before swapping";
    cout<<"\n A:"<<a<<"\t B:"<<b;
    temp=a;
    a=b;
    b=temp;
    cout<<"\n After swapping";
    cout<<"\n A:"<<a<<"\t B:"<<b<<endl;
return 0;
}