Interschimbarea valorilor

#include <iostream>

using namespace std;

int main()
{
    int a, b, c;
    cout<<"a="; cin>> a;
    cout<<"b="; cin>> b;

    c=a;
    a=b;
    b=c;
    cout<< "a="<< a << ";"<<endl;
    cout<< "b="<< b << ";"<<endl;

    return 0;
}