Exclusive OR

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
    bool p,q;
    p = true;
    q = true;

    cout << p << " XOR " << q << " is "
         << ((p || q) && !(p && q)) << "\n";

    p = true;
    q = false;

    cout << p << " XOR " << q << " is "
         << ((p || q) && !(p && q)) << "\n";

     p = false;
     q = false;

     cout << p << " XOR " << q << " is "
          << ((p || q ) && !(p && q)) << "\n";

    cin.get();
    return 0;
}