C++

Hi /prog/

return 0; or not? \n or endl?

#include <iostream>
using namespace std;
int main()
{
    cout << "Hello World!" << endl;
    return 0;
}

#include <iostream>
using namespace std;
int main()
{
    cout << "Hello World!\n";
}

>>4
They don't realise this until they use Scheme and realise that (define x y) works for both variables and procedures, and that they are, in fact, the same thing.