Sascha Peilicke

int fib(unsigned int n)
{
    if (n == 0) {
        return 0;
    } else if (n == 1) {
        return 1;
    } else {
@@        return fib(n - 1) + fib(n -2);
    }
}

int main(void)
{
    fib(5);
    fib(20);
    return 0;
}