using namespace std;

​

double Multi(double, double = 2);

​

int main(void)

{

    cout << Multi(3) << endl;       // Multi(3, 2)와 같음 : 3 * 3 

    cout << Multi(3, 3) << endl;    // 3 * 3 * 3

    cout << Multi(3, 4);            // 3 * 3 * 3 * 3

    return 0;

}

​

double Multi(double x, double n)

{

    double result = x;

    for (int i = 1; i < n; i++)

    {

        result *= x;

    }

    return result;

}