Making a square() function without x*x in C++

Question

I am self-studying C++ and the book \"Programming-Principles and Practices Using C++\" by Bjarne Stroustrup. One of the \"Try This\" asks this:

Implement square() wi

Answer 1

int square(int x)
{
    int result = 0;
    for (int counter = 0; counter < x; ++counter) result += x;
    return result;
}