Answer 1

If you are talking about C++, you could return an initializer list, an array, a tuple, a pair, a vector and much more. Example:

std::pair<int, int> f(int x) {
return std::make_pair(x, x * x);
}

In python you could return the values on a tuple, array, dict and more. Example:

def f(x):
return (x, x * x)

Generally, you need to return the values inside a container.