Hello, again.
This is not exactly a bug but I think it should be fixed. I'm currently doing the bonus task 1 (QUADR). In this task, there are two outputs for each set of inputs. The problem is, the order of expected outputs is somewhat arbitrary. I wrote an algorithm that returns the outputs in descending (or ascending) order and it didn't work. I guess there is an intended answer but the problem itself doesn't state anything about the order. I think it should be fixed in a way that clarifies the order.