Dec Course 2021 Diagnostic Test (0/500)

Diagnostic test for Dec Course 2021. We will be determining intermediate and elementary class from this test. Problems are almost all arranged in what I believe to be the difficulty order. However, as the problems cover a wide range of topics, your difficulty order may differ from mine. Please read and attempt all questions. For the C++ I/O users, don't forget your "ios_base::sync_with_stdio(false); cin.tie(NULL);" I've heard that at least one of the problems might be impossible to get full credit on if you forget those two lines :)