What are the best ways I can study for my C++ quiz?

I have an exam on Tuesday. It's mainly about 1D Arrays, functions and recursions. Are there any quiz sites that quiz your C++ knowledge that I can use to study? I can't use something like learncpp since I'm only allowed to use what I learned in class instead of using my own method (e.g why we're using recursions, which is just a worse for loop). Any help would be appreciated. Thank you.

https://redd.it/1p45sk1
@r_cpp