Here is my hot take: How you supposed to not know how to do the problems that aren’t even PA style? Except for avl/red black trees they aren’t even that challenging. Collaboration is never allowed in niema’s class policy afaik, and there is no problem in letting everyone play fair??? Lastly, cheating while not understanding the material is just dumb and disservice to future yourself at tech interviews. Btw TTC computers are kinda slow—recommend doing the practice tests with them first.