Solved an E problem for a division 4 contest recently, not in the contest itself, but in the gym. https://codeforces.me/gym/102942/submission/297188321 Came up with the logic pretty early, in the virtual contest itself actually, but was struggling to put it into code because of a basic mistake. Really weak in basics so where to start as a beginner? I was considering going through each and every documentation of python, looking at the tools available before learning some beginner methods like hashing and binary search. I would like recommendations please, on whether this is a good idea, or if there is a better one. Decided on PyPy3 as my interpreter, I won't be changing it.