Blind 75 is the classic short list for revising coding interviews in a few weeks. It covers the core patterns once, so it is the right place to start if you are short on time or getting back into interviews after a break.

Aim for two or three problems a day. Read the problem, give yourself 20 minutes to reach any working idea, then open the brute force, better and optimal approaches and compare them with your own. Tick a problem as solved only when you can code the optimal approach from scratch.

Add anything that felt shaky to your revision list and revisit it after three days and again after a week. When the list feels comfortable, move on to Pattern Wise 150 for depth.