The frustrating part was that I recognized the problem. I’d seen the approach before. But understanding the solution when it was in front of me wasn’t the same as writing it with someone waiting. That gap is what I’m trying to address with AlgoDrill. You rebuild solutions from memory, get explanations for each line, and revisit problems with spaced repetition. The video shows what that looks like. It’s free to start, with paid access to the full library: https://algodrill.io When you forget a problem you’ve already solved, what usually disappears first: the approach, the implementation details, or both?   submitted by   /u/purplecow9000 [link]   [comments]