I Built an AI That Teaches You DSA Through Faded Parsons Problems and Spaced Repetition

By Prateek So I've been deep in this project for a while now and I keep getting asked "what exactly does it do?" by friends, and I keep giving this rambling five-minute answer that never quite lands. So here's the written version. Maybe this one will stick. The short version: I built a learning platform called PatternMaster that generates DSA lessons on demand, turns them into flashcards, and then makes you actually recall the material through faded Parsons problems, spaced repetition, and games. It also does visualizations. And it has a zombie shooter. I'll explain all of that. But first — why? The Problem With How I Was Learning DSA I spent a lot of time watching NeetCode videos. Great videos. Genuinely. But I started noticing a pattern: I'd watch the explanation, follow along, understand every step perfectly, and then open a blank editor and... nothing. The information was there but it wasn't mine. I hadn't really built anything in my head — I'd just borrowed his mental model for 20