first rated contest of the challenge Two solved, one WA, one lesson that will save me points in every future contest. Ten days of preparation. Graphs, binary search, sliding window,…
DP clicked Two days, six problems, one realization that changed how I see dynamic programming. Frog Jump — where it started coming backGrid problems and the moment something clicked I'll…
binary search in 3 days I couldn't get a single word in on day 1. Here's what actually changed. The real problem wasn't binary searchStart with something you can actually…
I finished the entire sliding window playlist in one day 12 problems, 4 patterns, one gap found. Honest day. Today felt different. Not because everything went perfectly — it didn't…
Shortest paths, Dijkstra, Bellman-Ford, MSTs, DSU — a lot covered, a little left. The graph section is almost done The hardest problem of the dayShortest path algorithmsThe bigger algorithms —…