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…
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…
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,…
4 WAs, a TLE, a new pattern, and the one habit that's been costing me every contest. I saw a Leetcode profile recently — 130 days, 1900 rating, no prior…