A few years ago I solved 200 LeetCode problems and still froze on Mediums I hadn't seen. The breakthrough wasn't another hundred problems. It was a different loop. A problem asks for the longest substring with at most K distinct characters. You've solved sliding window before. Maximum sum subarray of size K, done. Longest substring without repeating characters, done. This third one stalls you. Twe
Most people try to improve their lives without ever measuring how they actually feel. I used to do the same. Some days felt productive, others didn’t — but I had no way to understand why. So I decided to build something simple. Not another complex app. Just tools that answer one question: 👉 “How am I actually doing right now?” 🔹 What I Built I created a few simple tools: A happiness score calcul