A self-challenge started in 2025 to solve 5000 problems on AI (HackerRank), Data Structures & Algorithms (LeetCode, GeeksforGeeks), and SQL database problems. Solutions are in Java, Python, JavaScript ...
We calculate a 7-day rolling baseline and a Day-over-Day variance. In Utilities, this is the foundation for Leakage Detection and Peak Demand forecasting.
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