A high-performance, production-grade backend for a competitive programming platform. Built on Node.js + Express, with a fully asynchronous online judge, Redis-backed job queue, Elo-like rating system, ...

It will prompt you for your MySQL root password. After logging in, you can copy and paste the SQL commands below. (Note: Many questions in your assignment are identical. For example, Q3 & Q4, Q5 & Q6, ...