Tackling a Hard-Level SQL Problem on HackerRank: A Deep Dive into Hackers’ Daily Submissions

Introduction

If you’ve ever wanted to test the limits of your SQL skills, HackerRank is a platform where you can do just that. Among the sea of problems available on the platform, some are tagged as ‘Hard,’ demanding not only a good understanding of SQL but also the ability to craft complex queries involving multiple layers of calculations and filtering. Today, we will dissect one such hard-level problem, a truly challenging SQL puzzle that could stump even…