Stacks go LIFO, queues go FIFO, and somewhere in the chaos, your job scheduler just rage-quit. Let’s cut the fluff and decode the real-world uses (and abuses) of these core data structures.

About This Series We’ve all been there—grinding LeetCode, memorizing tree traversals, and pretending to care about Red-Black Trees because some Big Tech interviewer insists they’re “fundamental.” But here’s the reality: 99% of the time, you’re just using Lists, Arrays, and HashMaps—and that’s fine.

Dive beyond the typical interview prep and explore how choosing the right data structures—like arrays, lists, and spans—can revolutionize your coding efficiency. This series offers real-world insights, practical benchmarks, and a touch of humour to enhance your development skills.