The Priority Queue: My Jedi Training with Heaps (opens in new tab)

The Quest Begins (The "Why") Honestly, I used to dread interview questions that asked for “the top K frequent elements” or “merge K sorted lists.” I’d reach for a naive solution—sort the whole array, or shove everything into a list and repeatedly scan for the minimum. The code worked, but it felt like using a lightsaber to cut butter: overkill, slow, and honestly a little embarrassing when the interviewer raised an eyebrow. One rainy afternoon, stuck on a LeetCode problem that timed out at 2 ...