Darbar 252 — Top K Frequent Elements

Medium

Darbar · Heap

Catalog slot 252 of 548 (source id 791). Topic heap / divide and conquer.

Solve on LeetCode: Top K Frequent Elements. Do not treat this page as a statement dump.

Aligned T2T band: weeks 31–45. Start at Week 31. Full map: Darbar hub.

Pattern block: Tree and graph fluency (weeks 31-45, slots 201-280). Warmup: Tree traversals and adjacency-list graph walks. Exam: Tree+graph block with one design flavored problem.

Also filed under: hash table / divide and conquer, heap / counting, heap / hashing.

Triangulation — Heap: Darbar speed is Top-K and scheduler problems; Forge depth is Heap invariants and adversarial streams; production artifact is Streaming Top-K / inference batching.

Evidence (cookiecutter problem_252.md)

1. Attempt log (approaches that failed)
2. Final complexity (time and space)
3. One mistake corrected
4. Production concept this slot reinforces

Personal dates and the CSV tracker stay in the learner journal.

Same subtopic

• K Closest Points To Origin · medium
• Kth Largest Element In An Array · medium
• Find Kth Largest Xor Coordinate Value · medium
• Sort An Array · medium

Heap index · Darbar hub

Darbar slot 252 of Tensor-to-Tenant · Previous · Next.