Darbar 272 — The K Weakest Rows In A Matrix

Easy

Darbar · Heap

Catalog slot 272 of 548 (source id 772). Topic heap / matrix.

Solve on LeetCode: The K Weakest Rows In A Matrix. 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: array / binary search, heap / binary search, heap / sorting, searching and sorting / binary search.

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_272.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

• Find Kth Largest Xor Coordinate Value · medium
• Kth Smallest Element In A Sorted Matrix · medium
• Path With Minimum Effort · medium
• Get Biggest Three Rhombus Sums In A Grid · medium

Heap index · Darbar hub

Darbar slot 272 of Tensor-to-Tenant · Previous · Next.