Darbar 028 — Count Negative Numbers In A Sorted Matrix

Easy

Darbar · Array

Catalog slot 28 of 548 (source id 272). Topic array / matrix.

Solve on LeetCode: Count Negative Numbers In A Sorted Matrix. Do not treat this page as a statement dump.

Aligned T2T band: weeks 1–6. Start at Week 1. Full map: Darbar hub.

Pattern block: Timed routing (weeks 1-15, slots 1-120). Warmup: LeetCode-style easy problems (15 min each). Exam: Weekly timed block, 3-5 problems in 60 minutes.

Also filed under: array / binary search, searching and sorting / binary search.

Evidence (cookiecutter problem_028.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.

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Array index · Darbar hub

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