Darbar 385 — Count Negative Numbers In A Sorted Matrix
Easy
Darbar · Searching And Sorting
Catalog slot 385 of 548 (source id 1100). Topic searching and sorting / binary search.
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: Advanced and interview fusion (weeks 61-90, slots 361-470). Warmup: Classic DP and greedy patterns. Exam: Mixed 4-problem block mirroring a real interview.
Also filed under: array / binary search, array / matrix.
Evidence (cookiecutter problem_385.md)
- Attempt log (approaches that failed)
- Final complexity (time and space)
- One mistake corrected
- Production concept this slot reinforces
Personal dates and the CSV tracker stay in the learner journal.
Same subtopic
- Find Target Indices After Sorting Array · easy
- The K Weakest Rows In A Matrix · easy
- Peak Index In A Mountain Array · easy
- Intersection Of Two Arrays · easy
Searching And Sorting index · Darbar hub
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