Darbar 203 — How Many Numbers Are Smaller Than The Current Number
Easy
Darbar · Hash Table
Catalog slot 203 of 548 (source id 665). Topic hash table / counting.
Solve on LeetCode: How Many Numbers Are Smaller Than The Current Number. 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: 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 / hashing, array / sorting, hash table / sorting, searching and sorting / sorting.
Evidence (cookiecutter problem_203.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
- Number Of Good Pairs · easy
- Count Number Of Pairs With Absolute Difference K · easy
- Increasing Decreasing String · easy
- Check If All Characters Have Equal Number Of Occurrences · easy
Darbar slot 203 of Tensor-to-Tenant · Previous · Next.