Darbar 215 — Jewels And Stones
Easy
Darbar · Hash Table
Catalog slot 215 of 548 (source id 607). Topic hash table / simple hashing.
Solve on LeetCode: Jewels And Stones. 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: string / hashing.
Evidence (cookiecutter problem_215.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
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Darbar slot 215 of Tensor-to-Tenant · Previous · Next.