Darbar 200 — Missing Number
Easy
Darbar · Hash Table
Catalog slot 200 of 548 (source id 691). Topic hash table / bit manipulation.
Solve on LeetCode: Missing 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: State machines and simulations (weeks 16-30, slots 121-200). Warmup: Simulation and state-transition drills. Exam: 2-3 state-machine problems in 60 minutes.
Also filed under: bit manipulation / hashing.
Evidence (cookiecutter problem_200.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
- Count The Number Of Consistent Strings · easy
- Divide Array Into Equal Pairs · easy
- Set Mismatch · easy
- Count Triplets That Can Form Two Arrays Of Equal Xor · medium
Darbar slot 200 of Tensor-to-Tenant · Previous · Next.