Darbar 471 — Number Of Substrings Containing All Three Characters
Medium
Darbar · String
Catalog slot 471 of 548 (source id 371). Topic string / sliding window.
Solve on LeetCode: Number Of Substrings Containing All Three Characters. 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: Mock and personal gauntlet (weeks 91-108, slots 471-548). Warmup: Two-problem blocks (45 min). Exam: Full mock interviews scored on a rubric.
Also filed under: hash table / sliding window.
Evidence (cookiecutter problem_471.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
- Substrings Of Size Three With Distinct Characters · easy
- Longest Nice Substring · easy
- Maximum Number Of Vowels In A Substring Of Given Length · medium
- Maximize The Confusion Of An Exam · medium
Darbar slot 471 of Tensor-to-Tenant · Previous · Next.