Darbar 405 — Construct Binary Search Tree From Preorder Traversal

Medium

Darbar · Stack

Catalog slot 405 of 548 (source id 138). Topic stack / divide and conquer.

Solve on LeetCode: Construct Binary Search Tree From Preorder Traversal. 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: stack / hashing.

Evidence (cookiecutter problem_405.md)

1. Attempt log (approaches that failed)
2. Final complexity (time and space)
3. One mistake corrected
4. Production concept this slot reinforces

Personal dates and the CSV tracker stay in the learner journal.

Same subtopic

• Maximum Binary Tree · medium

Stack index · Darbar hub

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