Darbar 490 — Merge Two Binary Trees
Easy
Darbar · Trees
Catalog slot 490 of 548 (source id 565). Topic trees / bfs based.
Solve on LeetCode: Merge Two Binary Trees. Do not treat this page as a statement dump.
Aligned T2T band: weeks 46–57. Start at Week 46. 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: trees / dfs based.
Triangulation — Trees: Darbar speed is Traversal, LCA, tree DP; Forge depth is Euler Tour, HLD, DSU on Tree; production artifact is Agent-execution forensics.
Evidence (cookiecutter problem_490.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
- Maximum Depth Of Binary Tree · easy
- Invert Binary Tree · easy
- Univalued Binary Tree · easy
- Average Of Levels In Binary Tree · easy
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