Darbar 514 — Sum Of Distances In Tree
Hard
Darbar · Trees
Catalog slot 514 of 548 (source id 602). Topic trees / dp based.
Solve on LeetCode: Sum Of Distances In Tree. 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.
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_514.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 Subtrees With Max Distance Between Cities · hard
- Binary Tree Cameras · hard
- Maximum Sum Bst In Binary Tree · hard
- Binary Tree Maximum Path Sum · hard
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