Darbar 055 — Binary Tree Paths
Easy
Darbar · Backtracking
Catalog slot 55 of 548 (source id 1387). Topic backtracking / backtracking.
Solve on LeetCode: Binary Tree Paths. Do not treat this page as a statement dump.
Aligned T2T band: weeks 7–30. Start at Week 7. Full map: Darbar hub.
Pattern block: Timed routing (weeks 1-15, slots 1-120). Warmup: LeetCode-style easy problems (15 min each). Exam: Weekly timed block, 3-5 problems in 60 minutes.
Also filed under: string / backtracking.
Evidence (cookiecutter problem_055.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
- All Paths From Source To Target · medium
- Letter Tile Possibilities · medium
- Count Number Of Maximum Bitwise Or Subsets · medium
- Iterator For Combination · medium
Backtracking index · Darbar hub
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