Darbar 381 — Fibonacci Number

Easy

Darbar · Recursion

Catalog slot 381 of 548 (source id 1518). Topic recursion / recursion.

Solve on LeetCode: Fibonacci Number. 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: 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: dynamic programming / memoization, dynamic programming / tabular form.

Evidence (cookiecutter problem_381.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

• Reverse String · easy
• Reverse Linked List · easy
• Merge Two Sorted Lists · easy
• Palindrome Linked List · easy

Recursion index · Darbar hub

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