LeetCode 0114 - Flatten Binary Tree to Linked List

Parent index: LeetCode 500 Problem Index MOC

Problem Metadata

• LeetCode URL: https://leetcode.com/problems/flatten-binary-tree-to-linked-list/
• Frontend ID: 114
• Difficulty: Medium
• Primary category: Linked Lists
• Source lists: Top Interview 150, Top 100 Liked

Related Algorithms

• Linked Lists
• Binary Tree
• Tree Traversals
• Singly Linked List
• Stack
• Depth-First Search

Research Status

• Problem statement and constraints verified against the LeetCode page.
• Core algorithm explained in paper-style prose.
• Worked examples, edge cases, complexity proof, and pitfalls added.
• Solution variants linked back to the relevant algorithm notes.

See Also

• LeetCode 500 Problem Index MOC
• SWE Interview Preparation MOC