Reconstruct a Binary Tree from Preorder and Postorder Traversals
Company: ByteDance
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: medium
Interview Round: Technical Screen
Overview: Reconstruct one deterministic binary tree from preorder and postorder traversals with distinct values. Preserve both traversals, attach an ambiguous single child on the left, and return a compact level-order representation with explicit missing children where needed.
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