Binary Tree Traversal and Transformation Techniques in Java
Level-order Traversal of Binary Trees
Given the root of a binary tree, return its nodes' values in level order from left to right.
Constraints:
Node count: 0–2000
Node value range: -1000 to 1000
Approach: Perform breadth-first traversal using a queue. Collect nodes of each depth into a separate list before proceeidng to the next level.
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Posted on Tue, 27 Oct 2026 16:47:22 +0000 by dm404