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Leetcode 102. Binary Tree Level Order Traversal
Return the values of a binary tree grouped by depth, from left to right for each level (i.e., a level-order / breadth-first traversal). For an empty tree return an empty list.
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Early August, 2025
Meta
Senior
Late January, 2025
Meta
Staff
Mid September, 2024
Meta
Senior
BFS on Binary Tree
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