GoLang Solution For LeetCode Problem: Binary Tree Level Order Traversal II
Solving Binary Tree Level Order Traversal II in go. Please try yourself first to solve the problem and submit your implementation to LeetCode before looking into solution.
Problem Description
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root).
For example: Given binary tree [3,9,20,null,null,15,7],
3
/ \
9 20
/ \
15 7
return its bottom-up level order traversal as:
[
[15,7],
[9,20],
[3]
]
See the full details of the problem Binary Tree Level Order Traversal II at LeetCode
Originally posted at: @github.com/halfrost/LeetCode-Go
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