- binary Tree Zigzag level order
- 103. Binary Tree Zigzag Level Or
- leetcode--binary-tree-zigzag-lev
- [leetcode] 103. Binary Tree Zigz
- Leetcode 103. Binary Tree Zigzag
- 103. Binary Tree Zigzag Level Or
- 103. Binary Tree Zigzag Level Or
- 103 Binary Tree Zigzag Level Ord
- 103. Binary Tree Zigzag Level Or
- 103 Binary Tree Zigzag Level Ord
Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and alternate between).
For example:Given binary tree[3,9,20,null,null,15,7],
3
/ \
9 20
/ \
15 7
return its zigzag level order traversal as:
[ [3], [20,9], [15,7] ]
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