[LeetCode] N-ary Tree Level Order Traversal N叉树层序遍历

Given an n-ary tree, return the level order traversal of its nodes‘ values. (ie, from left to right, level by level).

For example, given a 3-ary tree:

We should return its level order traversal:

[
     [1],
     [3,2,4],
     [5,6]
]

Note:

1. The depth of the tree is at most 1000.
2. The total number of nodes is at most 5000.

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[LeetCode] N-ary Tree Level Order Traversal N叉树层序遍历

原文：https://www.cnblogs.com/grandyang/p/9672233.html