摘要:
Invert Binary Tree 翻转二叉树 /** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode() 阅读全文
posted @ 2021-04-21 09:35
WilliamCui
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摘要:
N-ary Tree Preorder Traversal N叉树前序遍历 给一个N叉树的root,返回其前序遍历 输入:root = [1,null,3,2,4,null,5,6] 输出:[1,3,5,6,2,4] /* // Definition for a Node. class Node { 阅读全文
posted @ 2021-04-21 09:30
WilliamCui
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