Leetcode 236 二叉树的最近公共祖先 Lowest Common Ancestor Of A Binary Tree| Tree | Binary Tree | Recursive
Synopsis
Leetcode 236 解题思路： 从中间node开始思考1. 通过postorder traversal，询问左右subtree，是否有p或q。 2. 如果左右都有p或q ...
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