[LeetCode] Symmetric Tree
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary tree is symmetric ...
原文：leetcode: Symmetric Tree
判斷一棵樹是否對稱，如果對稱，中序遍歷的結果一定也是對稱的。 看了一下別人的代碼，也可以在遞歸的過程中直接去判斷。 ...
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原題地址：https://oj.leetcode.com/problems/symmetric-tree/ 題意：判斷二叉樹是否為對稱的。 Given a binary tree, check whether it is a mirror of itself (ie, symmetric ...
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