[LeetCode] 250. Count Univalue Subtrees 計算唯一值子樹的個數
:Given binary tree, return 4. 給一個二叉樹，求唯一值子樹的個數。唯一值 ...
原文：[LeetCode] 250. Count Univalue Subtrees 計數相同值子樹的個數
Given a binary tree, count the number of uni value subtrees. A Uni value subtree means all nodes of the subtree have the same value. Example : 這道題讓我們求相同值子樹的個數，就是所有節點值都相同的子樹的個數，之前有道求最大 BST 子樹的題Largest ...
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