[LeetCode] 98. Validate Binary Search Tree 验证二叉搜索树
Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node ...
原文：LeetCode第[98]题(Java)：Validate Binary Search Tree（验证二叉搜索树）
题目：验证二叉搜索树 难度：Medium 题目内容： Given a binary tree, determine if it is a valid binary search tree BST . Assume a BST is defined as follows: The left subtree of a node contains only nodes with keysless tha ...
2018-05-30 17:00 1 1822 推荐指数：
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