随笔分类 -  leetcode

[leetcode] Validate Binary Search Tree
摘要：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 n... 阅读全文
posted @ 2014-06-12 00:20 tanchao 阅读(123) 评论(0) 推荐(0)