2015年2月28日
【Leetcode】【Medium】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 @ 2015-02-28 10:11 胡潇 阅读(176) 评论(0) 推荐(0) 编辑