2015年7月30日
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 @ 2015-07-30 11:10 amazingzoe 阅读(133) 评论(0) 推荐(0)
Unique Binary Search Tree II ***
摘要： Givenn, generate all structurally uniqueBST's(binary search trees) that store values 1...n.For example,Givenn= 3, your program should return all 5 uni... 阅读全文
posted @ 2015-07-30 00:32 amazingzoe 阅读(130) 评论(0) 推荐(0)