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leetcode 98. Validate Binary Search Tree
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...
分类:其他好文   时间:2015-02-18 11:45:52    阅读次数:129
[LeetCode] Convert Sorted List to Binary Search Tree 将有序链表转为二叉搜索树
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.这道题是要求把有序链表转为二叉搜索树,和之前那道Convert Sorted Ar...
分类:其他好文   时间:2015-02-18 08:24:13    阅读次数:160
[LeetCode] Convert Sorted Array to Binary Search Tree 将有序数组转为二叉搜索树
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.这道题是要将有序数组转为二叉搜索树,所谓二叉搜索树,是一种始终满足左 &num) { ret...
分类:编程语言   时间:2015-02-17 15:18:17    阅读次数:201
leetcode 109. Convert Sorted List to Binary Search Tree
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.[Solution] 1 TreeNode *sortedListToBST(Li...
分类:其他好文   时间:2015-02-16 11:37:14    阅读次数:126
[LeetCode]Binary Search Tree Iterator
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST. Calling next() will return the next smallest number in the BST. Note...
分类:其他好文   时间:2015-02-15 18:12:12    阅读次数:175
【数据结构】第9章 查找! (二叉搜索树BST AVL树 B-(+)树 字典树 HASH表)
难产的笔记。。。本来打算用1天 结果前前后后拖了5天§9.1 静态查找表9.1.1 顺序表的查找各种扫 自己脑补吧 复杂度O(n)9.1.2 有序表的查找若表是单调的,则可以利用二分查找。复杂度O(logn)9.1.3 静态树表的查找见 http://blog.csdn.net/area_52/article/details/437958379.1.4 索引顺序表的查找建立索引表查找§9.2...
分类:其他好文   时间:2015-02-15 16:35:32    阅读次数:238
leetcode 108. Convert Sorted Array to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.[Solution] 1 TreeNode *sortedArrayToBST(vector &num) ...
分类:其他好文   时间:2015-02-14 22:27:21    阅读次数:220
数据结构复习(1)bst
平衡树treap:(1)树+堆。具体是随机某个节点的值,然后维护这个值满足堆的性质。(2)代码实现sbt:(1)陈大神的节点大小平衡树,其实就是根据四种情况进行调整,而这四种情况也是其他bst会使用的调整方式。中心思想就是当节点信息变时,用maintain调整(2)代码实现procedure mai...
分类:其他好文   时间:2015-02-13 22:26:01    阅读次数:181
[LeetCode]Convert Sorted List to Binary Search Tree
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. Example Tags Expand  Recursion Linked List 解题思路: 思路一:平衡树调整。第一步建立一个单向树...
分类:其他好文   时间:2015-02-11 14:47:17    阅读次数:139
Leetcode:Unique Binary Search Trees
Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example, Given n = 3, there are a total of 5 unique BST's. 1 3 3 2 1 \ ...
分类:其他好文   时间:2015-02-10 01:57:18    阅读次数:121
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