lc 538 Convert BST to Greater Tree 538 Convert BST to Greater Tree Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original ke…

problem 538. Convert BST to Greater Tree 参考 1. Leetcode_easy_538. Convert BST to Greater Tree; 完…

Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary Search Tree like thi…

Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary Search Tree like thi…

Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary Search Tree like thi…

题目要求 Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. 题目分析及思路 题目给出一棵二叉搜索树,要求将它转成Greater Tree.定义Greater Tre…

题目如下: Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary Search Tree li…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 递归 日期 题目地址:https://leetcode.com/problems/convert-bst-to-greater-tree/description/ 题目描述 Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the…

给定一个二叉搜索树(Binary Search Tree),把它转换成为累加树(Greater Tree),使得每个节点的值是原来的节点值加上所有大于它的节点值之和.例如:输入: 二叉搜索树:              5            /   \           2     13输出: 转换为累加树:             18            /   \          20     13详见:https://leetcode.com/problems/convert-…

Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary Search Tree like thi…

Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary Search Tree like thi…

Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example Given a binary search Tree ｀{5,2,3}｀: 5 / \ 2 13…

Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary Search Tree like thi…

Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary Search Tree like thi…

Level:   Easy 题目描述: Given a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the original BST is changed to the original key plus sum of all keys greater than the original key in BST. Example: Input: The root of a Binary…

这是悦乐书的第255次更新,第268篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第122题(顺位题号是538).给定二进制搜索树(BST),将其转换为更大树,使原始BST的每个键都更改为原始键加上所有键的总和大于BST中的原始键.例如: 输入:二进制搜索树的根,如下所示: 5 / \ 2 13 输出:大树的根,如下所示: 18 / \ 20 13 本次解题使用的开发工具是eclipse,jdk使用的版本是1.8,环境是win7 64位系统,使用Java语言编写和测…

［抄题］: 给定二叉搜索树(BST),将其转换为更大的树,使原始BST上每个节点的值都更改为在原始树中大于等于该节点值的节点值之和(包括该节点). Given a binary search Tree `{5,2,13}｀: 5 / \ 2 13 Return the root of new tree 18 / \ 20 13 [暴力解法]: 时间分析: 空间分析: ［思维问题］: ［一句话思路］: 反向求和并把和赋给root.val ［输入量］:空: 正常情况:特大:特小:程序里处理到的特殊情…

https://www.cnblogs.com/grandyang/p/6591526.html 这个题本质上是中序遍历的反向.中序遍历是从小到大,而这个题目是从大到小,然后每个数加上比自己大的所有数的和. 因为实际上并没有改变树的结构,只是改变了原来树中节点的值,所以用void做返回值就可以了. 每次加sum实际上就是加的所有比当前节点大的数的和,并且这个和一定等于前一个节点的更新值. class Solution { public: TreeNode* convertBST(TreeNode…

1.题目描述 2.问题分析 使用一个vector将所有节点的值以升序排列.然后比较,求和,加上. 3.代码 TreeNode* convertBST(TreeNode* root) { if (root == NULL) return NULL; vector<int> v; inorder(root,v); increaseVal(root, v); return root; } void increaseVal(TreeNode *root, vector<int> &…

原文链接:http://blog.csdn.net/jarily/article/details/8679280 /****************************************** 数据结构: BST(Binary Search Tree),二叉查找树; 性质: 若结点的左子树不空,则左子树上所有结点的值均小于它的根结点的值; 若结点的右子树不空,则右子树上所有结点的值均大于它的根结点的值; 该结点的左.右子树也分别为二叉查找树; 遍历: 对于一个已知的二叉查找树,从小到大输…

Given a BST, transform it into greater sum tree where each node contains sum of all nodes greater than that node. 自己想的复杂了,其实就是一个反向的inorder.新的值就是前面所有元素的求和.…

The question and solution are from: http://www.geeksforgeeks.org/convert-given-binary-tree-doubly-linked-list-set-3/ Given a Binary Tree (BT), convert it to a Doubly Linked List(DLL) In-Place. The left and right pointers in nodes are to be used as pr…

http://www.geeksforgeeks.org/in-place-convert-a-given-binary-tree-to-doubly-linked-list/ Given a Binary Tree (Bt), convert it to a Doubly Linked List(DLL). The left and right pointers in nodes are to be used as previous and next pointers respectively…

二叉搜索树(Binary Search Tree)也叫二叉排序树或二叉查找树.它满足以下性质: 1.非空左子树的所有键值小于其根结点的键值: 2.非空右子树的所有键值大于其根结点的键值: 3.左右子树都是二叉搜索树.…

http://www.geeksforgeeks.org/in-place-convert-a-given-binary-tree-to-doubly-linked-list/ #include <iostream> #include <vector> #include <algorithm> #include <queue> #include <stack> #include <string> #include <fstrea…

http://www.geeksforgeeks.org/convert-an-arbitrary-binary-tree-to-a-tree-that-holds-children-sum-property/ #include <iostream> #include <vector> #include <algorithm> #include <queue> #include <stack> using namespace std; struc…

参考:Hello, Splay! 目录: 1. Binary Search Tree 2. Splay Tree…

本文由@呆代待殆原创,转载请注明出处:http://www.cnblogs.com/coffeeSS/ 二叉搜索树简介 顾名思义,二叉搜索树是以一棵二叉树来组织的,这样的一棵树可以用一个链表数据结构来表示,每个节点除了key和卫星数据(除了二叉树节点的基本数据以外人为添加的数据,这些数据和树的基本结构无关),还有left.right.parent,分别指向节点的左孩子.右孩子和父节点,如果对应的节点不存在则指向NIL节点(因为最简单的二叉搜索树中的NIL节点里并没有有用的信息,所以在实现的时候简…

因为在开始写这个博客之前,已经刷了100题了,所以现在还是有很多题目没有加进来,为了方便查找哪些没加进来,先列一个表可以比较清楚的查看,也方便给大家查找.如果有哪些题目的链接有错误,请大家留言和谅解,链多了会眼花.  # Title Category Difficulty  697  Degree of an Array  Algorithms  Easy  695  Max Area of Island  Algorithms  Easy  674  Longest Continuous In…

首先表达我对leetcode网站的感谢,与高校的OJ系统相比,leetcode上面的题目更贴近工作的需要,而且支持的语言广泛.对于一些比较困难的题目,可以从讨论区中学习别人的思路,这一点很方便. 经过一段时间的练习,我感觉自己的算法水平还是有很大的提升的.与学校开的算法导论的课程相比,我觉得实实在在的做题,比学习理论更符合我的认知方式.可能我属于那种脑子记不住,但是可以用“肌肉”去记忆的类型吧. 在做题的时候,我会尝试用感觉好玩的语言来写.如果把做题当成一种解谜游戏的话,那语言就是玩这个游戏选择…