Given therootof 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 the sum of all keys greater than the original key in BST. As a reminder, abinary search treeis a tree that satisfies these constraints...
如果是允许修改原来的tree则: #Definition for a binary tree node.#class TreeNode(object):#def __init__(self, x):#self.val = x#self.left = None#self.right = NoneclassSolution(object):defconvertBST(self, root):""":type root: TreeNode :rtype: TreeNode"""use right->root->left order...
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...
LeetCode-Convert BST to Greater Tree Description: 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 Sea...
Can you solve this real interview question? Convert Sorted List to Binary Search Tree - Given the head of a singly linked list where elements are sorted in ascending order, convert it to a height-balanced binary search tree. Example 1: [https://asse
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 1 2 3 输出:大树的根,如下所示: 18 / \ 20 13 1 2 3 本次...
LeetCode 109. Convert Sorted List to BST 简介:给定一个链表,其中元素按升序排序,将其转换为高度平衡的BST。对于这个问题,高度平衡的二叉树被定义为:二叉树中每个节点的两个子树的深度从不相差超过1。 Description Given a singly linked list where elements are sorted in ascending order, convert it to a ...
538. Convert BST to Greater Tree* https://leetcode.com/problems/convert-bst-to-greater-tree/ 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 ...
LeetCode 538. Convert BST to Greater Tree(把BST每个节点的值都加上比它大的节点的值) 题意:把二叉查找树每个节点的值都加上比它大的节点的值。 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 /** * Definition for a binary tree node....
利用好BST的特性,解起来并不难 1/**2* Definition for a binary tree node.3* public class TreeNode {4* int val;5* TreeNode left;6* TreeNode right;7* TreeNode(int x) { val = x; }8* }9*/10publicclassSolution {11privateintsum = 0;12publicTreeNode convertBST(TreeNode root) {13if...