[LeetCode]109. Convert Sorted List to Binary Search Tree 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.me/ 题目地址:https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree/description/ 题目描述: Given a s…
Question: Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node n…
一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. (二)解题 本题大意:给定一个单向链表,构造出平衡二叉搜索树 解题思路:参考[一天一道Leet…
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 Java解法 Python解法 日期 题目地址:https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/#/description 题目描述 Given an array where elements are sorted in ascending order,…
Problem: Given an array where elements are sorted in ascending order, convert it to a height balanced BST. Solution: 复习一下BST的基本性质:简而言之,对于BST中任意结点x,若其有左右结点 l 或 r ,需满足 l.key ≤ x.key ≤ r.key BST的性能(基本操作耗时)与树高成正比,可改进为较为高效的平衡二叉树,即保持整棵树左右均匀,任意左右子树高度差不大于1 如…
一天一道LeetCode 本系列文章已全部上传至我的github,地址:ZeeCoder's Github 欢迎大家关注我的新浪微博,我的新浪微博 欢迎转载,转载请注明出处 (一)题目 Given an array where elements are sorted in ascending order, convert it to a height balanced BST. (二)解题 题目大意:给定一个排好序的数组,将它转变成一个平衡二叉搜索数 解题思路:平衡二叉搜索树的中序遍历为升序数组…
原题地址: https://oj.leetcode.com/problems/convert-sorted-list-to-binary-search-tree/ 题目内容: Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 方法: 单纯.如何安排插入顺序,使得一棵二叉排序树接近平衡? 你从中间开始插嘛.这样左子树和右子树之差或…
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 涉及到二叉树的问题用递归的方法很容易理解.这个问题要求把一个升序排序的链表转换为一颗height balanced BST.转换的方式就是把链表的中间值作为树的根节点,中间值的左半部分转换为二叉树的左子树,中间值的右半部分转换为二叉树的右子树. 递归解决问题的步骤如下: 1. 如…
Given an array where elements are sorted in ascending order, convert it to a height balanced BST. For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node never differ by more th…
题目: Given a sorted (increasing order) array, Convert it to create a binary tree with minimal height. Example Given [1,2,3,4,5,6,7], return 4 / \ 2 6 / \ / \ 1 3 5 7 题解: Solution 1 () class Solution { public: TreeNode *sortedArrayToBST(vector<int> &a…