[CareerCup] 4.1 Balanced Binary Tree 平衡二叉树

4.1 Implement a function to check if a binary tree is balanced. For the purposes of this question, a balanced tree is defined to be a tree such that the heights of the two subtrees of any node never differ by more than one.

LeetCode上的原题,请参见我之前的博客Balanced Binary Tree 平衡二叉树

时间: 2024-10-05 23:25:53

[CareerCup] 4.1 Balanced Binary Tree 平衡二叉树的相关文章

leetCode 110. Balanced Binary Tree 平衡二叉树

110. Balanced Binary Tree Given a binary tree, determine if it is height-balanced. 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 than 1. 题目大意: 判断一

[Leetcode] Balanced binary tree平衡二叉树

Given a binary tree, determine if it is height-balanced. 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 than 1. 题意:二叉树中以任意节点为父结点的两棵子树的深度差不超过1,为平衡二叉

Balanced Binary Tree 平衡二叉树

Given a binary tree, determine if it is height-balanced. 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 than 1. 求二叉树是否平衡,根据题目中的定义,高度平衡二叉树是每一个节点的两个字

110 Balanced Binary Tree 平衡二叉树

给定一个二叉树,确定它是高度平衡的.对于这个问题,一棵高度平衡二叉树的定义是:一棵二叉树中每个节点的两个子树的深度相差不会超过 1.案例 1:给出二叉树 [3,9,20,null,null,15,7]:    3   / \  9  20    /  \   15   7返回 true .案例 2:给出二叉树 [1,2,2,3,3,null,null,4,4]:       1      / \     2   2    / \   3   3  / \ 4   4返回 false .详见:ht

平衡二叉树(Balanced Binary Tree 或 Height-Balanced Tree)又称AVL树

平衡二叉树(Balanced Binary Tree 或 Height-Balanced Tree)又称AVL树 (a)和(b)都是排序二叉树,但是查找(b)的93节点就需要查找6次,查找(a)的93节点就需要查找3次,所以(b)的效率不高. 平衡二叉树(Balanced Binary Tree 或 Height-Balanced Tree)又称AVL树.它或者是一颗空树,或者是具有下列性质的二叉树:它的左子树和右子树的深度只差的绝对值不超过1.若将二叉树上节点的平衡因子BF(Balance F

LeetCode 110. Balanced Binary Tree 递归求解

题目链接:https://leetcode.com/problems/balanced-binary-tree/ 110. Balanced Binary Tree My Submissions Question Total Accepted: 97926 Total Submissions: 292400 Difficulty: Easy Given a binary tree, determine if it is height-balanced. For this problem, a h

[LeetCode][JavaScript]Balanced Binary Tree

Balanced Binary Tree Given a binary tree, determine if it is height-balanced. 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 than 1. https://leetco

[leetcode]Balanced Binary Tree @ Python

原题地址:http://oj.leetcode.com/problems/balanced-binary-tree/ 题意:判断一颗二叉树是否是平衡二叉树. 解题思路:在这道题里,平衡二叉树的定义是二叉树的任意节点的两颗子树之间的高度差小于等于1.这实际上是AVL树的定义.首先要写一个计算二叉树高度的函数,二叉树的高度定义为:树为空时,高度为0.然后递归求解:树的高度 = max(左子树高度,右子树高度)+1(根节点要算上).高度计算函数实现后,递归求解每个节点的左右子树的高度差,如果有大于1的

[LeetCode][Java] Balanced Binary Tree

题目: Given a binary tree, determine if it is height-balanced. 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 than 1. 题意: 给定一棵二叉树,判定它是否为平衡二叉树. 算法分析: