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LeetCode:balanced binary tree
这道题也不是非常的难,弄楚平衡二叉树(AVL)的判断方法就行:1.判断左子树高度与右子树高度之差是否小于12.判断根节点左子树是否满足平衡二叉3.判断根节点右子树是否满足平衡二叉满足以上三个条件才是AVL树 1 /** 2 * Definition for binary tree 3 * str.....
分类:其他好文   时间:2014-11-29 17:31:39    阅读次数:199
【leetcode】Convert Sorted Array to Binary Search Tree (easy)
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.有序数组变二叉平衡搜索树,不难,递归就行。每次先序建立根节点(取最中间的数),然后用子区间划分左右子树。一...
分类:其他好文   时间:2014-11-27 23:20:29    阅读次数:269
LeetCode:Balanced Binary Tree
要求:判断一棵树是否是平衡二叉树Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as a binary tree i...
分类:其他好文   时间:2014-11-27 17:44:31    阅读次数:140
[LeetCode]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 diffe...
分类:其他好文   时间:2014-11-26 19:04:36    阅读次数:148
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.分析:我们比较熟悉由一个sorted array生成一个BST,不同的是这里的数据...
分类:其他好文   时间:2014-11-25 23:01:58    阅读次数:213
【Leetcode】【Easy】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...
分类:其他好文   时间:2014-11-25 00:02:20    阅读次数:428
【LeetCode】Convert Sorted List to Binary Search Tree 解题报告
【题目】 Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 【解析】 分治:用快慢指针找到链表的中点,作为树的root,然后二分——中点之前的链表和中点之后的链表分别再构造二叉平衡树。 /** * Defin...
分类:其他好文   时间:2014-11-24 22:39:00    阅读次数:218
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.C++代码实现:#include#include#include#includeu...
分类:其他好文   时间:2014-11-23 15:53:30    阅读次数:256
HDU 3709 Balanced Number
Problem Description A balanced number is a non-negative integer that can be balanced if a pivot is placed at some digit. More specifically, imagine each digit as a box with weight indicated by the ...
分类:其他好文   时间:2014-11-23 00:44:31    阅读次数:244
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...
分类:其他好文   时间:2014-11-21 21:41:20    阅读次数:252
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