码迷,mamicode.com
首页 >  
搜索关键字:spoj balnum balanced    ( 1777个结果
leetcode[110] Balanced Binary Tree
判断一棵树是不是平衡二叉树。思路:递归。每个节点的左右子树是平衡二叉树,并且左右子树的高度相差不超过一。/** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * Tr...
分类:其他好文   时间:2014-11-30 00:24:11    阅读次数:288
【LeetCode】Convert Sorted Array to Binary Search Tree
Convert Sorted Array to Binary Search TreeGiven an array where elements are sorted in ascending order, convert it to a height balanced BST.这题思路参照Conve...
分类:其他好文   时间:2014-11-29 20:07:35    阅读次数:178
【LeetCode】Balanced Binary Tree
Balanced Binary TreeGiven a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tre...
分类:其他好文   时间:2014-11-29 17:33:54    阅读次数:169
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
BZOJ 3769 spoj 8549 BST again 记忆化搜索
题目大意:求深度为h,大小为n个BST的数量对1000000007取模的值 令f[i][j]为大小为i,深度为j以下的BST的数量 设根节点为k,那么两个儿子一定分别是两个BST 有递推式f[i][j]=(1 记忆化搜索即可 卡常数可以过 #include #include #include #include #define M 610 #define MOD 100000000...
分类:其他好文   时间:2014-11-27 16:23:00    阅读次数:188
[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
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!