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Leetcode 11 Container With Most Water
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:2015-06-14 18:22:19    阅读次数:105
Leetcode 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...
分类:其他好文   时间:2015-06-14 16:25:49    阅读次数:101
Leetcode[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...
分类:其他好文   时间:2015-06-12 23:57:34    阅读次数:136
leetcode之Maximum Depth of Binary Tree 以及Balanced Binary Tree
Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest le...
分类:其他好文   时间:2015-06-12 23:40:02    阅读次数:121
BZOJ 1637: [Usaco2007 Mar]Balanced Lineup( sort + 前缀和 )
将 0 变为 -1 , 则只需找区间和为 0 , 即前缀和相同的最长区间 , 记录一下每个前缀和出现的最早和最晚的位置 , 比较一下就 OK 了------------------------------------------------------------------------------...
分类:其他好文   时间:2015-06-10 20:57:54    阅读次数:144
Balanced Binary Tree
超简洁的代码本来考虑是不是真的要每个点求一个maxDepth,看来是的哟public class Solution { public boolean isBalanced(TreeNode root) { if (root==null) return true; i...
分类:其他好文   时间:2015-06-10 06:35:56    阅读次数:88
Convert Sorted Array to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.题解完全抄自ref的说明,感谢!“题解:先复习下什么是二叉搜索树(引自Wikipedia):二叉查找树(B...
分类:其他好文   时间:2015-06-10 06:33:38    阅读次数:112
大话数据结构—平衡二叉树(AVL树)
平衡二叉树(Self-Balancing Binary Search Tree/Height-Balanced Binary Search Tree),是一种二叉排序树,其中每一个节点的左子树和右子树的高度差至多等于1.平衡二叉树的前提是二叉排序树,不是二叉排序树的都不是平衡二叉树。 平衡因子BF(Balance Factor):二叉树上节点的左子树深度减去右子树深度的值。最小不平衡子树:距离插入...
分类:其他好文   时间:2015-06-09 23:48:22    阅读次数:414
【差分+前缀和】BZOJ1637: [Usaco2007 Mar]Balanced Lineup
DescriptionFarmer John 决定给他的奶牛们照一张合影,他让 N (1 ≤ N ≤ 50,000) 头奶牛站成一条直线,每头牛都有它的坐标(范围: 0..1,000,000,000)和种族(0或1)。 一直以来 Farmer John 总是喜欢做一些非凡的事,当然这次照相也不例外。...
分类:其他好文   时间:2015-06-09 06:12:07    阅读次数:239
跳跃表 -- 随机平衡原理
Skip lists are a data structure that can be used in place of balanced trees.Skip lists use probabilistic balancing rather than strictly enforced balan...
分类:其他好文   时间:2015-06-06 11:58:32    阅读次数:204
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