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leetcode-Balanced Binary Tree
题目描述 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 n...
分类:其他好文   时间:2015-05-04 12:06:20    阅读次数:96
13 Red-black Trees
13 Red-black Trees Red-black trees are one of many search-tree schemes that are "balanced" in order to guarantee that basic dynamic-set operations tak...
分类:其他好文   时间:2015-05-04 11:46:23    阅读次数:187
Balanced Lineup(POJ-3264)(线段树)
很基础的一道线段树的题,有个地方卡了我好久,我下面的这个代码所求的区间是左闭右开的,所以如果所求区间包括区间端点的话需要在有区间上+1 线段树是一种高效的数据结构,特点是求一个区间里的最小、最大值。      数据结构感觉像模板,但是其中的思想应该更值得我们学习,不过话说现在也没几个人能静下心去研究它的原理了吧。。 #include #include #include #include #in...
分类:其他好文   时间:2015-05-03 12:04:21    阅读次数:141
【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 differ by more than 1....
分类:其他好文   时间:2015-05-01 17:25:28    阅读次数:115
poj3264 Balanced Lineup
Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 37683   Accepted: 17656 Case Time Limit: 2000MS Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ ...
分类:其他好文   时间:2015-04-29 17:17:38    阅读次数:139
POJ 3264 Balanced Lineup[RMQ入门题]
题目链接:http://poj.org/problem?id=3264 题目大意:n个数,求区间[ L,R ]的最大最小值之差; 题目分析: RQM:dp[ i ][ j ], i开始长度为2^j的长度的区间最值; O(nlog n)的预处理区间值,O(1)的查询; 代码: //author: ACsorry //result: accept #include #inclu...
分类:其他好文   时间:2015-04-28 22:56:11    阅读次数:156
SPOJ BALNUM Balanced Numbers(数位dp)
Balanced Numbers Time Limit:123MS     Memory Limit:1572864KB     64bit IO Format:%lld & %llu Submit Status Practice SPOJ BALNUM Description Balanced numbers have been used by mathe...
分类:其他好文   时间:2015-04-28 09:57:28    阅读次数:174
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...
分类:其他好文   时间:2015-04-26 16:31:44    阅读次数:119
hdu 3709Balanced Number(数位dp)
Balanced Number Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others) Total Submission(s): 2640    Accepted Submission(s): 1196 Problem Description A balance...
分类:其他好文   时间:2015-04-24 09:20:38    阅读次数:151
OJ练习25——T110 Balanced Binary Tree
判断一棵树是否是平衡树。平衡数的意思是,树左右子树高度之差不能超过1.【思路】递归判断每个子树是否是平衡数,需要调用高度计算的函数。【my code】bool isBalanced(TreeNode *root) { if(root==NULL) return t...
分类:其他好文   时间:2015-04-23 17:17:21    阅读次数:181
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