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hdu----(2222)Keywords Search(trie树)
Keywords SearchTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 35683Accepted Submission(s): 11520P...
分类:其他好文   时间:2014-09-30 01:27:41    阅读次数:394
搜索引擎优化之语义标签 (microdata, microformats, RDFa)
Snippets—the few lines of text that appear under every search result—are designed to give users a sense for what’s on the page and why it’s relevant to their query. If?Google understands the ...
分类:其他好文   时间:2014-09-29 18:37:31    阅读次数:316
leetcode-Unique Binary Search Trees
Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example, Given n = 3, there are a total of 5 unique BST's. 去网上搜n个二叉搜索树的递推公式或者Catalan数,可以由h(n)=C(2n,n)/(n+1)得到h(n)=[2n*(2n-1)*...(n+2)]/[n!]....
分类:其他好文   时间:2014-09-29 17:57:01    阅读次数:171
Overview of Data Structures
Data StructureAdvantagesDisadvantagesArrayQuick insertion, very fast access if index knownSlow search, slow deletion, fixed size.Ordered arrayQuicker ...
分类:其他好文   时间:2014-09-29 13:26:30    阅读次数:271
常见错误收集
1,iOS中AFN Get请求包含中文时崩溃NSString *search = @"http://60.206.137.156:8020/video_api/user/search/51234562346412e86a730d94fef7cc73/中";[manger GET: search pa...
分类:其他好文   时间:2014-09-28 21:34:15    阅读次数:145
Ubuntu更新命令 <转>
apt-cache search package 搜索包 apt-cache show package 获取包的相关信息,如说明、大小、版本等 sudo apt-get install package 安装包 sudo apt-get install package - - re...
分类:其他好文   时间:2014-09-28 19:16:54    阅读次数:149
SAP ---- Access Sequencce
UseAn access sequence is a search strategy that the system uses to find valid data for a particular condition type. It determines the sequence in whic...
分类:数据库   时间:2014-09-28 16:03:53    阅读次数:231
Recover Binary Search Tree [leetcode]
本题是在中序遍历的基础上,找不合规范(不是递增)的树节点对,然后交换 首先看两种序列: 1. 1 3 2 4=>应该交换3和2 2. 4 3 2 1=>应交换4和1 这两种序列对应了不符合条件的BST的中序遍历序列的所有可能性---两个节点中序遍历相邻/不相邻 如果我们用一个数组swap保存所有中序遍历不递增的结果,那么这个数组只可能是2或者4的大小 而我们交换数组中节点对内容,只需交...
分类:其他好文   时间:2014-09-27 16:21:19    阅读次数:151
Unique Binary Search Trees In JAVA
Givenn, how many structurally uniqueBST's(binary search trees) that store values 1...n?For example,Givenn= 3, there are a total of 5 unique BST's. 1.....
分类:编程语言   时间:2014-09-27 15:24:59    阅读次数:159
PAT 1064 Complete Binary Search Tree
1 #include 2 #include 3 #include 4 #include 5 #include 6 7 using namespace std; 8 9 class Node {10 public:11 int val;12 Node* left;13 ...
分类:其他好文   时间:2014-09-27 13:39:29    阅读次数:180
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