HDU2222 Keywords Search Problem Description In the modern time, Search engine came into the life of everybody like Google, Baidu, etc. Wiskey also wants to bring this feature to his image retrieval system. Every image have a long description, when us…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2222 Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 65272    Accepted Submission(s): 21782 Problem Description In the modern ti…

玄武密码 给若干模式串和一个文本串.求每个模式串在文本串上能匹配的最大前缀长度. N<=10^7,M<=10^5,每一段文字的长度<=100. jklover的题解 将模式串建成一个 AC 自动机,匹配文本串的时候往前暴力跳,跳到第一个合法的位置即可. 时间复杂度:线性. co int N=1e7+1,S=4; int n,m; int len[N]; namespace AC { int idx; int id(char x) { switch(x) { case 'E': retur…

地址:http://acm.split.hdu.edu.cn/showproblem.php?pid=2222 题目: Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 56558    Accepted Submission(s): 18493 Problem Description In the mo…

Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 50435    Accepted Submission(s): 16233 Problem Description In the modern time, Search engine came into the life of everybody li…

Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 35683    Accepted Submission(s): 11520 Problem Description In the modern time, Search engine came into the life of everybody like…

Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 46676    Accepted Submission(s): 14858 Problem Description In the modern time, Search engine came into the life of everybody lik…

Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 79383    Accepted Submission(s): 27647 Problem Description In the modern time, Search engine came into the life of everybody lik…

Keywords Search Description In the modern time, Search engine came into the life of everybody like Google, Baidu, etc.       Wiskey also wants to bring this feature to his image retrieval system.       Every image have a long description, when users…

首先,有这样一道题: 给你一个单词W和一个文章T,问W在T中出现了几次(原题见POJ3461). OK,so easy~ HASH or KMP 轻松解决. 那么还有一道例题: 给定n个长度不超过50的由小写英文字母组成的单词准备查询,以及一篇长为m的文章,问:文中出现了多少个待查询的单词(原题见POJ3630). OK,依然so easy~ 字典树(Trie)轻松解决. 那么,如果你说,什么是KMP和Trie,那么恭喜你啊…… 建议大家要在看这篇博客之前做到: 如果你能看到这里,说明你已经熟练…