Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 50451    Accepted Submission(s): 16236 Problem Description In the modern time, Search engine came into the life of everybody lik…

HDU 2222 Keywords Search(查询关键字) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) [Description] [题目描述] In the modern time, Search engine came into the life of everybody like Google, Baidu, etc. Wiskey also wants to br…

Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 57353    Accepted Submission(s): 18820 Problem Description In the modern time, Search engine came into the life of everybody li…

点击打开链接题目链接 Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 42838    Accepted Submission(s): 13488 Problem Description In the modern time, Search engine came into the life of eve…

Keywords Search Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 85068    Accepted Submission(s): 29646 Problem Description In the modern time, Search engine came into the life of everybody lik…

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 51758    Accepted Submission(s): 16671 Problem Description In the modern time, Search engine came into the life of everybody like Google, Baidu,…

链接:http://acm.hdu.edu.cn/showproblem.php?pid=2222 思路:裸AC自动机,直接贴代码做模板 #include<stdio.h> #include<string.h> #include<malloc.h> #include<queue> using namespace std; +]; struct node { int count; ]; struct node *fail; void init() { int…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2222 题意:有N(N <= 10000)个长度不超过50的模式串和一个长度不超过1e6的文本串.其中模式串可以重复.问有多少文本串在模式串中出现过.(对于相同的模式串次数仍然累加) 思路:ac自动机裸题: KMP是先将文本串进行匹配得到失配边f[];但是并不适用于文本串较长,模式串较多的情况.因为每次查询的时间复杂度为O(n+m).n,m分别为文本串和模式串的长度: ac自动机就是建立在Trie上,…

http://acm.hdu.edu.cn/showproblem.php?pid=2222 题意:给出多个单词,最后再给出一个模式串,求在该模式串中包含了多少个单词. 思路: AC自动机的模板题. #include<iostream> #include<algorithm> #include<cstring> #include<cstdio> #include<vector> #include<stack> #include<…

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 users type some keywords t…