BZOJ_3940_[Usaco2015 Feb]Censoring_AC自动机 Description FJ把杂志上所有的文章摘抄了下来并把它变成了一个长度不超过10^5的字符串S.他有一个包含n个单词的列表,列表里的n个单词 记为t_1...t_N.他希望从S中删除这些单词.  FJ每次在S中找到最早出现的列表中的单词(最早出现指该单词的开始位置最小),然后从S中删除这个单词.他重复这个操作直到S中 没有列表里的单词为止.注意删除一个单词后可能会导致S中出现另一个列表中的单词  FJ注意到列…

[BZOJ3942][Usaco2015 Feb]Censoring Description Farmer John has purchased a subscription to Good Hooveskeeping magazine for his cows, so they have plenty of material to read while waiting around in the barn during milking sessions. Unfortunately, the…

点此看题面 大致题意: 给你一个文本串和\(N\)个模式串,要你将每一个模式串从文本串中删去.(此题是[BZOJ3942][Usaco2015 Feb]Censoring的升级版) \(AC\)自动机 这是一道\(AC\)自动机的简单运用题. 题解 我们可以用一个\(ans[\) \(]\)字符数组来存储最后的答案,并用一个\(lst[\) \(]\)数组来记录字符串中每一位上次被访问时所到达的\(Trie\)上的节点. 如果找到了一个长度为\(len\)的模式串要删去,我们可以将\(ans\)…

题目传送门 题目描述: FJ把杂志上所有的文章摘抄了下来并把它变成了一个长度不超过105的字符串S.他有一个包含n个单词的列表,列表里的n个单词记为t1…tN.他希望从S中删除这些单词.FJ每次在S中找到最早出现的列表中的单词(最早出现指该单词的开始位置最小),然后从S中删除这个单词.他重复这个操作直到S中没有列表里的单词为止.(注意删除一个单词后可能会导致S中出现另一个列表中的单词)FJ注意到列表中的单词不会出现一个单词是另一个单词子串的情况,这意味着每个列表中的单词在S中出现的开始位置是互不…

3940: [Usaco2015 Feb]Censoring Time Limit: 10 Sec  Memory Limit: 128 MB Description Farmer John has purchased a subscription to Good Hooveskeeping magazine for his cows, so they have plenty  of material to read while waiting around in the barn during…

AC自动机.为什么洛谷水题赛会出现这种题然而并不会那么题意就不说啦 .终于会写AC自动机判断是否是子串啦...用到kmp的就可以用AC自动机水过去啦 #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> #include<queue> using namespace std; #define rep(i,s,t) for(int i=s;i<=t;…

3940: [Usaco2015 Feb]Censoring Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 367  Solved: 173[Submit][Status][Discuss] Description Farmer John has purchased a subscription to Good Hooveskeeping magazine for his cows, so they have plenty  of materia…

[BZOJ3943][Usaco2015 Feb]SuperBull Description Bessie and her friends are playing hoofball in the annual Superbull championship, and Farmer John is in charge of making the tournament as exciting as possible. A total of N (1 <= N <= 2000) teams are p…

3942: [Usaco2015 Feb]Censoring Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 375  Solved: 206[Submit][Status][Discuss] Description Farmer John has purchased a subscription to Good Hooveskeeping magazine for his cows, so they have plenty of material…

3943: [Usaco2015 Feb]SuperBull Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 300  Solved: 185 Description Bessie and her friends are playing hoofball in the annual Superbull championship, and Farmer John is  in charge of making the tournament as ex…