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AC自动机+dp.问改变多少个字符能让目标串不含病毒串.即走过多少步不经过病毒串终点.又是同样的问题. #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> #include<queue> using namespace std; #define REP(i,s,t) for(int i=s;i<=t;i++) #define dwn(i,s,t)…
DNA repair Time Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 940    Accepted Submission(s): 500 Problem Description Biologists finally invent techniques of repairing DNA that contains segments cau…
DNA repair Time Limit: 2000MS Memory Limit: 65536KB 64bit IO Format: %I64d & %I64u Description Biologists finally invent techniques of repairing DNA that contains segments causing kinds of inherited diseases. For the sake of simplicity, a DNA is repr…
http://poj.org/problem?id=3691 http://acm.hdu.edu.cn/showproblem.php?pid=2457 DNA repair Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 5690   Accepted: 2669 Description Biologists finally invent techniques of repairing DNA that contain…
DNA repair Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 4815   Accepted: 2237 Description Biologists finally invent techniques of repairing DNA that contains segments causing kinds of inherited diseases. For the sake of simplicity, a…
题意:给你几个模式串,问你主串最少改几个字符能够使主串不包含模式串 思路:从昨天中午开始研究,研究到现在终于看懂了.既然是多模匹配,我们是要用到AC自动机的.我们把主串放到AC自动机上跑,并保证不出现模式串,这里对AC自动机的创建有所改动,我们需要修改不存在但是符合要求的节点,如果某节点的某一子节点不存在,我们就把这个子节点指向他父辈节点存在的该节点(比如k->next[1]不存在,k->fail->next[1]存在,我们就把他改为k->next[1] = k->fail-…
DNA repair Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 5877   Accepted: 2760 Description Biologists finally invent techniques of repairing DNA that contains segments causing kinds of inherited diseases. For the sake of simplicity, a…
题目链接:https://vjudge.net/problem/HDU-2457 DNA repair Time Limit: 5000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3126    Accepted Submission(s): 1661 Problem Description Biologists finally invent techniques…
DNA repair Problem Description   Biologists finally invent techniques of repairing DNA that contains segments causing kinds of inherited diseases. For the sake of simplicity, a DNA is represented as a string containing characters 'A', 'G' , 'C' and '…
问题:Biologists finally invent techniques of repairing DNA that contains segments causing kinds of inherited diseases. For the sake of simplicity, a DNA is represented as a string containing characters 'A', 'G' , 'C' and 'T'. The repairing techniques a…