poj 2778 DNA Sequence AC自动机

mac2022-07-05  27

DNA Sequence

Time Limit: 1000MS Memory Limit: 65536KTotal Submissions: 11860 Accepted: 4527

Description

It's well known that DNA Sequence is a sequence only contains A, C, T and G, and it's very useful to analyze a segment of DNA Sequence,For example, if a animal's DNA sequence contains segment ATC then it may mean that the animal may have a genetic disease. Until now scientists have found several those segments, the problem is how many kinds of DNA sequences of a species don't contain those segments.  Suppose that DNA sequences of a species is a sequence that consist of A, C, T and G,and the length of sequences is a given integer n. 

Input

First line contains two integer m (0 <= m <= 10), n (1 <= n <=2000000000). Here, m is the number of genetic disease segment, and n is the length of sequences.  Next m lines each line contain a DNA genetic disease segment, and length of these segments is not larger than 10. 

Output

An integer, the number of DNA sequences, mod 100000.

Sample Input

4 3 AT AC AG AA

Sample Output

36

 

转载于:https://www.cnblogs.com/mhy12345/p/4045102.html

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