题目大意是给出一个点序列和一些单词，每个字母可以转换成对应的点序列，求题目所给出的点序列用所给单词组成的方案数。
预处理时先将单词全部转换成点序列，用f[i]表示到点序列的第i位能够用所给单词组成的方案数，则f[i]=∑f[j](s[j+1..1]为所给单词转换成的点序列)。
1650680 2008-09-27 22:37:41 Accepted 1387 FPC 9300 1296 IwfWcf
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