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线性算法是不行,一个例子是 at et 组成串是 etat,如果从尾向前匹配,如果先匹配的是第二个串的t,那么匹配就终止了,事实上不是如此。

Posted by hopeztm at 2011-12-07 10:24:34 on Problem 2192


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