随笔分类 -  KMP算法练习

字符串匹配算法
【KMP+DP】Count the string
摘要:KMP算法的综合练习DP很久没写搞了半天才明白。本题结合Next[]的意义以及动态规划考察对KMP算法的掌握。Problem DescriptionIt is well known that AekdyCoin is good at string problems as well as number... 阅读全文

posted @ 2015-02-23 16:03 0Kelvin 阅读(227) 评论(0) 推荐(0)

【KMP】剪花布条
摘要:KMP算法又水了一题。算是巩固复习吧。Problem Description一块花布条,里面有些图案,另有一块直接可用的小饰条,里面也有一些图案。对于给定的花布条和小饰条,计算一下能从花布条中尽可能剪出几块小饰条来呢?Input输入中含有一些数据,分别是成对出现的花布条和小饰条,其布条都是用可见AS... 阅读全文

posted @ 2015-02-21 15:57 0Kelvin 阅读(169) 评论(0) 推荐(0)

【KMP】Period
摘要:KMP算法Next[]函数深入理解,Next[]当前字符前匹配字符数,串长n-Next[i]=串内循环子串的长度p。本题求子循环串内循环节数。Problem DescriptionFor each prefix of a given string S with N characters (each ... 阅读全文

posted @ 2015-02-15 15:56 0Kelvin 阅读(159) 评论(0) 推荐(0)

【KMP】Cyclic Nacklace
摘要:KMP算法next[]深入了解,做到这题才真正明白next[]的用法,希望后面的题目能理解的更深刻。Problem Description CC always becomes very depressed at the end of this month, he has checked his cr... 阅读全文

posted @ 2015-02-03 22:18 0Kelvin 阅读(186) 评论(0) 推荐(0)

【KMP】Oulipo
摘要:KMP算法求串内匹配数,计数时返回next[]位置。Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. H... 阅读全文

posted @ 2015-02-01 18:17 0Kelvin 阅读(149) 评论(0) 推荐(0)

【KMP】Number Sequence
摘要:KMP算法KMP的基处题目,数字数组的KMP算法应用。主要是next[]数组的构造,next[]存储的是字符的当前字串,与子串前字符匹配的字符数。移动位数 = 已匹配的字符数 - 对应的部分匹配值Problem DescriptionGiven two sequences of numbers : ... 阅读全文

posted @ 2015-01-30 22:53 0Kelvin 阅读(182) 评论(0) 推荐(0)

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