wcxyky的博客

对于KMP算法，都会涉及到两个串一个是待匹配串 char T[1000]//待匹配串 待匹配串的长度定为n一个是模板串 char P[100]//模板串 模板串的长度定为m要知道KMP的F[i]数组求得的数值就是串P中的[1,i-1]的后缀与串P中的[0,i-2]前缀的最大匹配长度。对于KMP算法一般会利用到两个函数 v...

Problem DescriptionGive you a string with length N, you can generate N strings by left shifts. For example let consider the string “SKYLONG”, we can generate seven strings:String RankSKYLONG 1KY...

Problem DescriptionIt is well known that AekdyCoin is good at string problems as well as number theory problems. When given a string s, we can write down all the non-empty prefixes of this string. ...

Problem DescriptionHomer: Marge, I just figured out a way to discover some of the talents we weren’t aware we had.Marge: Yeah, what is it?Homer: Take me for example. I want to find out if I have ...

Problem DescriptionFor each prefix of a given string S with N characters (each character has an ASCII code between 97 and 126, inclusive), we want to know whether the prefix is a periodic string. T...

Problem DescriptionCC always becomes very depressed at the end of this month, he has checked his credit card yesterday, without any surprise, there are only 99.9 yuan left. he is too distressed and...

Problem DescriptionThe French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group. A quote from the book:Tout avait Pair...

Problem DescriptionThe little cat is so famous, that many couples tramp over hill and dale to Byteland, and asked the little cat to give names to their newly-born babies. They seek the name, and at...

Problem DescriptionGiven two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcdef". If we think of concatenation as multiplication, ex...