ACM,再见！

http://acm.hdu.edu.cn/showproblem.php?pid=3973Problem DescriptionYou are given some words {Wi}. Then our stupid AC will give you a very long string S. AC is stupid and always wants to know w

http://acm.hdu.edu.cn/showproblem.php?pid=2222Problem DescriptionIn the modern time, Search engine came into the life of everybody like Google, Baidu, etc.Wiskey also wants to bring th

http://acm.hdu.edu.cn/showproblem.php?pid=2896Problem Description当太阳的光辉逐渐被月亮遮蔽，世界失去了光明，大地迎来最黑暗的时刻。。。。在这样的时刻，人们却异常兴奋——我们能在有生之年看到500年一遇的世界奇观，那是多么幸福的事儿啊~~但网路上总有那么些网站，开始借着民众的好奇心，打着介绍日食的旗号，大肆传播

http://poj.org/problem?id=2778DescriptionIt'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

http://blog.youkuaiyun.com/v_july_v/article/details/7041827///未经优化的kmp数组void GetNext(char* p,int next[]) { int pLen = strlen(p); next[0] = -1; int k = -1; int j = 0; while

http://acm.hdu.edu.cn/showproblem.php?pid=4821Problem DescriptionGiven a string S and two integers L and M, we consider a substring of S as “recoverable” if and only if  (i) It is of l

http://poj.org/problem?id=1200DescriptionMany people like to solve hard puzzles some of which may lead them to madness. One such puzzle could be finding a hidden prime number in a given text.

https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&category=&problem=2514&mosmsg=Submission+received+with+ID+1623942Dr. Ellie Arroway has established cont

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2631

http://acm.hdu.edu.cn/showproblem.php?pid=4915Problem Descriptionbobo found an ancient string. The string contains only three charaters -- "(", ")" and "?".bobo would like to replace

http://acm.timus.ru/problem.aspx?space=1&num=12971297. PalindromeTime limit: 1.0 secondMemory limit: 64 MBThe “U.S. Robots” HQ has just received a rather alarming anonymo

http://www.spoj.com/problems/DISUBSTR/Given a string, we need to find the total number of its distinct substrings.InputT- number of test cases. TEach test case consists of one st

http://poj.org/problem?id=1625DescriptionThe alphabet of Freeland consists of exactly N letters. Each sentence of Freeland language (also known as Freish) consists of exactly M letters without

http://acm.hdu.edu.cn/showproblem.php?pid=2243Problem Description背单词，始终是复习英语的重要环节。在荒废了3年大学生涯后，Lele也终于要开始背单词了。一天，Lele在某本单词书上看到了一个根据词根来背单词的方法。比如"ab",放在单词前一般表示"相反，变坏，离去"等。于是Lele想，如果背了N个词根

http://acdream.info/problem?pid=1019Problem DescriptionNow we have a long long string, and we will have two kinds of operation on it.C i y : change the ith letter to y.Q i j : check whet

http://acm.hdu.edu.cn/showproblem.php?pid=5340Problem DescriptionCan we divided a given string S into three nonempty palindromes? InputFirst line contains a single integer T≤

http://acm.hdu.edu.cn/showproblem.php?pid=5371Problem DescriptionHotaru Ichijou recently is addicated to math problems. Now she is playing with N-sequence.Let's define N-sequence, which is

http://acm.hdu.edu.cn/showproblem.php?pid=4057Problem DescriptionDr. X is a biologist, who likes rabbits very much and can do everything for them. 2012 is coming, and Dr. X wants to take som

http://codeforces.com/contest/552/problem/EE. Vanya and Bracketstime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard out

http://acm.hdu.edu.cn/showproblem.php?pid=2296Problem DescriptionFor the hope of a forever love, Steven is planning to send a ring to Jane with a romantic string engraved on. The string's le

http://acm.hdu.edu.cn/showproblem.php?pid=2457Problem DescriptionBiologists finally invent techniques of repairing DNA that contains segments causing kinds of inherited diseases. For the

http://acm.hdu.edu.cn/showproblem.php?pid=4758Problem Description  On the beaming day of 60th anniversary of NJUST, as a military college which was Second Artillery Academy of Harbin Mil

http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=4114Nobita did use an outstanding anti-virus software, however, for some strange reason, this software did not check email attachment

http://acm.hdu.edu.cn/showproblem.php?pid=2825Problem DescriptionLiyuan lives in a old apartment. One day, he suddenly found that there was a wireless network in the building. Liyuan did not

http://acm.hdu.edu.cn/showproblem.php?pid=3065Problem Description小t非常感谢大家帮忙解决了他的上一个问题。然而病毒侵袭持续中。在小t的不懈努力下，他发现了网路中的“万恶之源”。这是一个庞大的病毒网站，他有着好多好多的病毒，但是这个网站包含的病毒很奇怪，这些病毒的特征码很短，而且只包含“英文大写字符”。当然

http://acm.hdu.edu.cn/showproblem.php?pid=4891Problem DescriptionAs a programming contest addict, Waybl is always happy to take part in various competitive programming contests. One day, he

#include #include #include #include using namespace std;const int maxn=211111;/******************************************************************** 后缀数组 Suffix Array** INIT：solver.call_fun(c

http://acm.hdu.edu.cn/showproblem.php?pid=3746Problem DescriptionCC always becomes very depressed at the end of this month, he has checked his credit card yesterday, without any surprise, th

http://acm.hdu.edu.cn/showproblem.php?pid=1686Problem DescriptionThe French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the

http://acm.hdu.edu.cn/showproblem.php?pid=3336Problem DescriptionIt is well known that AekdyCoin is good at string problems as well as number theory problems. When given a string s, we can w

http://poj.org/problem?id=1961DescriptionFor 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 pre

http://poj.org/problem?id=2406DescriptionGiven 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 concaten

http://acm.hdu.edu.cn/showproblem.php?pid=2087Problem 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

http://acm.nefu.edu.cn/JudgeOnline/problemshow.php?problem_id=640

B. Garlandtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputOnce little Vasya read an article in a magazine o

http://codeforces.com/problemset/problem/219/AA. k-Stringtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=431 Rotating Sentences In ``Rotating Sentences,'' you are asked to rotate

A regular palindrome is a string of numbers or letters that is the same forward as backward. For example, the string "ABCDEDCBA" is a palindrome because it is the same when the string is read from lef

http://poj.org/problem?id=2185DescriptionEvery morning when they are milked, the Farmer John's cows form a rectangular grid that is R (1 <= R <= 10,000) rows by C (1 <= C <= 75) columns. As we

http://codeforces.com/problemset/problem/160/BEach of you probably has your personal experience of riding public transportation and buying tickets. After a person buys a ticket (which traditio