04 2018 档案
摘要：The citizens of Bytetown, AB, could not stand that the candidates in the mayoral election campaign have been placing their electoral p...
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摘要：In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of several cons...
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摘要：Chinese always have the railway tickets problem because of its' huge amount of passangers and stations. Now goverment need you to deve...
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摘要：C国的死对头A国这段时间正在进行军事演习，所以C国间谍头子Derek和他手下Tidy又开始忙乎了。A国在海岸线沿直线布置了N个工兵营地,Derek和Tidy的任务就是要监视这些工兵营地的活动情况。由于采取了某种先进的监测手段，所以每个工兵营地的人数C国都掌握的一清二楚...
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摘要：You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of operation is to add some given numbe...
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摘要：很多学校流行一种比较的习惯。老师们很喜欢询问，从某某到某某当中，分数最高的是多少。 这让很多学生很反感。 不管你喜不喜欢，现在需要你做的是，就是按照老师的要求，写一个程序，模拟老师的询问。当然，老师有时候需要更新某位同学的成绩。Input本题目包含多组测试，请处理到文...
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摘要：Problem DescriptionIn the modern time, Search engine came into the life of everybody like Google, Baidu, etc.Wiskey also wants to brin...
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摘要：Neal is very curious about combinatorial problems, and now here comes a problem about words. Knowingthat Ray has a photographic memory...
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摘要：int trie[1000010][26]; int num[1000010]={0}; int pos = 1;void Insert(char *s) { int i; int c = 0; for(i=0;i<strlen(s);i...
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摘要：Description A template for an artwork is a white grid of n × m squares. The artwork will be created by painting q horizontal and vertical black stroke
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摘要：欧拉函数： 定义和简单性质 欧拉函数在OI中是个非常重要的东西,不知道的话会吃大亏的. 欧拉函数用希腊字母φ表示,φ(N)表示N的欧拉函数. 对φ(N)的值,我们可以通俗地理解为小于N且与N互质的数的个数(包含1). 欧拉函数的一些性质: 1.对于素数p, φ(p)=p-1，对于对两个素数p,q φ
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摘要：欧拉函数： 定义和简单性质 欧拉函数在OI中是个非常重要的东西,不知道的话会吃大亏的. 欧拉函数用希腊字母φ表示,φ(N)表示N的欧拉函数. 对φ(N)的值,我们可以通俗地理解为小于N且与N互质的数的个数(包含1). 欧拉函数的一些性质: 1.对于素数p, φ(p)=p-1，对于对两个素数p,q φ
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摘要：DescriptionEverybody loves big numbers (if you do not, you might want to stop reading at this point). There are many ways of construct...
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摘要：DescriptionA tremendously exciting raffle is being held, with some tremendously exciting prizes being given out. All you have to do to...
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