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Problem Description Function Fx,ysatisfies:For given integers N and M,calculate Fm,1 modulo 1e9+7. Input There is one integer T in the first line.The 阅读全文
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Problem Description Steph is extremely obsessed with “sequence problems” that are usually seen on magazines: Given the sequence 11, 23, 30, 35, what i 阅读全文
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Problem Description On a two-dimensional plane, give you n integer points. Your task is to figure out how many different regular polygon these points 阅读全文
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题目传送：http://acm.hdu.edu.cn/showproblem.php?pid=6045 Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s 阅读全文
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题目传送：http://acm.hdu.edu.cn/showproblem.php?pid=6043 Problem Description KazaQ wears socks everyday.At the beginning, he has n pairs of socks numbered 阅读全文
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Problem Description There is a youngster known for amateur propositions concerning several mathematical hard problems.Nowadays, he is preparing a thou 阅读全文
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Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group 阅读全文
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Problem Description This is a simple problem. Given two triangles A and B, you should determine they are intersect, contain or disjoint. (Public edge 阅读全文
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Problem Description Therearex frogs and y chicken in a garden. Kim found there are n heads and m legs in the garden. Please tell Kim how many frogs an 阅读全文
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Problem Description 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 阅读全文
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You are trapped in a 3D dungeon and need to find the quickest way out! The dungeon is composed of unit cubes which may or may not be filled with rock. 阅读全文
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ZZX has a sequence of boxes numbered 1,2,...,n1,2,...,n. Each box can contain at most one ball. You are given the initial configuration of the balls. 阅读全文
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As we know, Rikka is poor at math. Yuta is worrying about this situation, so he gives Rikka some math tasks to practice. There is one of them: Correct 阅读全文