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摘要: 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1124 Problem Description The most important part of a GSM network is so called Base Transceiver Station 阅读全文
posted @ 2018-08-13 10:18 霜雪千年 阅读(135) 评论(0) 推荐(0) 编辑
摘要: 方法一:假设N!=K*10M,K不能被10整除,那么N!尾数就有M个0。再对N!进行质因子分解:N!=2x*3y*5z...由于10=2*5,即每一对2和5相乘都可以得到1个0,所以M只与指数x、z有关,并且M=min(x,z)(x,z分别为N!的中因子2,因子5的个数)。因为N!中每两个数字就有一 阅读全文
posted @ 2018-08-12 23:49 霜雪千年 阅读(607) 评论(0) 推荐(0) 编辑
摘要: Description Every 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) c 阅读全文
posted @ 2018-08-12 11:02 霜雪千年 阅读(178) 评论(0) 推荐(0) 编辑
摘要: Description The 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 阅读全文
posted @ 2018-08-10 10:45 霜雪千年 阅读(369) 评论(0) 推荐(0) 编辑
摘要: Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Ouli 阅读全文
posted @ 2018-08-10 09:53 霜雪千年 阅读(130) 评论(0) 推荐(0) 编辑
摘要: 题目描述 We consider a positive integer perfect, if and only if it is equal to the sum of its positive divisors less than itself. For example, 6 is perfec 阅读全文
posted @ 2018-08-09 23:38 霜雪千年 阅读(287) 评论(0) 推荐(0) 编辑
摘要: 题目描述 In mathematics, matrix multiplication or matrix product is a binary operation that produces a matrix from two matrices with entries in a field, o 阅读全文
posted @ 2018-08-09 22:40 霜雪千年 阅读(384) 评论(0) 推荐(0) 编辑
摘要: Description 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 number to 阅读全文
posted @ 2018-08-08 11:27 霜雪千年 阅读(207) 评论(0) 推荐(0) 编辑
摘要: Problem Description 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 阅读全文
posted @ 2018-08-08 09:47 霜雪千年 阅读(203) 评论(0) 推荐(0) 编辑
摘要: Problem Description Pass a year learning in Hangzhou, yifenfei arrival hometown Ningbo at finally. Leave Ningbo one year, yifenfei have many people to 阅读全文
posted @ 2018-08-07 21:40 霜雪千年 阅读(164) 评论(0) 推荐(0) 编辑
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