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Description Farmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a point N (0 ≤ N ≤ 100,00 阅读全文
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Description Given a number N, you are asked to count the number of integers between A and B inclusive which are relatively prime to N. Two integers ar 阅读全文
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Problem Description 经过锦囊相助,海东集团终于度过了危机,从此,HDU的发展就一直顺风顺水,到了2050年,集团已经相当规模了,据说进入了钱江肉丝经济开发区500强。这时候,XHD夫妇也退居了二线,并在风景秀美的诸暨市浬浦镇陶姚村买了个房子,开始安度晚年了。这样住了一段时间,徐总 阅读全文
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Description Little Susie listens to fairy tales before bed every day. Today's fairy tale was about wood cutters and the little girl immediately starte 阅读全文
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Description Assume the coasting is an infinite straight line. Land is in one side of coasting, sea in the other. Each small island is a point locating 阅读全文
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Description One day , Kiki wants to visit one of her friends. As she is liable to carsickness , she wants to arrive at her friend’s home as soon as po 阅读全文