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摘要: 题目:http://ace.delos.com/usacoprob2?a=0H14tt2CoyP&S=tourhttp://pingce.ayyz.cn:9000/usaco/data/20110129214306/tour.htmlCanada TourYou have won a contest sponsored by an airline. The prize is a ticket to travel around Canada, beginning in the most western point served by this airline, then travelin 阅读全文
posted @ 2012-06-29 22:46 zhonghaoxi 阅读(234) 评论(0) 推荐(1) 编辑
摘要: 题目:http://ace.delos.com/usacoprob2?a=0H14tt2CoyP&S=prime3http://pingce.ayyz.cn:9000/usaco/data/20110129214306/index.html#Section_5.1The PrimesIOI'94In the square below, each row, each column and the two diagonals can be read as a five digit prime number. The rows are read from left to right. 阅读全文
posted @ 2012-06-29 22:39 zhonghaoxi 阅读(661) 评论(0) 推荐(1) 编辑
摘要: 题目:http://ace.delos.com/usacoprob2?a=0H14tt2CoyP&S=cryptcowhttp://pingce.ayyz.cn:9000/usaco/data/20110129214306/index.html#Section_5.1CryptcowgraphyBrian DeanThe cows of Farmer Brown and Farmer John are planning a coordinated escape from their respective farms and have devised a method of encryp 阅读全文
posted @ 2012-06-29 22:26 zhonghaoxi 阅读(401) 评论(0) 推荐(1) 编辑
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