摘要: 1129. Door PaintingTime limit: 0.25 second Memory limit: 64 MBThere are many rooms, corridors and doors between them in the kindergarten. Some repairs are planned to be made soon. The doors are agreed to be painted in bright cheerful colors: green and yellow. The matron of the kindergarten wants the 阅读全文
posted @ 2013-08-31 21:40 persistent codeants 阅读(278) 评论(0) 推荐(0)
摘要: Problem DescriptionIt is well known that a human gene can be considered as a sequence, consisting of four nucleotides, which are simply denoted by four letters, A, C, G, and T. Biologists have been interested in identifying human genes and determining their functions, because these can be used to di 阅读全文
posted @ 2013-08-31 19:53 persistent codeants 阅读(203) 评论(0) 推荐(0)