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Problem DescriptionJack likes to travel around the world, but he doesn’t like to wait. Now, he is traveling in the Undirected Kingdom. There arencitie... 阅读全文
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Problem DescriptionElves are very peculiar creatures. As we all know, they can live for a very long time and their magical prowess are not something t... 阅读全文
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Problem DescriptionIn Land waterless, water is a very limited resource. People always fight for the biggest source of water. Given a sequence of water... 阅读全文
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Language:DiningTime Limit:2000MSMemory Limit:65536KTotal Submissions:11719Accepted:5387DescriptionCows are such finicky eaters. Each cow has a prefere... 阅读全文