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Tunnel Warfare Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Problem Description During the War of Resistance Again 阅读全文
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3224: Tyvj 1728 普通平衡树 Description 您需要写一种数据结构(可参考题目标题),来维护一些数,其中需要提供以下操作:1. 插入x数2. 删除x数(若有多个相同的数,因只删除一个)3. 查询x数的排名(若有多个相同的数,因输出最小的排名)4. 查询排名为x的数5. 求x的前 阅读全文
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Description Given a dice with n sides, you have to find the expected number of times you have to throw that dice to see all its faces at least once. A 阅读全文
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Description As Harry Potter series is over, Harry has no job. Since he wants to make quick money, (he wants everything quick!) so he decided to rob ba 阅读全文