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营业额统计 HYSBZ - 1588 营业额统计 Tiger最近被公司升任为营业部经理，他上任后接受公司交给的第一项任务便是统计并分析公司成立以来的营业情况。 Tiger拿出了公司的账本，账本上记录了公司成立以来每天的营业额。分析营业情况是一项相当复杂的工作。由于节假日，大减价或者是其他情况的时候， 阅读全文
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George and Job CodeForces - 467C The new ITone 6 has been released recently and George got really keen to buy it. Unfortunately, he didn't have enough 阅读全文
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Dinner with Emma CodeForces - 616B Jack decides to invite Emma out for a dinner. Jack is a modest student, he doesn't want to go to an expensive resta 阅读全文
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New Year Ratings Change CodeForces - 379C One very well-known internet resource site (let's call it X) has come up with a New Year adventure. Specific 阅读全文
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Woodcutters CodeForces - 545C Little Susie listens to fairy tales before bed every day. Today's fairy tale was about wood cutters and the little girl 阅读全文
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Building Permutation CodeForces - 285C Permutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers, each o 阅读全文
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Tanya and Toys CodeForces - 659C In Berland recently a new collection of toys went on sale. This collection consists of 109 types of toys, numbered wi 阅读全文
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Sanatorium CodeForces - 732C Vasiliy spent his vacation in a sanatorium, came back and found that he completely forgot details of his vacation! Every 阅读全文
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Soldier and Cards CodeForces - 546C Two bored soldiers are playing card war. Their card deck consists of exactly ncards, numbered from 1 to n, all val 阅读全文
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Flowers CodeForces - 474D 话说某个幸运的小伙伴X拿到了kevin女神送的蛋糕，然而他的吃法非常奇特，他独创了两种吃蛋糕的办法：一、一次吃一整个蛋糕；二、一次吃k个蛋糕。 那么，当蛋糕数量为x1到x2之间时，一共能有几种不同的吃法呢？ 由于答案很大，输出结果mod 10000 阅读全文