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Background Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders and that 阅读全文
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Farmer John wants to repair a small length of the fence around the pasture. He measures the fence and finds that he needs N (1 ≤ N ≤ 20,000) planks of 阅读全文
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In a highly developed alien society, the habitats are almost infinite dimensional space. In the history of this planet,there is an old puzzle. You hav 阅读全文
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Recently your team noticed that the computer you use to practice for programming contests is not good enough anymore. Therefore, you decide to buy a n 阅读全文
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Adam and Eve enter this year's ACM International Collegiate Programming Contest. Last night, they played the Calendar Game, in celebration of this con 阅读全文
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https://odzkskevi.qnssl.com/cd5694d5c85f39f2036f7473917563e5?v=1502195814 阅读全文
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Each New Year Timofey and his friends cut down a tree of n vertices and bring it home. After that they paint all the n its vertices, so that the i-th 阅读全文
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湫湫减肥 越减越肥！ 最近，减肥失败的湫湫为发泄心中郁闷，在玩一个消灭免子的游戏。 游戏规则很简单，用箭杀死免子即可。 箭是一种消耗品，已知有M种不同类型的箭可以选择，并且每种箭都会对兔子造成伤害，对应的伤害值分别为Di（1 <= i <= M），每种箭需要一定的QQ币购买。 假设每种箭只能使用一次 阅读全文
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Comrade Dujikov is busy choosing artists for Timofey's birthday and is recieving calls from Taymyr from Ilia-alpinist. Ilia-alpinist calls every n min 阅读全文
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https://odzkskevi.qnssl.com/8b9d8bb43198f28efe782047d56ab361?v=1501987995 阅读全文