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Discription The Bad Luck Island is inhabited by three kinds of species: r rocks, s scissors andp papers. At some moments of time two random individual 阅读全文
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题目描述 Alice and Bob play the following game. First, they collect N small stones and put them together in one pile. After that, they throw a coin one by 阅读全文
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题目描述 著名的电子产品品牌SHOI 刚刚发布了引领世界潮流的下一代电子产品—— 概率充电器： “采用全新纳米级加工技术，实现元件与导线能否通电完全由真随机数决 定！SHOI 概率充电器，您生活不可或缺的必需品！能充上电吗？现在就试试看 吧！” SHOI 概率充电器由n-1 条导线连通了n 个充电元 阅读全文
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Blocks Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 7381 Accepted: 3585 Description Panda has received an assignment of painting a line 阅读全文
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排列组合 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 4721 Accepted Submission(s): 2036 Problem D 阅读全文