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J题:company 题目描述 There are n kinds of goods in the company, with each of them has a inventory of cnti and direct unit benefit vali. Now you find due to 阅读全文
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K题:CF 题目描述 LYD loves codeforces since there are many Russian contests. In an contest lasting for T minutes there are n problems, and for the ith probl 阅读全文
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G: sum of power 题目描述 Calculate mod (1000000000+7) for given n,m. Calculate mod (1000000000+7) for given n,m. 输入 Input contains two integers n,m(1≤n≤10 阅读全文
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F题:quadratic equation 时间限制: 2 秒 内存限制: 128 MB | 提交: 277 解决: 44 题目描述 With given integers a,b,c, you are asked to judge whether the following statement i 阅读全文
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A题:Return of the Nim 时间限制: 1 秒 内存限制: 64 MB | 提交: 33 解决: 16 题目描述 Sherlock and Watson are playing the following modified version of Nim game: There are 阅读全文