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【POJ】[1006]Biorhythms

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【Codeforces】[580B]Kefa and Company

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【Codeforces】[599B]Spongebob and Joke

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【Codeforces】[612B]HDD is Outdated Technology

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【Codeforces】[597B]Restaurant

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【Codeforces】[615A]Bulbs

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【Codeforces】[611A]New Year and Days

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【Codeforces】[610A]Pasha and Stick

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【Codeforces】[612A]The Text Splitting

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【Codeforces】[604A]Uncowed Forces

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【Codeforces】[599A]Patrick and Shopping

知识汇总

欧几里得——GCD引发的讨论

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【郑轻】[1125]上三角矩阵的判断

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【郑轻】[1127]矩阵乘积

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【杭电】[1997]汉诺塔VII