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http://acm.hdu.edu.cn/showproblem.php?pid=2105 Problem Description Everyone know the story that how Newton discovered the Universal Gravitation. One d 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2103 Problem Description As far as we known,there are so many people in this world,expecially in china.But m 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2107 Problem Description 经过慎重的考虑，XHD,8600, LL，Linle以及RPG等ACM队员集体退役，甚至正在酝酿退学。为什么？要考研？那也不用退学呀…当然不是！真正的原因是他们想提前 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2123 Problem Description In this problem you need to make a multiply table of N * N ,just like the sample ou 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2134 Problem Description Ice cream took a bronze medal in the Beijing match. Liu sir is very very happy. So 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2160 Problem Description 话说现在猪肉价格这么贵，著名的ACBoy 0068 也开始了养猪生活。说来也奇怪，他养的猪一出生第二天开始就能每天中午生一只小猪，而且生下来的竟然都是母猪。不过光生小 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2106 Problem Description As we know , we always use the decimal system in our common life, even using the co 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2109 Problem Description 在上一回，我们让你猜测海东集团用地的形状，你猜对了吗？不管结果如何，都没关系，下面我继续向大家讲解海东集团的发展情况：在最初的两年里，HDU发展非常迅速，综合各种AC 阅读全文
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http://acm.hdu.edu.cn/showproblem.php?pid=2140 Problem Description I believe many people are the fans of prison break. How clever Michael is!! In orde 阅读全文
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https://pintia.cn/problem-sets/994805342720868352/problems/994805528788582400 Calculate a + b and output the sum in standard format -- that is, the di 阅读全文
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https://pintia.cn/problem-sets/994805260223102976/problems/994805269312159744 英国天文学家爱丁顿很喜欢骑车。据说他为了炫耀自己的骑车功力，还定义了一个“爱丁顿数” E ，即满足有 E 天骑车超过 E英里的最大整数 E。据说 阅读全文