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链接： https://vjudge.net/problem/HDU 1573 题意： 求在小于等于N的正整数中有多少个X满足：X mod a[0] = b[0], X mod a[1] = b[1], X mod a[2] = b[2], …, X mod a[i] = b[i], … (0 in 阅读全文
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链接： https://vjudge.net/problem/POJ 2115 题意： A Compiler Mystery: We are given a C language style for loop of type for (variable = A; variable != B; var 阅读全文
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链接： https://vjudge.net/problem/POJ 2689 题意： The branch of mathematics called number theory is about properties of numbers. One of the areas that has c 阅读全文
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链接： https://vjudge.net/problem/POJ 2891 题意： Elina is reading a book written by Rujia Liu, which introduces a strange way to express non negative integ 阅读全文
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链接： https://vjudge.net/problem/POJ 2142 题意： Ms. Iyo Kiffa Australis has a balance and only two kinds of weights to measure a dose of medicine. For exa 阅读全文
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链接： https://vjudge.net/problem/POJ 1061 题意： 两只青蛙在网上相识了，它们聊得很开心，于是觉得很有必要见一面。它们很高兴地发现它们住在同一条纬度线上，于是它们约定各自朝西跳，直到碰面为止。可是它们出发之前忘记了一件很重要的事情，既没有问清楚对方的特征，也没有约 阅读全文