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DescriptionGiven 5 integers: a, b, c, d, k, you're to find x in a...b, y in c...d that GCD(x, y) = k. GCD(x, y) means the greatest common divisor of x... 阅读全文
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Euler is a well-known matematician, and, among many other things, he discovered that the formula n 2 + n + 41 produces a prime for 0 ≤ n #include #inc... 阅读全文
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DescriptionConsider a positive integer X,and let S be the sum of all positive integer divisors of 2004^X. Your job is to determine S modulo 29 (the re... 阅读全文
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DescriptionYou are given a non-negative integern, its decimal representation consists of at most100digits and doesn't contain leading zeroes.Your task... 阅读全文
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Description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，也没有约定见面的具体位置。不过青蛙们都是很乐观的，它们觉得只要一直朝着某个... 阅读全文
摘要：
Given the N integers, you have to find the maximum GCD (greatest common divisor) of every possible pair of these integers.InputThe first line of input... 阅读全文