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题目描述 Farmer John's new barn consists of a huge circle of N stalls (2 <= N <= 3,000,000), numbered 0..N-1, with stall N-1 being adjacent to stall 0. At 阅读全文
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题目描述 N (1 <= N <= 50,000) cows conveniently numbered 1..N are driving in separate cars along a highway in Cowtopia. Cow i can drive in any of M differ 阅读全文
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题目描述 输入输出格式 输入格式： 第一行为N，第二行有N个数，依次为第二列的格子中的数。（1<= N <= 10000） 输出格式： 一个数，即第一列中雷的摆放方案数。 输入输出样例 输入样例#1： 复制 2 1 1 输出样例#1： 复制 2 题目描述 输入输出格式 第一行为N，第二行有N个数，依 阅读全文
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题目描述 Farmer John and his cows are planning to leave town for a long vacation, and so FJ wants to temporarily close down his farm to save money in the 阅读全文