Problem Description 每学期的期末，大家都会忙于计算自己的平均成绩，这个成绩对于评奖学金是直接有关的。国外大学都是计算GPA(grade point average) 又称GPR(grade point ratio)，即成绩点数与学分的加权平均值来代表一...

Problem Description Eddy’s interest is very extensive, recently he is interested in prime number. Eddy discover the all number owned can be divided into the m...

Problem Description Ignatius was born in a leap year, so he want to know when he could hold his bi

Problem Description A number whose only prime factors are 2,3,5 or 7 is called a humble number. The sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18...

Problem Description How far can you make a stack of cards overhang a table? If you have one card,

Problem Description “Well, it seems the first problem is too easy. I will let you know how foolish you are later.” feng5166 says.

Input Each line will contain one integer N(1 < n < 1000000000). Process to end of file.

Problem Description Now give you two integers n m, you just tell me the m-th number after radix point in 1/n,for example n=4,the first numble after point is 2...

Problem Description Eddy是个ACMer,他不仅喜欢做ACM题,而且对于Ranklist中每个人的ac数量也有一定的研究,他在无聊时经常在纸上把Ranklist上每个人的ac

Problem Description 有二个整数，它们加起来等于某个整数，乘起来又等于另一个整数，它们到底是真还是假，也就是这种整数到底存不存在，实在有点吃不准，你能快速回答吗？看来只能通过编程...