我们考察达到最终结果时的状态，由于原始态的向量为：[1,3,5,...,2n−1]，故达到平衡态时，所有的元素变为：[n,n,n,...,n]，因此，每一个元素需要的操作次数为：[n−1,n−3,...n−3,n−1]。...

登录服务器时，提示登录密码过期，必须修改密码重新登录，You are required to change your password immediately (password aged), You must change your password now and login again!...

Problem Description Give a number n, find the minimum x(x>0) that satisfies 2^x mod n = 1.

Problem Description We all know that Bin-Laden is a notorious terrorist, and he has disappeared for a long time. But recently, it is reported that he hides in...

Consider the natural numbers from 1 to N. By associating to each number a sign (+ or -) and calculating the value of this expression we obtain a sum S. The prob...

DescriptionBackground Everybody hates Raymond. He’s the largest stamp collector on planet earth and because of that he always makes fun of all the others at ...

在设定方面，最小订购量(MOQ)可以位于物料主数据中，也可以在采购信息记录中。在物料主数据中，是设置于MRP1的最小批量(Minimum Lot Size)舍入值,信息记录中的是在采购组织数据中的最小数量(Minimum Qty).最小包装量（MPQ)在...

在设定方面，最小订购量(MOQ)可以位于物料主数据中，也可以在采购信息记录中。在物料主数据中，是设置于MRP1的最小批量(Minimum Lot Size)舍入值,信息记录中的是在采购组织数据中的最小数量(Minimum Qty).最小包装量（MPQ)在...

Nikolay has only recently started in competitive programming, but already qualified to the finals of one prestigious olympiad. There going to be n participants,...

In one move, you can add +1 or −1 to any of these integers (i.e. increase or decrease any number by one). You can perform such operation any (possibly, zero) nu...