Onebelieve_lxl的博客

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 Hang Zhou of China! “Oh, God! How terribl...

传送门 Problem Description “Well, it seems the first problem is too easy. I will let you know how foolish you are later.” feng5166 says. “The second problem is, given an positive integer N, we define an ...