摘要：
Problem DescriptionThere is a number sequence A1,A2....An,you can select a interval [l,r] or not,all the numbers Ai(l≤i≤r) will become f(Ai).f(x)=(189... 阅读全文
摘要：
Problem DescriptionThere is a number N.You should output "YES" if N is a multiple of 2, 3 or 5,otherwise output "NO". InputThere are multiple test cas... 阅读全文