heat nan

摘要： Problem webpage:http://acm.hdu.edu.cn/showproblem.php?pid=4461Problem analysis:This is one of the 2012 Asia Hangzhou Regional Contest problems, what I want to say is this problem is just proved that you joined the contest;The only problem is the problem description is too long>After reading the p 阅读全文

摘要： Problem DescriptionIn China, foreign brand commodities are often much more expensive than abroad. The main reason is that we Chinese people tend to think foreign things are better and we are willing to pay much for them. The typical example is, on the United Airline flight, they give you Haagendazs 阅读全文