http://acm.pku.edu.cn/JudgeOnline/problem?id=1088
先MARK,待自己慢慢研究出来再A!
http://www.cppblog.com/AClayton/archive/2007/09/17/32336.aspx
posted on 2012-04-10 19:23 jjtx 阅读(257) 评论(0) 编辑 收藏 举报
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