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北京大学《ACM/ICPC大学生程序设计竞赛训练》暑期课面向全球招生!

这题线段树怎么做?

Posted by SherlockBourne at 2007-09-25 13:03:50 on Problem 1990
我只想出保存声音最大值和最小值的方法……tle了……

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