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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!

Re:我另外两个一个保存了声音的和,另一个保存了声音*坐标的和.....

Posted by tracyhenry at 2009-04-18 16:36:12 on Problem 1990
In Reply To:我另外两个一个保存了声音的和,另一个保存了声音*坐标的和..... Posted by:Sempr at 2006-10-18 20:41:30
一颗线段树就行了……

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