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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!

.....一个保存点的个数一个保存所有点坐标的和...

Posted by wywcgs at 2006-10-18 15:34:31 on Problem 1990
In Reply To:太发指了,用了4个树状数组.... daringQQ大牛能讲一下两个树状数组的做法吗? Posted by:Sempr at 2006-10-18 15:25:01


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