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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!

树剖啊树剖,为嘛我写的树剖就芥末慢捏!!!

Posted by bigTG at 2015-04-22 20:23:31 on Problem 2763
13640K 2438MS
还有cin即使关了同步也慢到飞起!!!
所以没什么必要不要为了省那点代码量用cin啊!!!

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