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Problem DescriptionJohn has several lines. The lines are covered on the X axis. Let A is a point which is covered by the most lines. John wants to kno... 阅读全文
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StampsThe government of Nova Mareterrania requires that various legal documents have stamps attached to them so that the government can derive revenue... 阅读全文
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How Big Is It?Ian's going to California, and he has to pack his things, including his collection of circles. Given a set of circles, your program must... 阅读全文