hdu-1541-Stars （树状数组）
摘要：
Problem DescriptionAstronomers often examine star maps where stars are represented by points on a plane and each star has Cartesian coordinates. Let t... 阅读全文
posted @ 2015-08-24 10:02 甜蜜蜜吖甜蜜蜜 阅读(114) 评论(0) 推荐(0)
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