09 2012 档案

线段树单点更新 HDU 1394 Minimum Inversion Number
摘要：Problem DescriptionThe inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i aj.For a given sequ... 阅读全文

posted @ 2012-09-01 19:02 jumpingfrog0 阅读(394) 评论(0) 推荐(0)

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