摘要: GCD ExpectationTime Limit: 4 Seconds Memory Limit: 262144 KBEdward has a set of n integers {a1, a2,...,an}. He randomly picks a nonempty subset {x1... 阅读全文
posted @ 2015-04-17 21:25 92度的苍蓝 阅读(597) 评论(0) 推荐(0)
http://images.cnblogs.com/cnblogs_com/Running-Time/724426/o_b74124f376fc157f352acc88.jpg