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摘要: You are given an array of nn integers a1,a2,...,ana1,a2,...,an. We define that a sequence p1,p2,...,pk(k∈[1,n])p1,p2,...,pk(k∈[1,n]) is beautiful if a 阅读全文
posted @ 2019-08-04 11:16 Through_The_Night 阅读(316) 评论(0) 推荐(0)