北京赛区(2017)网络赛 之 Visiting Peking University

题目1 : Visiting Peking University 时间限制: 1000ms 单点时限: 1000ms 内存限制: 256MB 描述 Ming is going to travel for n days and the date of these days can be represented by n integers: 0, 1, 2, …, n-1. He plans to s

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