ACM-ICPC國際大學生程序設計競賽北京賽區（2017）網絡賽-A-Visiting Peking University

時間限制:1000ms 單點時限:1000ms 內存限制: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 spend m consecutive days（2 ≤ m ≤ n）in

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