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摘要： 题目 Fires can be disastrous, especially when a fire breaks out in a room that is completely filled with people. Rooms usually have a couple of exits an 阅读全文

摘要： #　题目 FJ's \(N (1 ≤ N ≤ 10,000)\) cows conveniently indexed 1..N are standing in a line. Each cow has a positive integer height (which is a bit of secr 阅读全文