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Tunnel Warfare HDU - 1540 During the War of Resistance Against Japan, tunnel warfare was carried out extensively in the vast areas of north China Plai 阅读全文
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Can you answer these queries? HDU - 4027 A lot of battleships of evil are arranged in a line before the battle. Our commander decides to use our secre 阅读全文
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Balanced Lineup POJ - 3264 For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in the same order. One day Farmer John decides 阅读全文
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Just a Hook HDU - 1698 In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of sever 阅读全文
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A Simple Problem with Integers POJ - 3468 You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of operation 阅读全文
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A - 敌兵布阵 HDU - 1166 C国的死对头A国这段时间正在进行军事演习，所以C国间谍头子Derek和他手下Tidy又开始忙乎了。A国在海岸线沿直线布置了N个工兵营地,Derek和Tidy的任务就是要监视这些工兵营地的活动情况。由于采取了某种先进的监测手段，所以每个工兵营地的人数C国都掌握的 阅读全文