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Contestants Division Description In the new ACM-ICPC Regional Contest, a special monitoring and submitting system will be set up, and students will be 阅读全文
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Information Disturbing Problem Description In the battlefield , an effective way to defeat enemies is to break their communication system.The informat 阅读全文
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The more, The Better Problem Description ACboy很喜欢玩一种战略游戏，在一个地图上，有N座城堡，每座城堡都有一定的宝物，在每次游戏中ACboy允许攻克M个城堡并获得里面的宝物。但由于地理位置原因，有些城堡不能直接攻克，要攻克这些城堡必须先攻克其他某一个特定 阅读全文
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Rebuilding Roads Description The cows have reconstructed Farmer John's farm, with its N barns (1 <= N <= 150, number 1..N) after the terrible earthqua 阅读全文