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题目描述 Description Have you ever played quoit in a playground? Quoit is a game in which flat rings are pitched at some toys, with all the toys encircled 阅读全文
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题目描述 Description Xaviera现在遇到了一个有趣的问题。平面上有N个点，Xaviera想找出周长最小的三角形。由于点非常多，分布也非常乱，所以Xaviera想请你来解决这个问题。为了减小问题的难度，这里的三角形也包括共线的三点。 输入描述 Input Description 第一行 阅读全文
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题目描述 Description The Pizazz Pizzeria prides itself in delivering pizzas to its customers as fast as possible. Unfortunately, due to cutbacks, they can 阅读全文
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题目描述 Description Once upon a time, there was a traveler. He plans to travel using stagecoaches (horse wagons). His starting point and destination are 阅读全文
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题目描述 Description You are given a tree with N nodes. The tree’s nodes are numbered 1 through N and its edges are numbered 1 through N − 1. Each edge is 阅读全文
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题目描述 Description Last years Chicago was full of gangster fights and strange murders. The chief of the police got really tired of all these crimes, and 阅读全文
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题目描述 Description Background The knight is getting bored of seeing the same black and white squares again and again and has decided to make a journey a 阅读全文
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题目描述 Description On Planet MM-21, after their Olympic games this year, curling is getting popular. But the rules are somewhat different from ours. The 阅读全文
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题目描述 Description Z国的骑士团是一个很有势力的组织，帮会中汇聚了来自各地的精英。他们劫富济贫，惩恶扬善，受到社会各界的赞扬。最近发生了一件可怕的事情，邪恶的Y国发动了一场针对Z国的侵略战争。战火绵延五百里，在和平环境中安逸了数百年的Z国又怎能抵挡的住Y国的军队。于是人们把所有的希望都 阅读全文
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题目描述 Description 在经济全球化浪潮的影响下,习惯于漫步在清晨的乡间小路的邮递员Blue Mary也开始骑着摩托车传递邮件了。 不过，她经常回忆起以前在乡间漫步的情景。昔日，乡下有依次编号为1..n的n个小村庄，某些村庄之间有一些双向的土路。从每个村庄都恰好有一条路径到达村庄1（即比特 阅读全文