摘要：地铁修建 试题编号： 201703-4 试题名称： 地铁修建 时间限制： 1.0s 内存限制： 256.0MB 问题描述： 问题描述 A市有n个交通枢纽，其中1号和n号非常重要，为了加强运输能力，A市决定在1号到n号枢纽间修建一条地铁。 地铁由很多段隧道组成，每段隧道连接两个交通枢纽。经过勘探，有m 阅读全文

摘要：天气晴朗的魔法 这样阴沉的天气持续下去，我们不免担心起他的健康。 51nod魔法学校近日开展了主题为“天气晴朗”的魔法交流活动。 N名魔法师按阵法站好，之后选取N - 1条魔法链将所有魔法师的魔力连接起来，形成一个魔法阵。 魔法链是做法成功与否的关键。每一条魔法链都有一个魔力值V，魔法最终的效果取决 阅读全文

摘要：Arctic Network The Department of National Defence (DND) wishes to connect several northern outposts by a wireless network. Two different communication 阅读全文

摘要：Bad Cowtractors Bessie has been hired to build a cheap internet network among Farmer John's N (2 <= N <= 1,000) barns that are conveniently numbered 1 阅读全文

摘要：Building a Space Station You are a member of the space station engineering team, and are assigned a task in the construction process of the station. Y 阅读全文

摘要：Jungle Roads The Head Elder of the tropical island of Lagrishan has a problem. A burst of foreign aid money was spent on extra roads between villages 阅读全文

摘要：QS Network Sunny Cup 2003 - Preliminary Round April 20th, 12:00 - 17:00 Problem E: QS Network In the planet w-503 of galaxy cgb, there is a kind of in 阅读全文