随笔分类 -  a) 最小生成树

摘要:标准的最小生成树,一点隐藏题意的意思都没有。题意就是一个人想在任意两个城市开车,路上没有加油的,每个城市都有。每条路会有花费,求能遍历所有城市需要的至少汽油有多少。这里讲下最下生成树和最短路径的区别:最小生成树能够保证整个拓扑图的所有路径之和最小,但不能保证任意两点之间是最短路径。最短路径是从一点出... 阅读全文
posted @ 2017-05-05 11:24 Lawliet__zmz 阅读(245) 评论(0) 推荐(0) 编辑
摘要:Borg MazeTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 12944 Accepted: 4224DescriptionThe Borg is an immensely powerful race of enhanced h... 阅读全文
posted @ 2016-08-08 15:08 Lawliet__zmz 阅读(131) 评论(0) 推荐(0) 编辑
摘要:HighwaysTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 28368 Accepted: 12924DescriptionThe island nation of Flatopia is perfectly flat. Unf... 阅读全文
posted @ 2016-08-02 21:56 Lawliet__zmz 阅读(252) 评论(0) 推荐(0) 编辑
摘要:Truck HistoryTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 24751 Accepted: 9647DescriptionAdvanced Cargo Movement, Ltd. uses trucks of dif... 阅读全文
posted @ 2016-08-02 20:23 Lawliet__zmz 阅读(157) 评论(0) 推荐(0) 编辑
摘要:FrecklesTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 8309 Accepted: 3952DescriptionIn an episode of the Dick Van Dyke show, little Richie... 阅读全文
posted @ 2016-08-02 18:15 Lawliet__zmz 阅读(113) 评论(0) 推荐(0) 编辑
摘要:都是套路,换题不换意Agri-NetTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 51655 Accepted: 21544DescriptionFarmer John has been elected mayor of his ... 阅读全文
posted @ 2016-08-02 17:39 Lawliet__zmz 阅读(126) 评论(0) 推荐(0) 编辑
摘要:Agri-NetTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 51653 Accepted: 21544DescriptionFarmer John has been elected mayor of his town! One ... 阅读全文
posted @ 2016-08-02 17:28 Lawliet__zmz 阅读(139) 评论(0) 推荐(0) 编辑
摘要:Constructing RoadsTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 22440 Accepted: 9588DescriptionThere are N villages, which are numbered fr... 阅读全文
posted @ 2016-08-02 17:10 Lawliet__zmz 阅读(149) 评论(0) 推荐(0) 编辑
摘要:Prim算法1.概览普里姆算法(Prim算法),图论中的一种算法,可在加权连通图里搜索最小生成树。意即由此算法搜索到的边子集所构成的树中,不但包括了连通图里的所有顶点(英语:Vertex (graph theory)),且其所有边的权值之和亦为最小。该算法于1930年由捷克数学家沃伊捷赫·亚尔尼克(... 阅读全文
posted @ 2016-08-02 11:22 Lawliet__zmz 阅读(144) 评论(0) 推荐(0) 编辑

点击右上角即可分享
微信分享提示