题意 Link 给出一张$n$个点的无向图,每次询问两点之间边权最大值最小的路径 $n \leqslant 15000, m \leqslant 30000, k \leqslant 20000$ Sol 很显然答案一定在最小生成树上,但是此题还有一个更为玄学的做法—Kruskal重构树 它是在Kruskal算法上改进而来的. 算法流程: 对于此题来说,将边权从小到大排序 用并查集维护两点的联通性,若祖先不相同,那么新建一个节点,权值为边权.左右儿子分别为两个点 这样建出来的树,我们称之为Kru…
给你N个点的无向图 ( <= N <= ,),记为:…N. 图中有M条边 ( <= M <= ,) ,第j条边的长度为: d_j ( < = d_j < = ,,,). 现在有 K个询问 ( < = K < = ,). 每个询问的格式是:A B,表示询问从A点走到B点的所有路径中,最长的边最小值是多少? Input 第一行: N, M, K. 第2..M+1行: 三个正整数:X, Y, and D ( <= X <=N; <= Y <…
environment Red Hat Enterprise Linux 5.4 or later Red Hat Enterprise Linux 6.0 or later KVM virtual machines question How do I configure a bridged network interface for KVM using Red Hat Enterprise Linux 5.4 or later? On RHEL 6, what is the recommend…
Cable TV Network Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 4702 Accepted: 2173 Description The interconnection of the relays in a cable TV network is bi-directional. The network is connected if there is at least one interconnecti…
Network Basic Commands Summary set or modify hostname a) temporary ways hostname NEW_HOSTNAME, but if you reboot your system, it will disabled. b) permanent ways: edit "/etc/sysconfig/network" HOSTNAME, then restart system, it will effect…
IIS错误提示: The current identity (NT AUTHORITY/NETWORK SERVICE) does not have write access to 'C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files'. “/”应用程序中的服务器错误. 当前标识(NT AUTHORITY/NETWORK SERVICE)没有对“C:/WINDOWS/Microsoft.NET/Framewo…