题目大意:给出计算机之间的连接配置,询问某两台计算机是否相连.判断两个点是否在同一个连通分量里,用并查集处理. #include <cstdio> #define MAXN 1000000 int p[MAXN]; int find(int x) { return (x == p[x]) ? x : p[x] = find(p[x]); } int main() { #ifdef LOCAL freopen("in", "r", stdin); #end…

https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=251  Network  A Telephone Line Company (TLC) is establishing a new telephone cable network. They are connecting several places numbered by integers…

Maybe this is due to the current version, but the current answer doesn't work on my system (Docker 0.7.2 with base Ubuntu image). The solution is explained here in the official Docker documentation. For the lazy ones: edit /etc/default/ufw to change…

模板题,注意输出 #include <stdio.h> #include <string.h> #include <algorithm> #include <math.h> #include <vector> #include <stack> using namespace std; typedef long long LL; ; int head[N],tot,n; struct Edge{ int v,next; }edge[N*…

这个题目关键在于把无根树变成有根树:这个用dfs: 然后用贪心的方法,从最深的那层开始,每次找到节点的上k层,建一个服务器,然后用一个dfs把这个服务器能够覆盖的节点标记: #include<cstdio> #include<cstring> #include<vector> #include<algorithm> #define maxn 1005 using namespace std; vector<int>node[maxn],deep[…

输入数据处理正确其余的就是套强联通的模板了 #include <iostream> #include <cstdlib> #include <cstdio> #include <algorithm> #include <vector> #include <queue> #include <cmath> #include <stack> #include <cstring> using namespa…

主要思路:使用tarjan选取一个根节点建立一个棵搜索树,判断一个点是割点的充分必要条件是,对于一个节点u如果他的孩子节点v的low值大于等于u的出生日期dfn值,进行下一步判断,如果u是我们选的根节点,我们还需要判断一下他的孩子节点的个数是否大于一,如果大于一则他是割点,反之不是.如果u不是根节点,那他就是割点了.因为我是第一次接触targin算法,跟着学姐的课件和自己的感觉敲了下去,WA已经刷屏了,原因就是我错误的认为根节点只要度数大于一就可以(学姐课件上就是先写的这个啊T T),其实是他也…

<题目链接> 题目大意: 给出一个无向图,求出其中的割点数量. 解题分析: 无向图求割点模板题. 一个顶点u是割点,当且仅当满足 (1) u为树根,且u有多于一个子树. (2) u不为树根,且满足存在(u,v)为树枝边(或称 父子边,即u为v在搜索树中的父亲),使得 dfn(u)<=low(v).(也就是说V没办法绕过 u 点到达比 u dfn要小的点) 注:这里所说的树是指,DFS下的搜索树. #include <cstdio> #include <cstring&g…

#include<iostream> #include<cstring> #include<vector> using namespace std; +; int n,s,k; vector<int> tree[maxn],nodes[maxn]; int fa[maxn]; bool covered[maxn]; void dfs(int u,int f,int d) { fa[u]=f; int nc=tree[u].size(); &&…

题目大意: 在非叶子节点上安装最少的服务器使得,每个叶子节点到服务器的距离不超过k. 贪心+图上的dfs. 先从深度最大的叶子节点开始找.找到父节点后再用这个父节点进行扩充. /* *********************************************** Author :guanjun Created Time :2016/5/10 23:15:38 File Name :7.cpp *********************************************…

题目链接:https://vjudge.net/contest/67418#problem/B 题意:给一个无向连通图,求出割点的数量.首先输入一个N(多实例,0结束),下面有不超过N行的数,每行的第一个数字代表后面的都和它存在边,0表示行输入的结束. 题解:简单的求割点模版,所谓割点就是去掉这一个点还有于这个点链接的边之后使得原来的图连通块增加. 由于这是模版题代码会加上注释. #include <iostream> #include <cstring> using namesp…

题目链接:https://vjudge.net/problem/UVA-1267 首先我们要把这样一棵无根树转换成有根树,那么树根我们可以直接使用$VOD$. 还有一个性质:如果深度为$d$的一个节点并不能被覆盖,那么我们在它的第$k$级的祖先(父亲为第一级)那里建一个$VOD$是最优的,其实很好证明它不仅能覆盖这些点,还能覆盖更多的点. 思路: 1.进行第一遍dfs,将无根树变成有根树.在建树的过程中用$node[d][i](d>k)$表示第$d$层有不能被覆盖到的点,那么可以避开“按深度排序…

curl - transfer a URL curl SYNOPSIS curl [options] [URL...] DESCRIPTION curl is a tool to transfer data from or to a server, using one of the supported protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP…

Start > Run > gpedit.msc Locate; Computer Configuration/Administrative Templates/Network/Network Connections Disable the following policies; Prohibit installation and configuration of Network Bridge on your DNS domain network Prohibit use of Interne…

http://technet.microsoft.com/en-us/library/cc756878(v=ws.10).aspx In this section Network Load Balancing Terms and Definitions Network Load Balancing Architecture Network Load Balancing Protocols Application Compatibility with Network Load Balancing…

http://technet.microsoft.com/en-us/library/bb742455.aspx Abstract Network Load Balancing, a clustering technology included in the Microsoft Windows 2000 Advanced Server and Datacenter Server operating systems, enhances the scalability and availabilit…

1.查看网络状态systemctl status NetworkManager You can use the  systemctl status NetworkManager  command to verify its current status. When NetworkManager comes up, it reads the network card configuration scripts, which are in /etc/sysconfig/network-scripts…

为方便问题发生后,问题原因的分析排查,我们可以在服务器中事先部署如下脚本,方便故障发生后,问题原因的分析排查 脚本部署方法: 1.将脚本[linux_reports.sh]上传到服务器 2.登陆虚拟机,并切换到root用户 3.执行命令: chmod +x  <path>/linux-reports.sh  [<path>替换成实际脚本上传的目录] 4.执行命令:crontab -e 5.添加定时任务:* * * * * <the path of the script>…

Transmitting Network Data Using Volley GET STARTED DEPENDENCIES AND PREREQUISITES Android 1.6 (API Level 4) or higher VIDEO Volley: Easy, Fast Networking for Android Volley is an HTTP library that makes networking for Android apps easier and most imp…

This article introduces the networking part of Elasticsearch. We look at the network topology of an Elasticsearch cluster, which connections are established between which nodes and how the different Java clients works. Finally, we look a bit closer o…

netstat (network statistics) is a command line tool for monitoring network connections both incoming and outgoing as well as viewing routing tables, interface statistics etc. netstat is available on all Unix-like Operating Systems and also available…

using UnityEngine; using System.Collections; public class NetworkTest : MonoBehaviour { ;//端口号 string serverIP = "172.16.19.30";//服务器ip string yourState = ""; // Use this for initialization void Start () { } // Update is called once pe…

Lidgren.Network – an introduction to networking in C# games http://genericgamedev.com/tutorials/lidgren-network-an-introduction-to-networking-in-csharp-games/ Posted on 2015-03-09 by Paul Scharf Ten or so days ago I started working on a new project –…

Optimizing Downloads for Efficient Network Access Previous  Next 1.This lesson teaches you to Understand the radio state machine Understand how apps can impact the radio state machine Efficiently prefetch data Batch transfers and connections Reduce t…

Optimizing Server-Initiated Network Use This lesson teaches you to Send Server Updates with GCM Network traffic sent by server programs to your app can be challenging to optimize. A solution to this problem is for your appp to periodically poll the s…

Optimizing User-Initiated Network Use This lesson teaches you to Pre-fetch Network Data Check for Connectivity or Listen for Changes Reduce the Number of Connections Quick handling of user requests helps ensure a good user experience, especially when…

Collecting Network Traffic Data 1.This lesson teaches you to Tag Network Requests 标记网络类型 Configure a Network Test Build Type 在as中配置测试模式才能测试网络 Deploy the Network Test APK 在真机上部属网络调试应用 Run Network Traffic Tool NetWork Traffic 工具 The network traffic gen…

In one embodiment, a network management system (NMS) determines an intent to initialize a request-response exchange with a plurality of clients in a low power and lossy network (LLN). In response, the NMS adaptively schedules corresponding responses…

In one embodiment, a network architecture comprises minimalistic connected objects (MCOs), distributed intelligence agents (DIAs), and central intelligence controllers (CICs). MCOs have limited intelligence sufficient to perform their respective desi…

This application discloses methods for creating self-organizing networks implemented on heterogeneous mesh networks. The self-organizing networks can include a computing cloud component coupled to the heterogeneous mesh network. In the methods and co…