# circuit and network book

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### Data communication and network note-virtual circuitnetwork: Frame Relay and ATM

Document directory Frame Relay ATM Virtual circuit switching has been introduced in previous articles, see: http://blog.csdn.net/todd911/article/details/9069447 Here we will introduce the two middle-Wan technology using virtual circuit switching: Frame Relay and ATM.Frame Relay Frame relay is a virtual circuit wide area

### "BZOJ3931" "CQOI2015" network throughput shortest circuit + network flow

LongLen) {e[++cnt].v=v; E[cnt].len=len; E[cnt].next=head[u]; head[u]=cnt;} Queuelong long>QLong LongD[n];BOOLBFS () {memset(d,0,sizeofD); while(!q.empty ()) Q.pop (); Q.push (1), d[1]=1;Long LongI,u,v; while(!q.empty ()) {U=q.front (), Q.pop (); for(I=head[u];i;i=e[i].next) {if(!d[v=e[i].v]e[i].len) {d[v]=d[u]+1;if(v==n)return 1; Q.push (v); } } }return 0;}Long LongDinic (Long LongXLong LongFlow) {if(x==n)returnFlowLong LongRemain=flow,k;Long LongI,v; for(I=head[x];ir

### Computer network series-what is circuit switching and packet switching?

Group First, let's look at the concept of the next grouping. The so-called grouping is to divide a packet into smaller packets. For example, for a 10GB packet, it is not always a one-time delivery of the past bar, but it is divided into a number of small packets sent past. Structure diagram for each block of data:File headers are typically descriptive data, such as source and destination addresses, data types, and so on. The data part is what is really going to be communicated to the objectCircu

### The solution network flow of Euler circuit of poj1637 mixed graph

Topic Links:POJ1637Test instructionsA picture that gives a forward and a no-edge, asking if there is a Euler circuit that passes through all sides only onceProblem Solving Ideas:The solution of Euler circuit of mixed graph requires the use of network flow, and the concrete modeling method is as follows:1, first to all the non-directional direction, and then the s

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### Python3 crawler crawls China BookNetwork (Amoy Book Group) record

I was just beginning to learn the Python reptile small white, opened only for the record of their own learning process, convenient to do reviewTo crawl a link: http://tuan.bookschina.com/To crawl content: Book name, book price, and link to a preview mapThis article uses the PY packages: requests, BeautifulSoup, JSON, CVSOpen the Chinese Book

### Euler circuit determination of mixed graphs of ACM/ICPC-network flow (POJ1637)

Network flow judgment mixed Graph//through the network flow so that the points of the same degree of access possible, otherwise the weight of the impossible//residual network is the number of changes in the direction, that is, n two-way Edge has n times//time:157ms memory:348k# Include Euler circuit determination of mi

### Poj21__optimal milking (maximum network flow dinic + minimum circuit flody + two points)

assignment for each cow to some milking machine so that the distance the furthest-walking cow travels is minimized (and, of course, the milking machines are not overutilized ). at least one legal assignment is possible for all input data sets. cows can traverse several paths on the way to their milking machine. Input* Line 1: a single line with three space-separated integers: K, C, and M. * Lines 2 .....: Each of these K + C lines of K + c space-separated integers describes the distances betw

### ICPC Dalian Station Network race 1009 Short Circuit

BOOLFlag =false; the for(intI=0; i)126 {127scanf"%d%d",u,v); - Add (u,v,a);129 Add (v,u,a); the 131 } thescanf"%d",start);133 Dijkstra (N);134 BFS (n,b);135 BOOLfirst=0;136 for(intI=1; i)137 {138 if(I==start)Continue;139 if(first) printf (" "); \$printf"%d", Dis[i]);141first=1;142 }143printf"\ n");144 }145 }146 return 0;147 }148 149 Max /*151 the 115

### Bzoj 3931 Cqoi 2015 network throughput shortest circuit + maximum flow

)returnFLong Longtemp = f; for(inti = head[x]; I i = _next[i])if(Flow[i] deep[aim[i]] = = Deep[x] +1 temp) {Long Longaway = Dinic (Aim[i], min (flow[i], temp));if(!away) deep[aim[i]] =0; Flow[i]-=away; flow[i^1] + = away; Temp-= away; }returnF-temp; }}solver;structedge{intX, y, Z;voidRead () {scanf("%d%d%d", x, y, z); }}edge[maxe];intpoints, edges;intHEAD[MAXP], total;int_next[maxe], aim[maxe];Long LongLength[maxe];inline voidADD (intXintYLong LongLen) {_next[++total]

### "Unix/linux Network log analysis and Traffic monitoring" new book release

"Unix/linux Network log analysis and Traffic monitoring" new book release650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/53/DB/wKiom1RylxSi_GcGAAXqktZbpqQ386.jpg "title=" 6- S.jpg "alt=" Wkiom1rylxsi_gcgaaxqktzbpqq386.jpg "/> 82 percent booking is now available. http://item.jd.com/11582561.html 650) this.width=650; "Src=" http://s3.51cto.

### "Unix/linux Network log analysis and Traffic monitoring" new book release

This book from the Unix/linux system of raw logs (raw log) collection and analysis, and gradually into the log audit and computer forensics link. The book provides a number of cases, each case with a vivid note of the network after the invasion, management personnel to carry out the process of system forensics and recovery, case analysis techniques with the story

### "React Native and Combat" book serial "react Native network request and list binding"

This article is my published book "React Native and actual combat" serial sharing, the book by the mechanical Industry publishing house, the book detailed React Native framework underlying principles, React Native component layout, components and API Introduction and code combat, and React Nati ve and IOS, Android platform of the mixed development of the underlyi

### "Cloud computing network Zhu Ji Nanxiong" new book prizes probation activities

have more than three words, You can post several comments separately.4, Sdnlab will be at the end of the event, according to the quality of the answer selected by the Netizen "cloud computing network Zhu Ji Nanxiong" books as a reward.5, Event Date: 2015 3 Month 10th- year March 316, the event Prize: "Cloud computing network Zhu Ji Nanxiong"ten 7, if you read the book

### "Network Marketing actual practice password" book Review Essay Award list announced

"Network Marketing actual practice password" book Review Essay Award list announced About the "Network Marketing Practice password" a book of the essay activities have been a complete success, during this period, thank the vast number of netizens enthusiastic participation, but also thank the vast number of netizens

### C Security Coding Standard: the development of a safe, reliable, stable system of 98 rules (Original book 2nd edition)--Interactive Publishing network

uniform set of rules that are determined by the needs of the project and the organization, rather than simply using the familiar approach of the programmer. Once determined, these criteria can be used as indicators for evaluating source code (using manual or automated processes). cert Coding rules are widely adopted in the industry. At the Cisco annual SECCON meeting in October 2011, Cisco Systems announced the adoption of the CERT C Security coding standard as the benchmark programming standar

### C # Network programming through the Watercress API access to book information (a)

This article is mainly about how to get a book through the Watercress API information, initially see this content my initial idea is in the " C # Network Programming Web page simple download implementation "through the HttpWebResponse class to download the source code, and then through the regular expression analysis to get the node tag to get information." But later found it possible to pass Watercress API

### [Write neural networks by yourself]-A neural networkbook that everyone can learn

"Self-built Neural Networks" is an e-book. It is the first and only Neural Network book on the market that uses Java. What self-built Neural Networks teach you: Understand the principles and various design methods of neural networks, and make it easy to use ground gas; Understand the implementation of each component of the neural

### [Interactive publishing network] Introduction to algorithms: 3rd version of the original book. Now, you can get 8 yuan cash coupons for special activities.

[Interactive publishing network] "Introduction to algorithms: 3rd version of the original book" is now available to receive 8 yuan cash coupons after purchase. There are some rigorous but not comprehensive descriptions in the relevant algorithms; others involve a large number of subjects, but lack rigor. This book integrates rigor and comprehensiveness, discus

### Mac book air and virtual box network visits install CENTOS7 Mini

does not ping the virtual machine IP, check the virtual machine XP is not open the firewall, shut down.However, the above settings in the virtual machine is not accessible to the public network, because the network card and my route is not a network segment, the solution is to add a network adapter to the virtual mach

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