network practice questions

; - } - return 0; - } in voidFencen () - { tomemset (BJ,0,sizeof(BJ)); +Tail=1; Head=0; dl[1]=0; bj[0]=1; - Do{ thehead++; *LLG x=Dl[head]; $LLG w=a[x].size ();Panax Notoginseng for(Llg i=0; i) - if(!bj[a[x][i]] v[x][i]>0) the { +tail++; dl[tail]=A[x][i]; Adeep[a[x][i]]=deep[x]+1; thebj[a[x][i]]=1; + } -} while(head!=tail); $ } $ voidInsert (llg x,llg y,llg z) - { - a[x].push_back (y); V[x].push_back (z); theA[y].

file Input.txt. The 1th line of the file has 2 positive integers m and N. M is the number of experiments, and N is the number of instruments. The next M-line, each row is an experimental data. The first number of sponsors agree to pay the fee for the experimentThe number of instruments to be used in the experiment. The number of n in the last line is the cost of configuring each instrument.result output:At the end of the program, the best protocols are output to the file output.txt. Line 1th is

; Wuf+=tmp; - if(!lim)returnF; About } $ } -d[u]=0; - returnF; - } AInlineintDinic () { + intres=0; the while(BFS (s,t)) res+=DFS (s,1e9); - returnRes; $ } the voidsolve () { the inti,j; the for(i=1; i) the for(j=1; j) -id[i][j]= (I-1) *n+J; in for(i=1; i) the for(j=1; j){ the if(Mp[i][j])Continue; About if((i+j)%2==0)//White the { theAdd_edge (S,id[i][j],1); theAdd_edge (Id[i][j],s,0); +

intU=q.front (); Q.pop (); inq[u]=0; + for(intI=hd[u];i;i=e[i].nxt) { A intv=e[i].v; the if(e[i].f>0 dis[v]>dis[u]+E[I].W) { +dis[v]=dis[u]+E[I].W; -pre[v]=i; $ if(!Inq[v]) { $inq[v]=1; - Q.push (v); - } the } - }Wuyi } the if(dis[t]!=0x3f3f3f3f)return 1; - return 0; Wu } - intsolve () { About inttmp=0x3f3f3f3f, res=0; $ while(SPFA ()) { -tmp=0x3f3f3f3f; - for(intI=pre[t];i

1, ENB antenna arrival angle (LTESCAOA) beyond the normal rangeIn the OMC-R measurement reporting technical requirements, this field is defined as:"Defines the estimated angle of a user's relative reference direction. The measurement reference direction should be true north, counterclockwise. can assist to determine the location of the user, providing location services, accuracy of 5 degrees. This measurement data represents the number of samples that meet the range of criteria in the omc-r stat

BalancingLoad balancing: http://cogs.yeefan.us/cogs/problem/problem.php?pid=741ExercisesFirst find out the average value of all warehouse inventory, set the surplus of the first warehouse is a[i],a[i] = The original inventory of the first warehouse-the average stock quantity. Create a binary map that abstracts each warehouse into two nodes Xi and Yi. Add additional source s sinks T.1, if a[i]>0, from S to Xi with a capacity of a[i], the cost of 0 of the forward edge.2, if a[i]3, each Xi to two

shipping each unit of goods from the I warehouse to the J retail store C[i,j]. Result outputAt the end of the program run, the output calculates the minimum shipping cost and the maximum shipping cost.Input File ExampleInput.txt2 3220 280170 120 21077 39 105150 186 122Output File ExampleOutput.txt48500 69140Consider all warehouses as Vertex XI in a binary graph, and all retail stores as Vertex Yi in a binary map to create an additional source S-sink T.1, from S to each XI a capacity for the war

The main topic: a grid chart, some of the points above may have some kind of key. There may be gates between nodes and nodes. Some doors require specific keys to pass, and some do not. The shortest time to start from (m,n).Idea: Hierarchical graph + state compression.F[i][j][k], where I and J describe the current location. K is the current key that has been compressed (because the number of keys is CODE:#include Network Flow 24

difference between routers and switches? What is domain name resolution? How to modify the local hosts file? What are the application scenarios and advantages of producer consumer models? What is a CDN? What is LVS and what is the role? What is the role of Nginx? What is the role of keepalived? What is the role of Haproxy? What is load balancing? What is RPC and application scenarios? The function and application of the Asynio module are briefly described . The function and application of the

Answers are provided to the written examination questions of a large network company. 1. there is a forum where the post data is huge. please briefly describe how to improve the efficiency of searching for posts. In terms of programs, the page cache technology can be used. There is a forum on the front-end interface. there is a huge amount of post data. please briefly describe how to improve the efficiency

Computer questions (Elementary)-Java Network Operations Socket implementation client-server-side communication II (Java) In the previous section, a client sends a request like a server. In this section, the server returns information to the client. The implementation principle is very simple. Based on the original principle, the server outputs a stream, you can implement the input stream on the client. The

For some questions about the network data transmission mechanism-Linux general technology-Linux programming and kernel information, see the following for details. When the kernel calls the driver's sending function dev_queue_xmit, the process is like this: Dev_queue_xmit ()-> qdisc_run ()->__ qdisc_run (dev)-> qdisc_restart ()-> dev_hard_start_xmit ()-> driver sending function, I cannot understand the fo

=GetChar (); } k=ret; returnc!='\ n';} InlinevoidAddedge (intXintYintf) {e[++cnt].nxt=g[x];g[x]=cnt;e[cnt].to=y;e[cnt].f=F;} InlinevoidAdde (intXintYintf) {Addedge (x,y,f); Addedge (Y,x,0);} InlineBOOLBFsintu) {memset (DEP,0,sizeof(DEP)); Dep[u]=1; Q.push (U); while(!Q.empty ()) {u=Q.front (); Q.pop (); for(intI=g[u];i;i=e[i].nxt)if(e[i].f>0!Dep[e[i].to]) {Q.push (e[i].to); Dep[e[i].to]=dep[u]+1; } } returndep[t];} InlineintDfsintUintf) { intret=0; if(u==t)returnF; for

"Description of the problem" the flight brigade has several drivers from all over the world who specialize in one type of aircraft, each of which has two pilots and requires a positive driver and a co-pilot. For a variety of reasons, such as co-ordination, some pilots cannot fly on the same plane and ask how to match the driver to make the most of the flight. , assuming that there are 10 drivers, the V1,V2,...,V10 represents up to 10 drivers, of which V1,V2,V3,V4,V5 is the pilot, and V6,V7,V8,V9

; - if(e[i].restdis[y]>dis[x]+e[i].cost) { thedis[y]=dis[x]+E[i].cost; *pre[y]=i; $ if(vis[y]==false){Panax Notoginsengvis[y]=true; - Q.push (y); the } + } A } the } + returndis[t]inf; - } $ voidUpdate () { $ intflow=inf; - for(inti=pre[t];i;i=pre[e[i^1].to]) -flow=min (flow,e[i].rest); the for(inti=pre[t];i;i=pre[e[i^1].to]) { -e[i].rest-=flow;Wuyie[i^1].rest+=flow; the } -Maxflow+=flow; mincost+=flow*Dis[

[maxn*MAXN];98 voidDfsintXBOOLQQ) About { - if(x==n)return;101 if(xN)102 {103 if(QQ) coutEndl;104DFS (x+n,qq); the if(!QQ) coutEndl;106 return;107 }108 for(intI=first[x];i;i=t[i].next)if(t[i].f==0!Vis[i])109 { thevis[i]=1;111 DFS (T[I].Y,QQ); the return;113 } the } the the voidInit ()117 {118scanf"%d%d",n,m);119 for(intI=1; i) - {121Cin>>S[i];122m[s[i]]=i;123 }124 for(intI=1; i) the {126 intX,y,tt;127Cin>

[24 questions about network stream] ---- problem solving (partial, continuous update...), ---- Problem SolvingCombined with pilots With PILOT: http://cogs.yeefan.us/cogs/problem/problem.php? Pid = 14Problem: create a virtual source sink andCode: http://cogs.yeefan.us/cogs/submit/code.php? Id = 148410Numerical Trapezoid Digit trapezoid: http://cogs.yeefan.us/cogs/problem/problem.php? Pid = 1, 738Question:Rul

+ b.tC. C = a.t + bD. C = a.t + b.t9. Please consider the following code: C results? (If you are unsure, run this lookup in Python at any time). AA = Np.random.randn (3, 3= NP.RANDOM.RANDN (3, 1= a*bA. This will trigger the broadcast mechanism, so B is copied three times, becomes (3,3), * represents the matrix corresponding element multiplied, so the size of C will be (3, 3)B. This will trigger the broadcast mechanism, so B is duplicated three times, becomes (3, 3), * represents matrix multipli