; // **************************************** ******************** // Maximum Flow with minimum costAlgorithm // Spfa to find the shortest path // Adjacent matrix form // Initialization: CAP: capacity, no side is 0 // Cost: Cost, symmetric form, zero if there is no edge // C is the minimum fee // F is the largest stream. // **************************************** *************** Const Int Maxn = 200 ; Const Int INF =0x3fffffff
The SAP template for the largest stream has been used many times. Summary today (althoughCodeIt is not concise enough, but what you write seems to be clear. It is not easy to make mistakes)
It is said that there is no maximum stream that can card sap...
Const Int Maxn = 20010 ; // Maximum number of points Const Int Maxm = 880010 ; // Maximum number of Edges Const Int INF =0x3f3f3f ; Struct Node { Int From , To, next; Int CAP
Today contact the largest stream, the web has a lot of PPT, patience to see, and then hit a few times the code will probably understand the meaning ofEK algorithmThe key is to understand the meaning of estoppel, because every time when you choose a way, but this approach is not necessarily optimal, so we have to create a reverse side,To complete the policy of estoppel.Then it is probably always looking for the augmented path, changing the maximum value, until the augmentation path can not be fou
this.
Start nmcap/Network */capture/file T. CAP/stopwhen/frame (ipv4.address = ipconfig. local1_4address) and (ipv4.destinationaddress = 1.2.3.4)
Sleep 5
Blah.exe
Ping 1.2.3.4
We enable the running of nmcap by using the start command, so that nmcap runs in another process in another window (we can use/BParameters to make it run in the same window ).
The following parameter ,"/Network *"Tell NMCP to crawl on all NICs. You
This kind of question an operation increases how much, an operation reduces how much, asks at least just how many, in Midway does not appear the negative value, simulates again, uses one number to write down the largest can1#include 2#include 3 4 Const intHash= $;5 6 intn,num[ the],head[hash],next[ the];7 8 voidInsertints)9 {Ten inth=num[s]%HASH; One intu=Head[h]; A while(u) u=Next[u]; -NEXT[S]=HEAD[H];//the original list header becomes the next of S -Head[h]=s;//s becomes head[h] '
. (Guaranteed no heavy side with self-loop.)Output the first line, a number that represents the value of the non-graph. The second row, a number, represents the and of the values that are somewhat in the non-graph. Sample Input3 22-101 22 3Sample Output22HINTData conventionsnSample explanationThe value of 2 nodes is set to 0.SourceSolutionAt first see may be helpless, but see and XOR, you can consider decomposition into a binary each, then the practice hasDisassembled into binary to look at each
edge.2, from each Yi to t even a capacity of 1, the cost of 0 of the forward edge.3, from each XI to each YJ to connect a capacity for infinity, the cost of CIJ of the forward edge.The minimum cost of the maximum flow, the minimum cost flow is the minimum freight, the maximum cost of the maximum flow, the maximum cost flow value is the maximum freight.Concrete realization method See "Network flow 24 question-no.17 transport problem"Code:1 Const2maxn=100000000;3 4 var5Ot,ot1,ne1,cap1,ne,
next process with you.
2. Slice
2.1 Internal structure
Let's leave this line of code in the comments //fmt.Println(s1, "==========", s2) and say it later. When output b ========== b , the expected results of A and B have not been met. We know that slice does not store real values internally, but rather a reference to an array fragment whose internal structure is:
typestruct { uintptr lenint capint}
Where data is a pointer to an array element, Len refers to the number of elements slice
(0,0) 1 (0,1) 2 (0,2) 5 (1,0) 1 (8) (2,3) 1 (2,4) 7 (3,5) 2 (3,6) 5 (4,2) 7 (4,3 ) 5 (4,5) 1 (6,0) 5 (0) 5 (1) 2 (3) 2 (4) 1 (5) 4Sample Output156HintThe sample input contains the data sets. The first data set encodes a network with 2 nodes, power station 0 with Pmax (0) =15 and Consumer 1 with Cmax (1) =20, and 2 p Ower Transport lines with Lmax (0,1) =20 and Lmax (1,0) =10. The maximum value of Con is 15.The second data set encodes the network from Figure 1. A typical multi-so
Demo Effect:
The role of the suspension label everyone may know: the role of explanation, we can see in many parts of the computer, this time we use flash to make a suspension tag.
Step1: Prepare six icons, convert them to button, instance name B1,b2,b3,b4,b5,b6.OK, now let's do the tag:
Draw a rectangle with a rectangular tool without a border, choose the color yellow bar, press F8 to convert to movie clip, instance named Cap.
Double-click into edit
Title Link: http://poj.org/problem?id=1459Problem Solving Report:The power dispatching station does not involve the generation and consumption of the flow, regardless of the edmonds-karp algorithm, is to use the remaining network and the augmented path to solve the maximum flow in the network.Principle: The remaining network, is a kind of fallback, constructs after the remaining network, in the remaining network to find an augmented road, wherein the minimum flow, each side plus this minimum flo
Go Internal library function make, which has a signature function:
Func make ([]t, Len, cap) []t
T represents the type of element, the Make function has 3 parameters, the type of t element, Len length, cap capacity (cap optional). When make is called, make assigns an array and returns a slice that is produced from this array. If you do not fill in the
data packets from filling the entire hard disk.The command parameter for saving tcpdump packets to a file is-w xxx. cap.
Capture the eth1 packageTcpdump-I eth1-w/tmp/xxx. cap
Capture the packet of 192.168.1.123Tcpdump-I eth1 host 192.168.1.123-w/tmp/xxx. cap
Capture Port 80 of 192.168.1.123Tcpdump-I eth1 host 192.168.1.123 and port 80-w/tmp/xxx.
is 172.16.1.68 and the destination port is 80.
# Tcpdump-I eth0-vnn 'src host 172.16.1.59 and dst port 22 'or 'src host 172.16.1.68 and dst port 80'
16. Save the captured data packet records to the/tmp/fill file. after capturing 100 data packets, exit the program.
# Tcpdump? I eth0-vnn-w/tmp/fil1-c 100
17. read tcp packets from/tmp/fill records
# Tcpdump? I eth0-vnn-r/tmp/fil1 tcp
18. read data packets containing 172.16.1.58 from/tmp/fill records
# Tcpdump? I eth0-vnn-r/tmp/fil1 host 172.16.1.5
, according to the target type, if the flow is $f$, then the cost is $f^2$, the solution is to connect the capacity 1 of the cost is 1, 3, 5, 7, 9 ... 's Side!
This completes the composition.
1#include 2#include 3#include 4#include 5 using namespacestd;6 #defineINF (17 #defineMAXN 111118 #defineMAXM 111111*49 structedge{Ten intU,v,cap,cost,next; One }EDGE[MAXM]; A intVS,VT,NV,NE,HEAD[MAXN]; - voidAddedge (intUintVintCapintCost ) {
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.