reduced to AD and BC, must be intersect?It turns out that this proposition is not necessarily, but it can be found that when it can be reduced to AD and BC, AD and BC must be disjoint. Doing so will result in AD+BC > AC+BD.So as long as can reduce the side of the right and, must be able to ensure that disjoint. Then the final state becomes the edge right and the smallest state, which is the minimum match. Can be done using the KM algorithm.Appears to be a data problem and cannot be processed us
HDU_2426
This topic is a perfect match for the maximum right. we need to pay attention to two points: 1. Deal with the negative edge. 2. Note that N and M are not necessarily equal.
For the processing of the first point, I have seen two ways to deal with: ① all the sides are initialized to the negative side, so that as the N-M between all the edge is to exist to match, if the number of matches with the positive edge weight is N, there is a solution. Otherwise, no solution is available. ② The e
Document directory
Analysis Model storming
Design Model storming
Why does this work?
Adopting model storming
Model storming is just in time (JIT) Modeling: You identify an issue which you need to resolve, you quickly grab a few team mates who can help you, the group names es the issue, and then everyone continues on as before. it usually common on agile projects, EXtreme programmers (xpers)Call it a stand-up design session or a customer Q A session, and it implements clearly co
Zoom (zoom.us) is a widely used online conferencing software. I believe you must be in office, conference, chat and other scenarios under the experience or use, as a mature business software, Zoom provides a stable real-time audio and video call quality, as well as whiteboard, chat, screen sharing, PPT screening and other common functions. But in today's browser becomes the mainstream of the era, real-time audio and video how willing to lag behind it?
interweaving of multiple characters ' story lines, and a product is the same. With these characters, we have a clue that we can draw a story.Here we can use 2 tools to help find clues: Impact map and user portrait (1, 2)You will find that when the team starts to organize different types of users, they have started to tell the story naturally, because to make a character clear, you have to think about what he is going to do, and the story naturally comes out. But at this stage, we should not be
For reference only !!!
Description: OpenMeetings is a multilingual video conferencing and Remote Instruction Software.
Video conferencing features the following features:
1. This solution is based on P2P technology, with low server pressure and smoothness. Users can obtain data from each other to relieve the pressure on the server.2. Instant communication between videos and audios allows you to view the video images of attendees and hear real-time sounds.3. The IM text chat function supports ins
the top is modified to enumerate the edges to find D value, the complexity of O (N2). In fact, the complexity of the KM algorithm can be achieved O (N3). We give each y vertex a "slack" function slack, which is initialized to infinity each time we start looking for an augmented path. While looking for an augmented path, when checking for edges (i,j), if it is not in the equal sub-graph, let
Floyd-w is the shortest distance from any point to any point, because of the high complexity, so in order to only a point to any point of time to easily time out, the Dijkstra algorithm is to solve a point to any point of the distance problem, can be used for the direction of the graph or the graph, only need to pay attention to the initialization of the good, In the same way that the FLOYD-W algorithm uses the critical matrix to store the graph, we also need an array to store the origin (1) dis
Contest (6)--host by BIT problem solving: Just like the cyclic tour in front of you.1#include 2 using namespacestd;3 Const intMAXN =310;4 Const intINF =0x3f3f3f3f;5 intW[MAXN][MAXN],LX[MAXN],LY[MAXN],SLACK[MAXN];6 intN,LINK[MAXN];7 BOOLS[MAXN],T[MAXN];8 BOOLMatchintu) {9S[u] =true;Ten for(intv =1; V v) { One if(T[v])Continue; A intD = lx[u] + ly[v]-W[u][v]; - if(!d) { -T[V] =true; the if(Link[v] = =-1||match (
HDU_3435
This is a perfect match for minimum weights. When I use the KM algorithm to create an adjacent table, I need to initialize the edge weight to MAX-w [e]. then, find the perfect match of the maximum right and convert the result back.
Because it is an undirected graph, we need to create two directed edges for each undirected edge.
#include#include#define MAXD 1010#define MAXM 20010#define MAX 10001#define INF 1000000000int first[MAXD], next[MAXM], v[MAXM], w[MAXM], N, M;int yM[MAXD], wM[
(Fabs (GAP) //If you meet the requirements, pay attention to floating point ah. Vis_boy[boy] =true; if(Match[boy] = =-1|| DFS (Match[boy])) {//find a guy who doesn't have a match, or the boy's sister can find someone else .Match[boy] =girl; return true; } } Else{Slack[boy]= Min (Slack[boy], GAP);//slack can be understood as the boy who wants to get a girl'
of their income. (Villagers who have the money to buy a house but not necessarily can buy it depends on what the village leader assigns).Input data contains multiple sets of test cases, the first row of each set of data input n, indicating the number of houses (also the number of people home), followed by n rows, the number of n per row represents the price of the room of the second village name (nOutput make the maximum revenue value for each set of data, one row for each set of outputs.Sample
Microsoft has integrated Microsoft NetMeeting 3.01 in Windows Server, which allows users to perform real-time video, audio, and data communications on internet/intranet. It provides a new way of talking, meeting, working, and sharing programs within the company, between the company and the company, through Internet/intranet. It has the following features:
(1) Sending a call to the user via internet/intranet;
(2) Talk with users through Internet/intranet;
(3) Sharing applications and documents
to Beijing opera, storytelling, and even some places Huangmei opera, I even once felt as long as there is a sound he will He usually do not like nonsense, do things to do things, rest on the rest, points of the clear, the back I know that there is a leopard-print folding Double is his, learned that he slept at noon too narrow, inconvenient to turn over, so bought a double, in fact, it is so simple. I need a reason to say hello to my brother, such as the technical details of this mobile payment
the c [I]-C [J] edge. If the points on both sides are different, the points on both sides are equal, and then the sides are completed, the weight of the completed edge is regarded as 0, after completing the km operation, you can calculate the values of d [I] And d [J] based on the values of a [I] and B [J. When creating a graph, if C [I]-C [J]
# Include # Include String . H> # Include # Define Maxn 70 # Define Maxd 410 # Define Maxm 810 # Define INF 0x3f3f3f Int N, m, D, first [maxn], E, n
the KM algorithm can be O (N3. Each y vertex is given a "relaxation amount" function slack, Which is initialized to an infinite number every time the augmented path is searched. When you check the edge (I, j) in the process of searching for the augmented path, if itNot equal subgraph, The slack [J] is changed to a smaller value of the original value and a [I] + B [J]-W [I, j. In this way, allY vertex not i
data contains multiple sets of test cases, the first line of each set of data entered N, indicating the number of houses (also the number of people in the home), followed by n rows, the number of n per row represents the first village name of the room price (nOutputPlease output the maximum revenue value for each set of data, one row for each group of outputs.Sample Input2 100 10) 15 23Sample Output123 template questions, organize the template/************************************************aut
the village leader assigns).Test Instructions Description: Because this is titled Chinese title, this is not translated here. algorithm Analysis: maximum weight matching problem,km algorithm for the entry question. Baidu km algorithm has a lot of relevant introduction, here no longer described. Explanation Point, km optimization: The slack array saves the value min (Lx[x]-ly[y]-w[x][y]) of each y in the Y-set (binary graph: X-Set and Y-set) that is n
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