Give you a picture of a network flow may have traffic imbalance and traffic > capacity conditions existOne unit of cost per unit of traffic/capacity to be adjustedAsk at least how much it takes to make the original image adjust to the correct (feasible) network flowSet the current edge information to (U,V,F,C) that is, from u to v there is a flow of f, the capacity of C has a forward edgeThe added edge information is [u,v,f,c] that is, add a bar from
Surprised, Tle half a day to find floating point arithmetic is to add esp, really learned.Topic Link Https://www.nowcoder.com/acm/contest/207/GTest instructions is to give you n points, each point has SI personal and bi food backpack, then the M-side, each side has an electric shock probability pi, the first person through this side will not electric shock, ask you to let everyone eat meal of the minimum electric shock probability.Method: If the Si>bi connects 0 to I capacity for si-bi, the
Minimum Cost
Time limit:4000 Ms
Memory limit:65536 K
Total submissions:13242
Accepted:4500
DescriptionDearboy, a goods victualer, now comes to a big problem, and he needs your help. in his sale area there are n shopkeepers (marked from 1 to n) which stocks goods from him. dearboy has m supply places (marked from 1 to m), each provides k different kinds of goods (marked from 1 to K ). once shopkeepers order goods,
/*************************************** * *********** Algorithm introduction: the maximum flow of any capacity network is unique and definite, but its maximum flow f is not unique. Since the maximum flow f is not unique, if there is not only a capacity limit but also a cost of r on each arc, that is, there is a unit cost parameter on each arc, the maximum flow is guaranteed; there is also a maximum flow pr
The estimated cost isComplete Project ActivitiesThe process of approximate estimation of required funds. Cost prediction made based on known information at a specific time point.
Rough Rom estimation of the number of items available in the startup phase
Input:
Scope reference: Scope statement, work breakdown structure, and work breakdown structure dictionary.
Project progress plan
Human resources
The article is very detailed and has a great inspiration for the algorithm for learning the maximum flow of the minimum cost.
Attachment to original post addressDijkstra + Ford-fulksonff algorithm modified by the maximum flow at minimum cost
The modified Dijkstra is actually the same as the Johnson algorithm.
A Simple Algorithm for maximizing the minimum cost is
Title DescriptionTitle, a network diagram is given, along with its source and sink points, each edge is known for its maximum flow rate and unit traffic cost, and the minimum cost of its maximum flow and maximum flow is calculated.Input/output formatInput format:The first line contains four positive integers n, M, S, T, which represent the number of points, the number of forward edges, the number of source
Recently exposed the cost of taking a wife in China's cities, Shenzhen to 2.08 million, men's ruin, do not eat not to drink also to work 30 years to marry to Shenzhen, a medium-term wife, such a high cost of marrying a bitter-forced programmer how to do. Whether it's bat's it tech guy or a small startup's program ape, it's generally hard to find a girlfriend, let alone get married. Why it is difficult for i
Entrepreneurship at the time of graduation
Graduated from the famous University of Wei bin on the university campus has tried to do agent, from the simplest phone card, to the agency credit card bid, almost on the campus of the business he has tried. When he graduated in 2007, Wei bin thought "it's time to get in touch with real business." In July, he and his high school students in agricultural colleges and universities together, in Nanjing to run a Biotechnology Co., Ltd., the goal is to do wa
Real Cost exposure of ten lucrative industries
1: cosmetics
Men may be skeptical. Is dabao a lucrative product? No. Cosmetics here refer to imported high-end products.
SK-II's famous fairy water retail price in China is 560 yuan, and its manufacturing cost is only 6.5 Yuan. Surprised? Even if R D costs are included, the cost per ticket cannot exceed RMB 10. Shi
Concrete Mixing tower (Station) management and cost accounting
1) how to manage production? How to confirm the actual concrete mix ratio of the sub-item WBS?
2) how to determine the planned cost of concrete? How is the actual cost calculated? Cost consideration: is it a full cost
Minimum editing cost problem:For two strings A and B, we need to insert, delete, and modify a string into B string, define the cost of C0,C1,C2 for three operations, design an efficient algorithm to find the minimum cost of changing a string to B string.Given two strings a and b, and their lengths and three operating costs, return the minimum
First, the application of the backgroundEnterprises in recent years rapid development, scale is also growing, and information transmission and feedback methods are still relatively backward, with the continuous development of information technology, people began to try to use technical means to improve the environment. Enterprise projects continue to increase, and as a senior manager, through the level of escalation through the way although can understand the operation of the project, but often
Split each point into the origin A and pseudo point b,a->b there are two one-way (adjacency table implementation needs to establish a reverse empty edge, and to ensure that the loop cost and 0), a residual capacity of 1, the cost of its own negative value (easy to calculate the shortest path), the other residual capacity +∞, the cost is 0 ( The point is guarantee
Hardware design cost savings experience notes1, these pull the high pull low resistance with the big resistance relationship is not small, choose an integer 5K barThere is no 5K resistance on the market, the closest is 4.99K (accuracy 1%), followed by 5.1K (accuracy 5%), its cost is 20% higher than the accuracy of 4.7K 4 times times and twice times. 20% the resistance value of the precision is only 1, 1.5,
Solution report
Question:
There are n stores, M providers, and a matrix of K commodities
Ideas:
The question of creating a graph cannot directly build all the information into a graph, because N and M have a relationship with K. If we build a graph like that, we need to split K into M classes, the K type that each warehouse connects to the warehouse, and then connects to N at a cost,
But this is actually not the case. We will find that the relations
Idea: This question mainly refers to the creation of graphs for a long time. It was not judged to be full before, so I read this knowledge point again, then we found that there was a bug when the maximum flow of our minimum fee was full, and it was changed.
Figure: start to see the question to know that this question is the largest flow of the minimum cost, and then do it without looking at the explanation. Then I couldn't find the answer to my self-b
within the organization, and the organizational costs will continue to rise.
In addition, from the perspective of Chinese folk culture, if you want to make people loyal, you have to pay a lot. What is loyalty? Many things often run out of the way with the boss's ideas. For example, if you have a very creative boss who is worried about many non-standard practices in the early stage of the business, he thinks that the loyalty of financial personnel is very important. He finally came up with a tr
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The proliferation of virtual servers eliminates the cost-saving benefits that many IT organizations crave when applying server virtualization, said an IT professional who led the company's virtualization initiative.
Boeing computing infrastructure designer Jett Thompson says we are under great pressure to find ways to save money as much as possible. Virtualization has been one of the hottest topics since virtualization has found many of the benefits
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