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SOURCE:HDU 3790 Shortest Path problemhttp://acm.hdu.edu.cn/showproblem.php?pid=3790Problem DescriptionGive you n points, M without the edge, each side has a length D and spend P, give you the beginning of the end of T, the minimum distance from the output starting point to the end point and the cost, if the shortest distance there are multiple routes, the output is the least cost.InputEnter N,m, the number of the point is 1~n, then the M line, 4 numbe

TransportationTime limit:2000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)Total submission (s): 2670 Accepted Submission (s): 1157Problem Descriptionthere is N cities, and M directed roads connecting them. Now the want to transport K units of the goods from the City 1 to the city N. There is many robbers on the road and so you must be very careful. The more goods your carry, the more dangerous it is. To being more specific, for each road I, there is a coefficient ai. If you wan

Test instructionsAdd capacity to some sides of a network, increasing the sum of the maximum to K, making the maximum flow maximum.Cost flow: The cost of increasing unit traffic on an edge.Then it is possible to build 2 edges between 2 points, and the first given edge (u,v,x,0) has an edge cost of 0At the same time the other side (u,v,k,1) costs 1, you can find the maximum flow by limiting the corresponding

The topic of the first fee flow---In fact---still do not understand, only know along the shortest path to find the augmented roadBuilding MapSource point to 1 with a capacity of 2 (because to go back and forth), the cost is 0 of the edgeN to a meeting point with a capacity of 2 and a cost of 0 sidesThe other one is the one that was typed in the title.In addition, the problem is the non-direction side-----MA

This article comes from NetEase cloud community.How can you quickly get a large number of target users at a low cost, rather than a protracted war with your competitors?This is not common on the internet today. Now, most of the industry is already a long time competition in the Red Sea, and the blue Ocean market technology, resource barriers are very high, the general product is far behind. In the fierce competition of the Red Sea market, how can we a

This article comes from NetEase cloud community.How can you quickly get a large number of target users at a low cost, rather than a protracted war with your competitors?This is not common on the internet today. Now, most of the industry is already a long time competition in the Red Sea, and the blue Ocean market technology, resource barriers are very high, the general product is far behind. In the fierce competition of the Red Sea market, how can we a

From: http://www.cnblogs.com/ms0017/archive/2011/08/17/Microsoft-NET-Mono-MySQL-MVC-Linux-Large-WebSite.html In the previous article (http://www.cnblogs.com/ms0017/archive/2011/07/26/2117676.html), lists the domestic and foreign development of large websites with ASP. NET. Finally, the cost comparison between large websites developed with. NET and lamp/Java platforms is mentioned. In fact, in many cases, the charges are not necessarily higher than the

There was a saying that users convert a search engine in just 27 seconds, with little cost. The idea is to question the soundness of Google's business model. On the Internet, you change a mailbox, you need to notify all your contacts, the cost is very high. Another portal to watch the news, the cost is lower, but the habit and the level of editing will also stop

This article gives you a detailed introduction to the selection of wireless routers and describes how to make a careful selection. I believe that reading this article will be of great help to you to purchase a vro in the future. A wireless router is a device used to connect a home or enterprise LAN to the Internet. A wireless router can provide greater mobility than a wired router to a portable PC. Routers work like firewalls because they hide the IP addresses of each PC from the Internet. The n

Idea: At the beginning, I knew it was the maximum flow of the minimum cost, because I had to find the best, and m and H had to be matched one by one, therefore, if it is not a Bipartite Graph Match, It is the maximum flow with the minimum cost. However, at the beginning, I was still wondering how to find the minimum cost between m and H. Do I need to use DFS to s

2726: [SDOI2012] Task schedule time limit:10 Sec Memory limit:128 MBsubmit:868 solved:236[Submit] [Status] [Discuss] There are n tasks on the description machine that need to be processed, and they form a sequence. These tasks are labeled as 1 to N, so the sequence is arranged in 1,2,3...N. These n tasks are divided into batches, each containing several contiguous tasks. Starting at 0, these tasks are processed in batches, and the time required to complete the task of the first I is TI.

Question address: POJ2195 I am the first to get my career expenses !! After the invitational competition, I decided to learn more. At least I had to drop A simple network stream. In the future, the maximum flow cost will be reduced to a single click. In the past, the cost flow had always been a tall and unattainable image in my mind. But in the past two days, I found that the original

Project name calculation amount (10 million RMB) 1 Land Area (transfer area) 141.19 mu (94133 m²) 2. Area for Building (Main part) Multi-storey apartment 94560 m² accounts for 62.78% 40000 m² of small and high-rise apartments account for 26.56% 4000 m² of shops along the street accounted for 2.66% Semi-underground garage 17280 m² Subtotal 1, 167890 m² Three plot rate 1.6 4. Sales Multi-storey apartment 7800*94560 73756.8 Small high-rise apartment 8000*40000 32000 Street stores 12

Project 1 of the second week-Skating Rink cost, and 1 of the second week-Skating Rink There is a circular dry ice site, where cement is used in the site. The cost is M yuan per square meter, and the fence is surrounded by wood bars. The cost per meter is N yuan. Enter the roller rink radius, use a program to calculate the cos