Poj 2135 Farm Tour [maximum minimum cost of undirected graphs], poj2135
Title: poj 2135 Farm Tour
Question: Give an undirected graph, ask from to, and then return to a total of the shortest paths.
Analysis: if this question is not carefully read, it may be used as the shortest path. The shortest path is not necessarily the best. It is the shortest path of the two, but not necessarily the shortest path.
We can easily solve the problem by using the bi
Rose.Use Case using Rational Rose)
Right-click the use case View package in the browser box and a shortcut menu is displayed;
Select the new -- Use Case item;
Enter the name of the use case. (If an error occurs, use the RENAME command to change the name)
If the document window is invisible, select the view-documentation menu at the top of the screen;
Select the required use case in the browser box;
Place the cursor in the document box and enter the corresponding document.
, note that the solution is not n !. The reason is that the routes are not necessarily chained, but may be tree-like. In this way, the problem is transformed into the problem of finding the number of spanning trees for undirected connected graphs.
Reference code:
Program escape; var A, TA: array [1 .. 30, 1 .. 30] of extended; n, m, x, y, I: integer; ans: extended; Procedure Init; var I, j: integer; begin readln (n, m ); for I: = 1 to n + 1 do for J:
Share a good flash icon component: http://www.amcharts.com/
Pie donut
Line Area
Column Bar
Scatter bubble
Pie donut chartPie donut chart is very universal and fully configurable flash chart. Using it you can easily have good looking, animated pies or donuts on your web site.Download | examples
Data Structure --- using the c language to store and represent arrays (adjacent matrices) of graphs; --- using the c matrix
// Map array (Adjacent matrix) Storage representation # include
Copyright Disclaimer: This article is an original article by the blogger and cannot be reproduced without the permission of the blogger.
Diagrams consist of data elements and lines that connect data elements. In the figure, the data element is called the vertex (Vertex), and the line connecting the vertices is called the Edge (Edge). A graph is made up of vertex sets and edge sets. Generally recorded as form: g= (v,e), or g= (V (g), E (g)).1. Forward and no-show graphsNo map: Edges have no direction. Example (V1,V2), also can be written as (V2,V1).Directed graph: Side has direction, example 2. Adjacency PointThe two vertices of a
diagram).Used to define the physical architecture of the hardware in the system to describe the actual physical device and the connection between them.7, Sequence diagram (sequence diagram).Describes the order of interactions between objects, focusing on the chronological order of message delivery between objects, emphasizing the order in which messages are sent between objects, and also showing the interaction between objects.8, collaboration diagram.A collaboration diagram is an interaction
)650) this.width=650; "Src=" http://img.blog.csdn.net/20141115094911562?watermark/2/text/ Ahr0cdovl2jsb2cuy3nkbi5uzxqvzgnfnzi2/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/dissolve/70/gravity/center " Style= "Border:none;height:auto;"/>3 Query Execution PerformanceHere is the most bullish diagram, which illustrates the advantages of columnstore (and data compression) through the execution of a query:650) this.width=650; "Src=" http://img.blog.csdn.net/20141115094934319?watermark/2/text/ Ahr0cdov
-transforms.htmSummaryMatrix operation is a very basic mathematical knowledge, in the graphics of the application is still very extensive, but the University of the time often do not know what to use, and now use the time but forgot what the principle. This article only introduces some basic concepts of matrix operations, the detailed content can refer to the following reference. The next article simply introduces the actual use of matrix transformations.Resources:
HTTP://MSDN.MICROSOFT
effect);The effect is this (intercept the upper part)Such a large picture, must be cut. When the "first general, then local", that is, the large layout or module to determine down, and then to the specific module inside to subdivide. Like, I'm going to break this big picture into three parts.2. Save:Jpgorpng?Save the time remember not to choose "Save", but choose "store the format required for the Web", and then go to set the picture parameters and format of the window, you can set the picture
images/icons/;(2) It creates a class for each file name in its icon directory;(3) It adds a background image for all icons ;(4) It adds a background position for all icons .By default, Compass does not set the width and height of these elements. Compass can automatically generate the size of the icon , but we don't always need it3-1, single-sprites mixerThis icon will output the CSS for a single icon@import "Compass/utilities/sprites"; @import "Icons/*.png";. Add-button {@include icons-sprite (
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.