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5Output3 1 2) 4 5 English:Give you a directed loop graph that lets you label each node, and the node being pointed to is smaller than the node that points to it. The label order of the output dictionary order is minimal. #include Answer: First of all, the topic can be learned that the degree of 0 of the nodes are taken out, according to the dictionary order, and then the node out of all the edges removed. Repeat the process above. This is the process of topological sequencing.

"CF 724E" Goods Transportation (min cut +DP) Main topic:n factories, each factory has a production pi p_i and a maximum sales Si s_i. Small numbered factories can deliver goods to large numbered factories, with a maximum of C units per plant. The routing sequence is arbitrary. Ask for the final sales of all factories. Can think of the maximum flow. The source points with each factory an edge, the Flow pi p_i, each factory and meeting point an edge, th

"CF 731E" Funny Game (DP) Main topic:n number of words in a row, two people to play games.The rule of the game is that each time you can select more than 2 numbers from the leftmost merge, the score is the number of selected and the new number generated after the merge is the selected number.Until there's a number left, the game is over. Two people want to be with each other's final score difference is as large as possible, ask how much the difference

"CF 702E" analysis of pathes in functional Graph (multiplication) Main topic:N-point-N-side graphs with each point having only one successor. There must be a ring in the picture. Ask from each point, take the K-bar, total cost, as well as the distance of the minimum side of the right. Each point of each side can go multiple times, starting from each point to walk the K-step. K is very large, the first reaction is to find the ring, find all the rings,

"CF 732F" tourist reform (cut edge +dfs) Main topic:N-point M-bar without forward edge.Defines the number of points that Ri R_i can traverse to from point I. It is required to determine the direction for each edge so that min (ri) min (r_i) is the largest.Outputs the maximum min (ri) min (r_i) and the direction of each edge. Consider the existence of a scheme for double-connected sub-graphs so that each point can traverse to all points in the graph.Th

Transferred from: http://www.365mini.com/page/css-hack-ie-chrome-firefox-safari-opera.htmIn the current network era, a variety of web pages to show us a rich and colorful web world, and the browser is our view of the Network World window. In the past, browsers mainly have IE and Netscape two, and now, a variety of powerful browser endless. For example: The world-famous browser has chrome, FireFox, Safari, Opera, the common "domestic" browser has roami

Tags: username blank download BAE database connection format Introduction effect numberIt is of great significance to study the encryption and decryption of MySQL database in the course of network attack and defense. Imagine that once you have access to the site's permissions, if you can get the data stored in MySQL, through the decryption, you can access the database through the normal way, on the one hand, the direct operation of data in the database, On the other hand can be used to elevate p

CSS Hack, csshackAbstract: When we create a page, CSS hack has different understandings of CSS parsing in different browsers, such as Internet Explorer and Mozilla Firefox, which leads to different page effects, we cannot get the page effect we need. At this time, we need to write different CSS for different browsers so that they can be compatible with different browsers at the same time, so that we can get

(1) After importing the Abaddressbook library, and then adding the header file, you can use it.-Because this library method is basically the C language style, so the class is basically a CF beginning, such as Cfstringref and Cfarrayref, it and OC NSString and Nsarray similar, can be converted to each other, using __bridge to cast, such as (__ Bridge NSString *) XXX, you can convert the original cfstringref xxx to nsstring type, the advantage is that t

Reprinted from: http://www.cnblogs.com/icode-girl/p/5744409.htmlTopic Links: CF #365 (Div. 2) D-mishka and interesting sumTest instructions: gives the number of N and M queries, (1≤ N, m ≤1 000 000), asking for all occurrences of an even number of different values in each interval. Idea: It is easy to think that all the numbers in the interval will be different or get the number of odd number of values, and then different or within the interval of all

I now CF is 292 questions, still poor 1000-292=708 problem.The level of improvement does not exactly correlate with the number of questions, but the problem is that the training intensity is really too low now.I intend to reach 1000 questions within two months, that is, 1 days at least 10 questions, two months 60 days, 720/60=12/day, the average daily 12 to complete the task.In order to improve efficiency, I should not be in a card two hours above, wi

Preface: The first twoArticleWe learned how to add attributes, events, and descriptions of these attributes and events to the component. Today, let's test this component, if you forget the content of the first two articles, you can review them here: "Reference". Net CF component programming (1) -- after Basics "Reference". Net CF component programming (2) -- add events for components Of course, TCP

"CF 515D" Drazil and TilesThe idea of a topology if it satisfies the condition '. ' There must be a 1 point before the end of the traverse (there is only one '. ' On the left and right)When traversing to a 1-degree point u, enclose the point V with which he is connected with the corresponding parentheses, and V is also matched to zero at the same time the rest of the point in the V-in minus 1 is continuously traversed know to traverse all '. 'If it ca

Jzzhu have invented a kind of sequences, they meet the following property: You are givenxandy, please calculate Fn Modulo1000000007(9+?7).InputThe first line contains integersxandy (| X|,?| y|? ≤?109). The second line contains a single integerN(1?≤? ) N. ≤?2 109).OutputOutput a single integer representing fn modulo 1000000007 (9? +?7) .Sample Test (s) input2 33Output1Input0-12Output1000000006NoteIn the first sample, F2? =? F 1? +? F 3 ,3?=?2?+? F 3 , F3? =?1.In the second sample, F2? =??

Test instructions: In the hxw of the chessboard from the upper left to the lower right corner, can only go right or down, there are n points can not pass, there are a total number of options.Solution: DP. First, the point by the horizontal order (horizontal axis equal to the vertical axis, can also be reversed) dp[i] means the number of paths that do not go through the other illegal points to the first illegal point, there is the DP equation: dp[i] = C (point[i].x + point[i].y-2, point[i].x-1)-σ

June 26 CF SummaryToday I write half to the water group. And wasted a chance of flushing purple. The C question today is very simple. Unfortunately, only the water group, test instructions did not see clearly written ... In addition, AB problem of hand speed is too slow, B should be silly one eye problem but spent 20min,c problem test instructions did not see clearly go to the water group, high School of the arrangement of the composition of the probl

Copy CodeThe code is as follows: Session_Start ();Header ("Content-type:image/gif");Class Securitycode{Private $codes = ';function __construct (){$code = ' 0-1-2-3-4-5-6-7-8-9-a-b-c-d-e-f-g-h-i-j-k-l-m-n-o-p-q-r-s-t-u-v-w-x-y-z ';$codeArray = Explode ('-', $code);Shuffle ($codeArray);$this->codes = Implode (", Array_slice ($codeArray, 0,4));}Public Function createimg (){$_session[' check_pic ' = $this->codes;$img = Imagecreate (70,25);Imagecolorallocate ($img, 222,222,222);$testcolor 1 = imag

Week), WW (weeks), H (Hours), N (minutes), s (seconds) The FirstDayOfWeek parameter can have the following values: (The following are: Constant value description) Vbusesystem 0 uses the regional language Support (NLS) API settings. Vbsunday 1 Sunday (default) Vbmonday 2 weeks A Vbtuesday 3 Week II Vbwednesday 4 week Three Vbthursday 5 Thu Vbfriday 6 Friday Vbsaturday 7 Saturday The FirstWeekOfYear parameter can have the following values: (The following are: Constant value description) Vbusesyst

CF 460C Present [DP + idea], 460cdp Give you the height of n flowers. For m days, you can pour continuously w flowers every day. Once a day, each flower increases by 1 unit height. Find the maximum number of shorter flowers in m days. The maximum and minimum problems can be solved using two points. First, we can get the shortest height of all flowers, that is, the lower bound of the answer. Pouring m days for this flower is the upper bound of the a

First of all, it should be noted that there are already many articles on ListView data binding on the network, but most of them are for Winform, therefore, many new users may port code from Winform. net cf platform will feel very difficult, because many attributes or events are not supported, and recently the company has implemented a project, a lot of ListView needs to bind data, in addition, each ListView has a different column (field) binding. Alas