junk mail filter update

Topic Links: http://acm.hdu.edu.cn/showproblem.php?pid=2473 Original question: Problem Description Recognizing junk mails is a tough task. The method used here consists of the steps:1) Extract The common characteristics from the incoming email.2) Use a filter matching the set of common characteristics extracted to determine whether the e-mail is a spam. We want

Problem descriptionrecognizing junk mails is a tough task. The method used here consists of the steps:1) Extract The common characteristics from the incoming email.2) Use a filter matching the set of common characteristics extracted to determine whether the e-mail is a spam.We want to extract the set of common characteristics from the N sample

Problem descriptionrecognizing junk mails is a tough task. The method used here consists of the steps:1) Extract The common characteristics from the incoming email.2) Use a filter matching the set of common characteristics extracted to determine whether the e-mail is a spam.We want to extract the set of common characteristics from the N sample

Hdu2473-junk-mail filter:http://acm.hdu.edu.cn/showproblem.php?pid=2473The main topic: M a B, representing A and b are the same class, S A, representing the original given the information of a is wrong, and now separate it into a category. Ask for the last number of messages in total.If it's just a classification, it's very straightforward to think about it and look it up. But if you use and check the set d

Click the Open link http://acm.hdu.edu.cn/showproblem.php?pid=2473Test instructions: Gives n operations, M a b indicates that A and B are the same and look up the set, S A is in and check the focus delete A, note that if 1 and 2 is a and check set, 2 and 3 is a and check set, then 1 and 3 is also a check set, even if the deletion of 2, we can still get 1 and 3 or a collection.Idea: Because and check set is a tree structure, unable to delete a point after the tree species will continue to maintai

, B, pt, ans, TM; - Chars[Ten]; - the voidInit () - { - for(inti =0; I ) - { +Fm[i] =i; -Fle[i] =i; + } Amemset (Vis,0,sizeof(Vis)); atPT =N; -Ans =0; - } - - intMfind (inta) - { in intFA =A; - to while(FA! = Fm[fa]) FA =FM[FA]; + while(A! =Fm[a]) - { the intMID =Fm[a]; *Fm[a] =FA; $A =mid;Panax Notoginseng } - returnFA; the } + A voidMmerge () the { + inthan=Mfind (Fm[fle[a]); - intFB =Mfind (Fm[fle[b]); $ if(FA! = FB) FM[FA] =FB; $

Test instructionsn messages need to be identified.Two kinds of operations:1. M X y:x and Y are the same message2.S x:x is misjudged (meaning that X is "kicked out" by the set it is subordinate to, and the relationship of all other messages remains the same)There are several kinds of mails at the end of the question.Ideas:The "merge" of the messages can be achieved by using the and check sets. But to "kick out" the individual x and then make sure that the other relationships are the same.To get a

HDU 2473 Junk-Mail Filter delete point and query set To delete a vertex and query a set, replace the previous vertex with a new vertex mark .. Y. #include #include #include #include #include #include #include #include #include #include using namespace s

Source: HDU 2473 junk-Mail Filter In step 2, operate m x, y, and merge X and Y into a set. S x, remove X from the set where it is located, and create itself into a set. Ideas: it is not easy to delete a vertex. If 0 1 2 can define an array ing in a set, the actual vertex corresponding to each vertex starts with a [0] = 0 A [1] = 1. [2] = 2 it means you are all

It was used yesterday. NET sent a message through SMTP sent a mail to their QQ mailbox, but after the successful delivery did not prompt the mailbox to receive new messages, and to the inbox there is no new mail.This makes me feel strange, so I think it is as spam filtering, so click on the garbage box to see, if so, QQ mailbox filter, as spam processing.So immediately on the internet to find a bit, finally

Aliyun e-mail spam Prevention method: 1, do not respond to the unknown origin of the junk mail. 2, do not put your email address on the Internet page everywhere registration. 3. Do not tell your email address to someone you do not trust. 4, do not subscribe to a number of unhealthy electronic magazines, to prevent the collection of

Junk-mail Filter Time limit:15000/8000 MS (java/others) Memory limit:32768/32768 K (java/others)Total submission (s): 6526 Accepted Submission (s): 2093 Problem Description Recognizing junk mails is a tough task. The method used here consists of the steps: 1) Extract The common characteristics from the incoming ema