DOMjudge-devel

domjudge-devel@domjudge.org

194 discussions

Setup more JudgeHost servers
by Huynh Anh Dung 04 Oct '16

04 Oct '16

Hi Jaap, Please help to setup more Judgehosts, and do I need setting up exactly Domjudge server or only server with GNU and Java compile only?. Thanks in advance. Lec. Huỳnh Anh Dũng ACM/ICPC SUPERVISOR FPT UNIVERSITY. http://www.fpt.edu.vn -----Original Message----- From: Jaap Eldering [mailto:jaap@jaapeldering.nl] Sent: Thursday, September 22, 2016 9:13 AM To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org Subject: Re: Coonect data from ICPC On 21-09-16 23:05, Huynh Anh Dung wrote: > Hi Jaap, > I did delete all teams and associated usernames, except admin and justhost. > But it is still not reset teamID . Please check my message below: did you also reset the AUTO_INCREMENT counter? Jaap > -----Original Message----- > From: Jaap Eldering [mailto:jaap@jaapeldering.nl] > Sent: Thursday, September 22, 2016 8:50 AM > To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org > Subject: Re: Coonect data from ICPC > > Imported teams are automatically assigned a team ID using the MySQL auto_increment counter, and this ID is used for the associated username 'teamXXXX'. > > To reset that, you have to delete all teams (and the associated > usernames) and then reset the auto_increment counter, e.g. in phpmyadmin by running the SQL query: > > ALTER TABLE team AUTO_INCREMENT = 1 > > Jaap > > > On 21-09-16 21:36, Huynh Anh Dung wrote: >> Hi Jaap, >> Can you look at my picture, I captured from phpmyadmin. >> That can help you. >> thnaks >> >> Lec. Huỳnh Anh Dũng >> ACM/ICPC SUPERVISOR >> FPT UNIVERSITY. >> http://www.fpt.edu.vn >> >> -----Original Message----- >> From: Huynh Anh Dung [mailto:dungha@fpt.edu.vn] >> Sent: Thursday, September 22, 2016 7:26 AM >> To: 'Jaap Eldering' <jaap(a)jaapeldering.nl>; >> domjudge-devel(a)domjudge.org >> Cc: dungha(a)fpt.edu.vn >> Subject: RE: Coonect data from ICPC >> >> >> Hi jaap, >> I already fixed that problem, Please help me how can I reset team number back to team001 again. >> I use phpmyadmin. Please help how to reset teamID in mysql in phpmyadmin. >> thanks >> >> Lec. Huỳnh Anh Dũng >> ACM/ICPC SUPERVISOR >> FPT UNIVERSITY. >> http://www.fpt.edu.vn >> >> -----Original Message----- >> From: Jaap Eldering [mailto:jaap@jaapeldering.nl] >> Sent: Monday, September 19, 2016 10:16 AM >> To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org >> Subject: Re: Coonect data from ICPC >> >> On 18-09-16 23:20, Huynh Anh Dung wrote: >>> Hi Jaap, >>> I am manager for sub contest in Vietnam, now I want to connect from Domjudge 5.1.1 to data, please see my attachement. >>> Thanks >> >> In the ICPC CMS on the contest dashboard (as shown in your screenshot), go to export->webservices. Then create an access token with access to CCS export and standings upload. Also note the contest ID that is part of the URL. Enter these two in DOMjudge under 'import/export' in the jury/admin interface. Also make sure you have a team category "Participants" (present by default). Then you can download the teams from the CMS by a button press. >> >> Jaap >> >> >>> -----Original Message----- >>> From: Jaap Eldering [mailto:jaap@jaapeldering.nl] >>> Sent: Monday, September 19, 2016 9:15 AM >>> To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org >>> Subject: Re: Incorrect URL in DOMjudge Download Page >>> >>> On 18-09-16 22:59, Huynh Anh Dung wrote: >>>> Hi Jaap >>>> Yes please help how to connect icpc registered name with domjudge >>>> 5.1.1 Thanks >>> >>> First, if you post a new question, then please do not reply to a previous, unrelated post (I don't see how your question is related to the discussion below). >>> >>> I'm sorry, but your question is not very clear to me. Do you mean connecting to the ICPC content management system to download team data, etc? >>> >>> Please give more details of what you're trying to do and what you have already accomplished or tried. >>> >>> Jaap >>> >>> >>>> -----Original Message----- >>>> From: DOMjudge-devel [mailto:domjudge-devel-bounces@domjudge.org] >>>> On Behalf Of Jaap Eldering >>>> Sent: Sunday, July 3, 2016 7:06 PM >>>> To: domjudge-devel(a)domjudge.org >>>> Subject: Re: Incorrect URL in DOMjudge Download Page >>>> >>>> Thanks, fixed! - Jaap >>>> >>>> On 03-07-16 01:32, Malcolm Corney wrote: >>>>> Hi folks, >>>>> >>>>> >>>>> >>>>> On the DOMJudge – Download page at >>>>> https://www.domjudge.org/download you have an instruction for >>>>> adding your repository GPG key to APT but the URL in the >>>>> instruction is incorrect. Furthermore, the pipe command requires >>>>> sudo but the curl command does not. The command as currently displayed is: >>>>> >>>>> >>>>> >>>>> sudo curl -o - https://domjudge.org/repokey.asc | apt-key add - >>>>> >>>>> >>>>> >>>>> It should be: >>>>> >>>>> >>>>> >>>>> curl -o - https://www.domjudge.org/repokey.asc | sudo apt-key add >>>>> - >>>>> >>>>> >>>>> >>>>> Hope this helps someone. >>>>> >>>>> >>>>> >>>>> Malcolm Corney >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> DOMjudge-devel mailing list >>>>> DOMjudge-devel(a)domjudge.org >>>>> https://www.domjudge.org/mailman/listinfo/domjudge-devel >>>>> >>>> >>>> _______________________________________________ >>>> DOMjudge-devel mailing list >>>> DOMjudge-devel(a)domjudge.org >>>> https://www.domjudge.org/mailman/listinfo/domjudge-devel >>>> >>> >> >> >> > >

2 2

Coonect data from ICPC
by Huynh Anh Dung 01 Oct '16

01 Oct '16

Hi Jaap, I am manager for sub contest in Vietnam, now I want to connect from Domjudge 5.1.1 to data, please see my attachement. Thanks Lec. Huỳnh Anh Dũng ACM/ICPC SUPERVISOR FPT UNIVERSITY. http://www.fpt.edu.vn -----Original Message----- From: Jaap Eldering [mailto:jaap@jaapeldering.nl] Sent: Monday, September 19, 2016 9:15 AM To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org Subject: Re: Incorrect URL in DOMjudge Download Page On 18-09-16 22:59, Huynh Anh Dung wrote: > Hi Jaap > Yes please help how to connect icpc registered name with domjudge > 5.1.1 Thanks First, if you post a new question, then please do not reply to a previous, unrelated post (I don't see how your question is related to the discussion below). I'm sorry, but your question is not very clear to me. Do you mean connecting to the ICPC content management system to download team data, etc? Please give more details of what you're trying to do and what you have already accomplished or tried. Jaap > -----Original Message----- > From: DOMjudge-devel [mailto:domjudge-devel-bounces@domjudge.org] On > Behalf Of Jaap Eldering > Sent: Sunday, July 3, 2016 7:06 PM > To: domjudge-devel(a)domjudge.org > Subject: Re: Incorrect URL in DOMjudge Download Page > > Thanks, fixed! - Jaap > > On 03-07-16 01:32, Malcolm Corney wrote: >> Hi folks, >> >> >> >> On the DOMJudge – Download page at https://www.domjudge.org/download >> you have an instruction for adding your repository GPG key to APT but >> the URL in the instruction is incorrect. Furthermore, the pipe >> command requires sudo but the curl command does not. The command as >> currently displayed is: >> >> >> >> sudo curl -o - https://domjudge.org/repokey.asc | apt-key add - >> >> >> >> It should be: >> >> >> >> curl -o - https://www.domjudge.org/repokey.asc | sudo apt-key add - >> >> >> >> Hope this helps someone. >> >> >> >> Malcolm Corney >> >> >> >> >> >> >> >> _______________________________________________ >> DOMjudge-devel mailing list >> DOMjudge-devel(a)domjudge.org >> https://www.domjudge.org/mailman/listinfo/domjudge-devel >> > > _______________________________________________ > DOMjudge-devel mailing list > DOMjudge-devel(a)domjudge.org > https://www.domjudge.org/mailman/listinfo/domjudge-devel >

2 10

Help for JAVA
by Huynh Anh Dung 28 Sep '16

28 Sep '16

Hi Japp, Please help for java (JMV). I copy you 2 file to have a look. Thanks Lec. Huỳnh Anh Dũng ACM/ICPC SUPERVISOR FPT UNIVERSITY. http://www.fpt.edu.vn -----Original Message----- From: Jaap Eldering [mailto:jaap@jaapeldering.nl] Sent: Thursday, September 22, 2016 9:13 AM To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org Subject: Re: Coonect data from ICPC On 21-09-16 23:05, Huynh Anh Dung wrote: > Hi Jaap, > I did delete all teams and associated usernames, except admin and justhost. > But it is still not reset teamID . Please check my message below: did you also reset the AUTO_INCREMENT counter? Jaap > -----Original Message----- > From: Jaap Eldering [mailto:jaap@jaapeldering.nl] > Sent: Thursday, September 22, 2016 8:50 AM > To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org > Subject: Re: Coonect data from ICPC > > Imported teams are automatically assigned a team ID using the MySQL auto_increment counter, and this ID is used for the associated username 'teamXXXX'. > > To reset that, you have to delete all teams (and the associated > usernames) and then reset the auto_increment counter, e.g. in phpmyadmin by running the SQL query: > > ALTER TABLE team AUTO_INCREMENT = 1 > > Jaap > > > On 21-09-16 21:36, Huynh Anh Dung wrote: >> Hi Jaap, >> Can you look at my picture, I captured from phpmyadmin. >> That can help you. >> thnaks >> >> Lec. Huỳnh Anh Dũng >> ACM/ICPC SUPERVISOR >> FPT UNIVERSITY. >> http://www.fpt.edu.vn >> >> -----Original Message----- >> From: Huynh Anh Dung [mailto:dungha@fpt.edu.vn] >> Sent: Thursday, September 22, 2016 7:26 AM >> To: 'Jaap Eldering' <jaap(a)jaapeldering.nl>; >> domjudge-devel(a)domjudge.org >> Cc: dungha(a)fpt.edu.vn >> Subject: RE: Coonect data from ICPC >> >> >> Hi jaap, >> I already fixed that problem, Please help me how can I reset team number back to team001 again. >> I use phpmyadmin. Please help how to reset teamID in mysql in phpmyadmin. >> thanks >> >> Lec. Huỳnh Anh Dũng >> ACM/ICPC SUPERVISOR >> FPT UNIVERSITY. >> http://www.fpt.edu.vn >> >> -----Original Message----- >> From: Jaap Eldering [mailto:jaap@jaapeldering.nl] >> Sent: Monday, September 19, 2016 10:16 AM >> To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org >> Subject: Re: Coonect data from ICPC >> >> On 18-09-16 23:20, Huynh Anh Dung wrote: >>> Hi Jaap, >>> I am manager for sub contest in Vietnam, now I want to connect from Domjudge 5.1.1 to data, please see my attachement. >>> Thanks >> >> In the ICPC CMS on the contest dashboard (as shown in your screenshot), go to export->webservices. Then create an access token with access to CCS export and standings upload. Also note the contest ID that is part of the URL. Enter these two in DOMjudge under 'import/export' in the jury/admin interface. Also make sure you have a team category "Participants" (present by default). Then you can download the teams from the CMS by a button press. >> >> Jaap >> >> >>> -----Original Message----- >>> From: Jaap Eldering [mailto:jaap@jaapeldering.nl] >>> Sent: Monday, September 19, 2016 9:15 AM >>> To: Huynh Anh Dung <dungha(a)fpt.edu.vn>; domjudge-devel(a)domjudge.org >>> Subject: Re: Incorrect URL in DOMjudge Download Page >>> >>> On 18-09-16 22:59, Huynh Anh Dung wrote: >>>> Hi Jaap >>>> Yes please help how to connect icpc registered name with domjudge >>>> 5.1.1 Thanks >>> >>> First, if you post a new question, then please do not reply to a previous, unrelated post (I don't see how your question is related to the discussion below). >>> >>> I'm sorry, but your question is not very clear to me. Do you mean connecting to the ICPC content management system to download team data, etc? >>> >>> Please give more details of what you're trying to do and what you have already accomplished or tried. >>> >>> Jaap >>> >>> >>>> -----Original Message----- >>>> From: DOMjudge-devel [mailto:domjudge-devel-bounces@domjudge.org] >>>> On Behalf Of Jaap Eldering >>>> Sent: Sunday, July 3, 2016 7:06 PM >>>> To: domjudge-devel(a)domjudge.org >>>> Subject: Re: Incorrect URL in DOMjudge Download Page >>>> >>>> Thanks, fixed! - Jaap >>>> >>>> On 03-07-16 01:32, Malcolm Corney wrote: >>>>> Hi folks, >>>>> >>>>> >>>>> >>>>> On the DOMJudge – Download page at >>>>> https://www.domjudge.org/download you have an instruction for >>>>> adding your repository GPG key to APT but the URL in the >>>>> instruction is incorrect. Furthermore, the pipe command requires >>>>> sudo but the curl command does not. The command as currently displayed is: >>>>> >>>>> >>>>> >>>>> sudo curl -o - https://domjudge.org/repokey.asc | apt-key add - >>>>> >>>>> >>>>> >>>>> It should be: >>>>> >>>>> >>>>> >>>>> curl -o - https://www.domjudge.org/repokey.asc | sudo apt-key add >>>>> - >>>>> >>>>> >>>>> >>>>> Hope this helps someone. >>>>> >>>>> >>>>> >>>>> Malcolm Corney >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> DOMjudge-devel mailing list >>>>> DOMjudge-devel(a)domjudge.org >>>>> https://www.domjudge.org/mailman/listinfo/domjudge-devel >>>>> >>>> >>>> _______________________________________________ >>>> DOMjudge-devel mailing list >>>> DOMjudge-devel(a)domjudge.org >>>> https://www.domjudge.org/mailman/listinfo/domjudge-devel >>>> >>> >> >> >> > >

2 3

Incorrect URL in DOMjudge Download Page
by Malcolm Corney 23 Sep '16

23 Sep '16

Hi folks, On the DOMJudge - Download page at https://www.domjudge.org/download you have an instruction for adding your repository GPG key to APT but the URL in the instruction is incorrect. Furthermore, the pipe command requires sudo but the curl command does not. The command as currently displayed is: sudo curl -o - https://domjudge.org/repokey.asc | apt-key add - It should be: curl -o - https://www.domjudge.org/repokey.asc | sudo apt-key add - Hope this helps someone. Malcolm Corney

3 3

importing users/accounts/teams info
by Cheng, Howard 17 Sep '16

17 Sep '16

Hi, About a year ago I inquired about importing users, accounts, teams info from spreadsheet and I got a response to look at: https://clics.ecs.baylor.edu/index.php/Contest_Control_System#Appendix:_Fil… I was just wondering if anything has changed with the new version? Howard -- Howard Cheng e-mail: howard.cheng(a)uleth.ca Dept of Math and CS URL : http://www.cs.uleth.ca/~cheng/ University of Lethbridge Phone : (403) 329-2182 Alberta, Canada Fax : (403) 317-2882

2 1

hackathon
by Jaap Eldering 13 Sep '16

13 Sep '16

Hi all, First a happy new year to all! Thijs, Jan, and I talked about doing a DOMjudge hackathon day. We propose the weekend of 23/24 January. Who else is interested in joning and do you have a preference for Saturday 23rd or Sunday 24th? Jaap

8 19

DomJudge for Classroom Version
by Francisco Mora 01 Sep '16

01 Sep '16

Hi Everyone- One of our Instructors would like to have a DomJudge version that was more suitable for Education environment (Classroom branch version?). He read that such version was available some years ago but I could not find a link to download. Is this version still available and if it is what is the link to download? Thank you!! Francisco

2 2

checktestdata regex problem
by David Venhoek 26 Aug '16

26 Aug '16

Dear checktestdata maintainer(s), I tried installing checktestdata today on ubuntu 14.04.5, and noticed that the REGEX command is not properly functioning. Running make check reveals a failure in testcase 14, and manually running said testcase results in the following unfortunately rather unhelpfull message; terminate called after throwing an instance of 'std::regex_error' what(): regex_error Aborted (core dumped) Is this a known issue, or are there any obvious causes I could check? Kind regards, David Venheok

2 4

Re: Judging issue
by Jaap Eldering 25 Aug '16

25 Aug '16

Hi Aneesh, On 23-08-16 02:13, Aneesh R wrote: > Hi, > > On August 22nd at 17:00 IST to 18:00 IST we had conducted a practice > session with our local domjudge server , this is only testing the > potential of our domjudge server and used only one judgehost for this > session. Two sets of problems are included in this session, the > solutions are already shared with our students (23 users) >From here on I find it difficult to understand precisely what happened: > they are continually submitting the solutions when the > contest starts woefully the all submissions are going to the QUEUED and > the compilations are in PENDING , then we are announced to > all students to stop their submissions and they can logout by 17:30 IST > and we are waiting to finish all the pending submissions it take around > 18:10 IST Could you explain again step by step what _actually_ happened and what you _expected_ to happen? Preferably do so in short sentences. Best, Jaap > We don't know what's happening on the server . So we are attaching the > server logs with this mail kindly verify and suggest me some solutions > > Regards > Aneesh

3 4

rest api post submissions(Japp)
by Jesús Alberto Domínguez Alfonso 10 Aug '16

10 Aug '16

Hello , Thanks in advance. Please i need help. About your answwer:(Japp) "The REST API is an "application programming interface". The web method does not use it, but "talks" to the webserver directly. Also you don't need libcurl, but this is just one (easy) way of writing code to access the REST API" My problem is a bad request 400, I understand that the problem is that i send the parameters not correctly format and for this problem submmit post rest api doesn,t work. Please if someone know the correctly form to send the parameters, please wrote to me or send me an code example. Now i am going to put two methods make for a friend and me, this methods don´t work, we recieve a bad request 400, he and i are thinking the problems are some parameters that post doesn,t undesrtand,( http://localhost/domjudge/api/submissions POST) methods ------------------------------------------------------------ private void testConsumerPOST(String array, String nombreProblema, String languageId, String contest_id) { String servletURL = "http://localhost/domjudge/api/submissions"; URL servlet = null; try { TrustManager[] trustAllCerts = new TrustManager[]{ new X509TrustManager() { public java.security.cert.X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted(X509Certificate[] certs, String authType) { } public void checkServerTrusted(X509Certificate[] certs, String authType) { } } }; SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, new java.security.SecureRandom()); HttpsURLConnection.setDefaultSSLSocketFactory(sc. getSocketFactory()); // Create all-trusting host name verifier HostnameVerifier allHostsValid = new HostnameVerifier() { public boolean verify(String hostname, SSLSession session) { return true; } }; // Install the all-trusting host verifier HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid); servlet = new URL(servletURL); *HttpURLConnection servletConnection = (HttpURLConnection) servlet.openConnection();* // AUTENTICACION *String userpass = "admin:admin"; String basicAuth = "Basic " + new String(new com.sun.org.apache.xerces.internal.impl.dv.util.Base64().encode(userpass.getBytes())); servletConnection.setRequestProperty("Authorization", basicAuth); servletConnection.setRequestMethod("POST"); servletConnection.setDoOutput(true); servletConnection.setDoInput(true); OutputStreamWriter out = new OutputStreamWriter(servletConnection.getOutputStream()); ObjectMapper mapper = new ObjectMapper(); Map<String, Object> data = new HashMap<String, Object>();* *data.put("code[]", array); data.put("shortname", nombreProblema); data.put("langid", languageId); data.put("contest", contest_id);* *out.write(mapper.writeValueAsString(data)); *out.flush(); if (*servletConnection.getResponseCode() != HttpURLConnection.HTTP_CREATED*) { throw new RuntimeException("Failed : HTTP error code : " + servletConnection.getResponseCode()); } BufferedReader br = new BufferedReader(new InputStreamReader( (servletConnection.getInputStream()))); String output; System.out.println("Output from Server .... \n"); while ((output = br.readLine()) != null) { System.out.println(output); } out.close(); } catch (MalformedURLException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (ProtocolException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (KeyManagementException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (NoSuchAlgorithmException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } } Also another one with binary data post almost identical: private void testConsumerPOST_Binary(String array, String nombreProblema, String languageId, String contest_id) { String servletURL = "http://192.168.1.146/domjudge/api/submissions"; try { TrustManager[] trustAllCerts = new TrustManager[]{ new X509TrustManager() { public java.security.cert.X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted(X509Certificate[] certs, String authType) { } public void checkServerTrusted(X509Certificate[] certs, String authType) { } } }; SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, new java.security.SecureRandom()); HttpsURLConnection.setDefaultSSLSocketFactory(sc. getSocketFactory()); // Create all-trusting host name verifier HostnameVerifier allHostsValid = new HostnameVerifier() { public boolean verify(String hostname, SSLSession session) { return true; } }; // Install the all-trusting host verifier HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid); *HttpURLConnection httpcon = (HttpURLConnection) ((new URL(servletURL).openConnection())); httpcon.setDoOutput(true); httpcon.setRequestProperty("Content-Type", "application/json"); httpcon.setRequestProperty("Accept", "application/json"); httpcon.setRequestMethod("POST"); String userpass = "admin:admin"; String basicAuth = "Basic " + new String(new com.sun.org.apache.xerces.internal.impl.dv.util.Base64().encode(userpass.getBytes())); httpcon.setRequestProperty("Authorization", basicAuth); httpcon.connect(); ObjectMapper mapper = new ObjectMapper(); //Jackson Object mapper Map<String, Object> data = new HashMap<String, Object>(); data.put("code[]", array); data.put("shortname", nombreProblema); data.put("langid", languageId); data.put("contest", contest_id); byte[] outputBytes = mapper.writeValueAsString(data).getBytes("UTF-8"); OutputStream os = httpcon.getOutputStream(); os.write(outputBytes);* os.flush(); if (*httpcon.getResponseCode() != HttpURLConnection.HTTP_CREATED*) { throw new RuntimeException("Failed : HTTP error code : " + httpcon.getResponseCode()); } //Get the new submission_id BufferedReader br = new BufferedReader(new InputStreamReader( (httpcon.getInputStream()))); String output; System.out.println("Output from Server .... \n"); while ((output = br.readLine()) != null) { System.out.println(output); } os.close(); } catch (MalformedURLException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (ProtocolException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (IOException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (KeyManagementException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } catch (NoSuchAlgorithmException ex) { Logger.getLogger(PostSubmission.class.getName()).log(Level.SEVERE, null, ex); } } None of them are able to submit the files, just to be clear about the data format Im sending: *code[]* ---> "[{\"filename\":\"main.cpp\",\"content\":\" I2luY2x1ZGUgPGlvc3RyZWFtPg0KI2luY2x1ZGUgPHN0ZGlvLmg+ DQoNCnVzaW5nIG5hbWVzcGFjZSBzdGQ7DQoNCmludCBtYWluKCkNCnsNCiAg ICBTdHJpbmcgbm9tYnJlPSJwZWRybyI7DQoJaW50IHZhbD0xLHZhMj0xMCx0 b3RhbD0wOw0KCXRvdGFsPXZhbCt2YWwyOw0KCQ0KCQ0KICAgIHJldHVybiAwOw0KfQ0K\"}]" *shortname* ---> The problem ddbb shortname value previously recovered with the "problems GET method of the API REST" *langid*---> The language id value previously recovered with the "problems GET method of the API REST" (Ex: cpp) *contest* ---> We have tried both contestId and contest_short_name. Im not sure wich one should be sent. My last question is: Is the teamId necessary for the post? ------------------------------------------------------------- thanks in advance.

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