MikeMirzayanov's blog

By MikeMirzayanov, 6 years ago, translation, In English,

With the help of some experienced and respected members of the community (thanks!) there was formulated a rule that allows a third party code to be used under certain conditions. Please read carefully the text.

The following text will go as part of a renewed competition rules. The closest contest will be held already on the updated rules. Thus, there are about two days for further details, if something is unclear.

Solutions and test generators can only use source code completely written by you, with the following two exceptions:

  1. the code was written and published/distributed before the start of the round,
  2. the code is generated using tools that were written and published/distributed before the start of the round.

Any usage of third-party code should not violate the right holder’s license or copyright. Remember that published code is not always free to use! At the request of the right holder, any code that violates the license or copyright may be considered as violating the rules.

All the changes in the code from exceptions 1) and/or 2) must be made solely by you.

If there are any doubts about the time of publication, possible collaboration etc., a participant will have to prove his/her complete innocence by presenting compelling and satisfactory evidence.

Currently, the only reliable proof is the presence of code on the Internet and the presence of the used edition in the cache of well-known search engines.

For example, this rule accepts the use of the code from the website http://e-maxx.ru/ if the code was written and published/distributed before the start of the round. With the help of search engine caches, it can be easily shown that such code doesn't violate the rules. Similarly, it is permissible to use the code from a book/article that was published before the contest. On the other hand, using team reference code (for example, prepared for ACM-ICPC World Finals) is not allowed if there is no reliable and objective way to prove that the code was written before the contest.

This rule doesn't loosen the rules about prohibiting of communication, discussion, or any other form of communication between the contestants on any topics about the problems during the round.

 
 
 
 
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6 years ago, # |
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Sorry if this is already answered in the text above, I'm not quite sure.

In a number of contest websites (including TopCoder and here on Codeforces), after a contest finishes, the source code for each submission is viewable by any member. Is this considered "published/distributed" code? (e.g. does this rule mean that all contestants can use past submissions of every other contestant?)

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    6 years ago, # ^ |
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    Same question for code snippets published on codeforces.com/blog/

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    6 years ago, # ^ |
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    Generally speaking, no, authors do not have obligation to release their code into public domain, they only provide unexclusive license for TopCoder

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    11 months ago, # ^ |
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    Sorry but it was a coincidence .. I published my code on ideone.com that's why the problem has occured. Please give my ratings back

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3 years ago, # |
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Currently, the only reliable proof is the presence of code on the Internet and the presence of the used edition in the cache of well-known search engines.

Do I understand it right? Presence in cache of well-known search engines is mandatory for a proof to be considered reliable, isn't it?

What about the Wayback Machine (archive.org)?
Is it reliable enough?

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    2 years ago, # ^ |
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    It is not polite
    (and does not serve well to the community)
    to downvote a comment without any useful reply.

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      2 years ago, # ^ |
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      As we can see, anonymity of the voting system encourages coward and irresponsible behaviour of the voters.

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        2 years ago, # ^ |
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        What exactly is cowardly about downvoting you?

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          2 years ago, # ^ |
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          Downvoting with explanation is supportive and responsible
          (but yes, it is risky because your explanation comment can be downvoted itself).

          Downvoting with no useful explanation is just harming another person's contribution score without taking any responsibility or risks for that.

          That's why I call the latter behaviour coward and irresponsible.

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            2 years ago, # ^ |
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            Okay so this is just arguing for the sake of it, but...

            1. Contribution score doesn't matter.
            2. "Coward" means one is afraid to take a risk. While indeed downvoting doesn't take any risks, people don't downvote comments because they are afraid of taking risks. People downvote comments because they are wrong, offensive or just plain garbage.
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              2 years ago, # ^ |
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              Then why not to explain the reason of downvoting in a couple of words?

              Otherwise, how an author (of a downvoted message) is expected to learn what exactly is "wrong, offensive or [inappropriate]" about his/her comments and why it is considered wrong?

              (I think the practice of explained downvotes would significantly decrease the total number of "wrong, offensive or just plain garbage" comments because their authors had a chance to learn community rules faster: what is considered bad in this specific community, and why.)

              I understand that there are obvious cases (such as offensive comments) where explanation is not needed. But in this specific case it was not obvious (and it is still not obvious). Not for me, at least.

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              2 years ago, # ^ |
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              "Coward" means one is afraid to take a risk.

              Agree.

              And this actually does not cover ones who are not afraid to take the risks but just too lazy busy to explain themselves.
              On the other hand, I would not call such behaviour responsible (giving to the community is important, just taking from it is not good).

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              16 months ago, # ^ |
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              It's often the case that some very genuine comments get downvoted suprisingly. Even some contest announcements get so many downvotes. Do you think those announcements are wrong, offensive or just plain garbage?

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            21 month(s) ago, # ^ |
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            Stackoverflow tried to solve this problem by removing 1 point from your reputation when you downvote something.

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          2 years ago, # ^ |
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          (A bit more detailed answer. Back to the original issue.)

          A bad thing -- as I see it -- is that I was left alone with my downvoted comment and without important information.

          Specifically, I still have no idea why the original comment was downvoted.

          I do not have information, neither about what exactly was bad about that my comment, nor about who downvoted it (so that I could ask them personally).

          How should I learn from my mistakes in such situation if I do not understand what exactly my mistake was?

          In my opinion, sharing information which allows other members to learn is a crucial thing for a community.

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            16 months ago, # ^ |
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            I was also very confused by your comment downvotes, i undestand the way you fell, and really appreciatte the fact that you are not giving up and blaiming youself. People downvote maybe just to feel better and harm others, idk.I see many guys explaining their solution to problems that are not in editorial and require some advanced knowldge getting downvoted. That's the way things are, nothing to do about that. MAYBE I WILL GET DOWNVOTED TOO,tring to keep your side.

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      9 months ago, # ^ |
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      Hahahaaa XD

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2 years ago, # |
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Solution to problem Codeforces round 447 Div.2 question A. QAQ was already available on the internet, well before the contest.Please visit source — http://www.geeksforgeeks.org/find-number-times-string-occurs-given-string/ to confirm. Hence I don't think people should be penalised if their code matches with someone...as they both referred the same source....codeforces please see into it !

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    2 years ago, # ^ |
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    I Agree.I am using Ideone keeping it secret since 15 contests.It has not done yet.don't skip my contest.plzz consider my case...!! MikeMirzayanov

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2 years ago, # |
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delete2, coutinho, OutSpace, blindspot — this is 4 photo machines. You will can’t better, lol

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23 months ago, # |
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Hello Everyone, This morning I got a message from system that my submission http://codeforces.com/contest/911/submission/33725640 during the Educational Codeforces Round 35, has been found significantly similar to http://codeforces.com/contest/911/submission/33725051 and my account my get blocked due to this.

Both of the submissions were made my me for Question C, and i was thinking that the earlier one would be ignored as we have in any normal Round.

I request the community to help me out here as I don't know whom should I contact about this.

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23 months ago, # |
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:(

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    23 months ago, # ^ |
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    I also made such stupid mistake. Sure, it is so awkward.

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22 months ago, # |
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sir, coder_tuntun is my another account . and in today's contest #459 i submitted same solution for problem b , and i was not aware of the fact that we cannot submit same solution from two different accounts. this was unintentionally ...i feel really really sorry for such a big mistake from my side.i will take care of all the rules from next time onwards. please forgive me this time. sir please update my rating i solved both A and B.

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    22 months ago, # ^ |
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    Sir, in this case why you update rating of my coder_tuntun account and cancelled on the tintin account. If you want to cancel then please cancel it on coder_tuntun account. And sir please reply.thank you.

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22 months ago, # |
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Solution to problem Codeforces Round #459 Div.2 question A. Eleven was already available on the internet and it is well before the contest. Please visit source — https://www.geeksforgeeks.org/check-number-fibonacci-number/ to confirm.

I got a message from the System and it stated that My code matches with someone else's code . And my code got skipped.

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22 months ago, # |
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Hello Everyone, This morning I got a message from system that my submission for 918A khyati.agarwalss/34669006 during the Contest, has been found significantly similar to someone else's solution and a warning that my account may get blocked due to this. I wrote a very basic solution for that problem which was a short cut method, and it may possibly match with someone else's because no particular algorithm was applied in it and I used a saved syntax of jdoodle/c++. I request the community to help me out and make my solutions valid for the round 918 Div.2.

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22 months ago, # |
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zhongyin is my other account.I wasn't aware of the rules. So I submitted same code in both accounts in Codeforces Round #459 (Div. 2) contest. I am really sorry for my actions.

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22 months ago, # |
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zhongyin is my other account.I wasn't aware of the rules. So I submitted same code in both accounts in Codeforces Round #459 (Div. 2) contest. I am really sorry for my actions.

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22 months ago, # |
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This is my another id that was opened with another browser... unfortunately I submitted Codeforces Round #460 (Div. 2) B from #RAKIB_CSE_14#..... Then i submit from #Logical_Error# account.

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22 months ago, # |
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RAKIB_CSE_14 is my another id that was opened with another browser... unfortunately I submitted Codeforces Round #460 (Div. 2) B from RAKIB_CSE_14..... Then i submit from this account..

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22 months ago, # |
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Please clarify the message that is sent to users. I don't know where to "write a comment to post about the round with all the details". If this is the right place, please re-evaluate my solution for contest 919. The system claims neutron-byte/34741180 is similar to czommerfelds/34745389. The solution is very simple so it is no surprise it would be similar. Also the first result on Google for "c++ sum of digits" yields the same function http://www.sanfoundry.com/cpp-program-display-sum-of-digits/. Thank you. Best, Christian

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22 months ago, # |
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hello codeforces, i had a message after Educational Codeforces Round 37(Rated for Div. 2) .which says that Your solution 34846770 for the problem 920A significantly coincides with solutions oneplus3/34846646, codinghunter/34846770 .i want to say that both of the accounts(oneplus3 and codinghunter) were mine and i don't know the rules of submissions . But i promise that the soutions of both accounts is completely mine, and i won't make this mistake again.Don't block my accounts

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22 months ago, # |
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"Attention!

Your solution 35396581 for the problem 939A significantly coincides with solutions Mushfikur_Rahman/35392093, RezaSi/35396581. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties."

i dont know him and not published my code any where :/ ... that's simple problem and may be many user have same solution for A problem in contest :/

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22 months ago, # |
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I received a message from CodeForces after round# 464 that my solutions for A,B and D have been plagiarised. The solution to D was DSU and code was available on HackerEarth link for D's code. Problems A and B were trivial, I think because of similar template the solutions have been caught. The template which I use is really common. The codes for A and B were of <10 lines and hence the similarity. Kindly look into the matter.The variable names which I use are really common amongst the programmers hence the similarity.

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22 months ago, # |
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OK I do not know how this happened, and I was sure that I do not know this person at all. And when I entered his account, it turned out that he had been registered for a very short time, so how can I know him? I swear I did not take this solution from any Someone, whatever. Thank you

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    22 months ago, # ^ |
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    Please I want my rank ...because I do nothing

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22 months ago, # |
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Hi Mr.Mike! I'm Amir and today i passed the contest with my submissions but your system and your employees i don't know, said that i submit a copy code for my self. i have a question: If i have two different accounts and i want to participate in both of them, i can't do this?!?!

I'll thank you if answer my questions, rapidly! Thanks again!

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    22 months ago, # ^ |
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    Having more than one account is prohibited by the rules AFAIK.

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22 months ago, # |
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i just wanna to ask if 2 accounts belong to 1 person and he did the contest with 2 accounts at the same time. Is it violation?

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22 months ago, # |
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I'm sorry to have happened such a thing, and I won't do it again. I had a fluke in the game.

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22 months ago, # |
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I don't know how it happened I have used logic which I have seen in the internet

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21 month(s) ago, # |
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Today I got a message after Educational Codeforces Round 39 (Rated for Div. 2) that solution 36000027 for the problem 946A significantly coincides with solutions yashwant750/35999435, yash750/36000027. I want to tell that both of are my accounts and I didn't had any idea that 2 accounts are prohibited,so I am really sorry about it and I assure you that it wont happen in future and I won't be using the other ID from now on.

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21 month(s) ago, # |
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I dont know the rules of CF.And the other account is mine too.I submit my code on my account and i submit it with this account. Whatever,i am sorry for this thing happened.

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21 month(s) ago, # |
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Sorry about that...But both of these accounts are actually mine. Please consider my submission and give me my rank back. And this will never happen again in future.

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21 month(s) ago, # |
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In Codeforces Round #469 (Div. 2),when I was doing problem C,I communicate with another friend. He sent me his error code. I submitted it after correcting it. He also submitted it after correcting it.I'm sorry to have happened such a thing, and I won't do it again.

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21 month(s) ago, # |
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Attention!

Your solution 36167133 for the problem 948A significantly coincides with solutions avyaktg98/36161438, kogorou/36167133. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

This is a brute force solution and there was a similar problem "Palindromic Supersequence". Also if the members of the same team gets the same solution I recommend giving time to the involved participants to make changes in their code as the solutions are constructed while sitting in the same room. This type of instance is highly regretted and will be careful for the next time.

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    21 month(s) ago, # ^ |
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    The solutions are not similar, they are completely the same. No one can believe in such coincidences.

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      21 month(s) ago, # ^ |
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      Nice memes

      36178861 36178839

      same code + same compiler

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        21 month(s) ago, # ^ |
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        That's because of Undefined Behaviour. You should erase by iterator, not by value (because in multiset you will delete all such values and iterator iter can become invalid)

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21 month(s) ago, # |
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Why??

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21 month(s) ago, # |
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Why did my solution got skipped?

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20 months ago, # |
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Attention!

Your solution 37167311 for the problem 962E significantly coincides with solutions cuom0405/37165015, flibia/37167311, anno/37167796, pepi_angelov/37167900. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

I used the official solution written in the Goodbye 2017 Editorial: https://www.dropbox.com/sh/i9cxj44tvv5pqvn/AAB1_2Q0XKvKiOA1ukvcNIuUa/F?dl=0&preview=F.cpp

Solutions and test generators can only use source code completely written by you, with the following two exceptions:

the code was written and published/distributed before the start of the round, the code is generated using tools that were written and published/distributed before the start of the round.

I used a code that was written and published / distributed before the start of the round.

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20 months ago, # |
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Sorry, for being irresponsible. Yesterday in the "Educational Codeforces Round 42 (Rated for Div. 2)" I unintentionally used ideone as my system compiler wasn't working fine.I forgot to change the visiblity settings of ideone and someone intentionally misused my code. I would take care in future to not repeat this. my ideone code link during the contest is https://ideone.com/8vObjQ I saw the users profile with whom my code coincided(as said by you) ,his every solutions had been skipped which means he has a habit of copying. So i am innocent.

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20 months ago, # |
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Attention! Your solution 37167900 for the problem 962E significantly coincides with solutions cuom0405/37165015, flibia/37167311, anno/37167796, pepi_angelov/37167900. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found athttp://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

This is the problem I used as my source (and probably the others): http://codeforces.com/contest/908/problem/F 962E is just the same problem as 908F.

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20 months ago, # |
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FOR EDUCATIONAL ROUND: 42 ( The latest one)

I received a mail about violating the rules of the contest, by copying the code. But I have conclusive evidence that I had taken the code from a AC code of another problem, 908F. If u want I can link the solution here, from which I took the code. However, it was present BEFORE this contest began. So I am not sure how this can be a violation of the rules. It's the setters fault that the problem was exactly the same.

My solution : http://codeforces.com/contest/962/submission/37168611 The code I took it from: http://codeforces.com/contest/908/submission/33800403

I too had a AC code to this problem:908F (http://codeforces.com/contest/908/submission/33824171) But that got some error, so I decided to take another code.

Please nullify the claim that I collaborated with someone else during the contest. It is pure coincidence that they took the same code.

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19 months ago, # |
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great rules ...

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19 months ago, # |
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Sorry, I don't know the code can't be discussed, this is the result I discussed with him.

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19 months ago, # |
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hello codeforces, i had a message after Codeforces Round #481 (Div. 3) which says that your solution 38168041 for the problem 978B significantly coincides with solutions mithun_rahman/38167870, codefresher/38168041.i want to say that this is just a coincidence.I had evidence to prove it.But for some reason i lost it.But i want to say that this code is mine.I request you to check the code for the contest and please make it valid.I also thank you to know the rules.and please don't block my account...

→ Reply

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19 months ago, # |
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My solution 38295464 for the problem 984D significantly coincides with solutions yqdjl4/38292975, xiaowuga/38295464. I think the idea of this problem is relatively simple, the code is short, the possibility of the code similar is very great, I see the idea of the code is almost the same, this question is I think independently, I hope to restore my ranking,

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    19 months ago, # ^ |
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    This question is not difficult, It doesn't need any algorithm. This problem needs to be preprocessed.I do not have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition.But I stayed up all night playing this game and seriously ponder every question. I don't want to be skipped this contest.please!!!!!

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19 months ago, # |
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I did this question before this competition .I was having the solution file so i just copied my solution it. This may be the coincidence he got the same code from the website. i don't remember the name of educational website.

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19 months ago, # |
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hello.. I just got the message.. Attention!

Your solution 38659699 for the problem 981A significantly coincides with solutions i_wanna_work_at_google/38659167, tushar_2658/38659699. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

I dont know this guy.. maybe the solutions coincided.. requesting for a recheck.. and I didnt get any solutions from any source or other stuffs

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    19 months ago, # ^ |
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    Note that unintentional leakage is also a violation.

    Solutions are the same. By default some online IDE (like Ideone.com) publish codes. BTW I find it extremely weird or even dangerous. Be careful with them. Also prefer to use HTTPS in future and change passwords. Good luck.

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18 months ago, # |
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Attention!

Your solution 39380288 for the problem 992C significantly coincides with solutions stonejjun03/39379338, ahgus89/39380230, stonejjun/39380288. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

I made this code before starting the contest https://www.acmicpc.net/source/8705303 and lots of people could see and also I shared with lots of friends already. When I write code in upper site. So I think the the part that in the site of code is same... So could you help me about it????

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18 months ago, # |
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Attention!

Your solution 39628420 for the problem 996D significantly coincides with solutions sharpowl_06/39627670, sureshupadhyay900/39628420. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

i always prefer ideone for code ... and this is my code https://ideone.com/n0UjCL community please look at this and help me

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18 months ago, # |
  Vote: I like it -6 Vote: I do not like it

I got it from online reference so it might be familiar. I will make sure to improvise from now Thank you.,

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17 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I write this comment in regard to the mail i got from codeforces for problem 1005D. Me and my friend Smit were solving this problem together in the same place. So the solution is same. I'm sorry for this. it won't happen again.

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17 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry I unintentionally used ideone.com for writing code and someone must have used it to see my solution. This won't happen later.

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17 months ago, # |
  Vote: I like it -13 Vote: I do not like it

Hello, I recieved the following email from codeforces: Attention!

Your solution 40443772 for the problem 1006D significantly coincides with solutions vbbvaddd79506/40443608, Bogey24/40443772. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

Sorry for being irresponsible. In 'Codeforces Round #498 (Div. 3)', I used Ideone Online Compiler and forgot to change the default settings to private access. My ideone link during the contest is — https://ideone.com/BcjYgN. My code was used by someone else intentionally. I also saw the user's profile and observed that his submissions in past few contests have also been skipped. Maybe he had copied other user's solutions as well. Also I submitted my solution for the problem 1006D before this person. I am innocent and would take care in future not to use ideone during live contest.

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    »
    17 months ago, # ^ |
      Vote: I like it +14 Vote: I do not like it

    As you pasted, "unintentional leakage is also a violation", so you aren't innocent according to the rules. Pay more attention next time and move on.

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Attention!

Your solution 40945148 for the problem 1013A significantly coincides with solutions **/40942768, **/40945148. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

I created account cn18 just to see and access API of codeforces. But when the comp started I by mistakenly submitted by code using cn18 id instead of my id. On realizing it I shut down my id there was no way to remove the code from cn18 id. Sorry, it was my mistake. Moreover, you can see how easy the solution was. I didn't do it purposely.

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

why u r not applying this then

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16 months ago, # |
  Vote: I like it -6 Vote: I do not like it

if me and my friend participated at the same time together consulting and solvong the problem together and due to that our code matches and this is our first time participating any contest so we didn't actually know the rules well. what can we do now?

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Solution 41051114 for the problem 1015C significantly coincides with solutions saxapo/41050928, 177shivam/41051114 since both the solution is same because it is written by me only. Sir since website is not working smoothly so i have to submit my answer as fast as possible so i can do B problem, so i have submitted it by another account but as soon as my 177shivam profile opens after some time than I submitted my own solution in my own account. Sorry for rule violation if a rule is violated and I was not familiar about this rule and now onwards it will not happen again.[user:177shivam][user:177shivam]

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I'm sorry, but we are discussing the whole competition. There is no next time.

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16 months ago, # |
Rev. 4   Vote: I like it +5 Vote: I do not like it

Hi Codeforces, yesterday i participated on Codeforces Round #503 and I managed to solve 3 problems.

Unfortunately this morning when I woke up to check the results, i received a message from the system saying that this two submission 41488655 and 41489033 are the same.

I cannot deny that they look exactly alike. But when i did the third problem my IDE (CodeBlocks crushed) and i was forced to use ideone.com (link to ideone code, made 15 hours ago) to compile my code, and probably the other guy took it from there because I don't have any idea how else could he got my code. I didn't know that others can view your solution when using ideone. :( I will never use ideone again during a contest.

Now i don't have any idea how to prove myself as being the author of the problem. But i will try at least, maybe i can still keep my codeforces account. You can see for sure that the other guy copy pasted the problem. The first two problems do not match mine at all. And when you look at his submissions you can see a lot of them for problem C and the difference between last two 41488455 and 41488655 is just one minute and I don't see any way he could come with a totally different solution in just one minute. The submission are completely different.

And if i was using two accounts, do you think I would have wasted time coding two different solutions for the first two problems? Also you can see that the other guy, does this not for the first time, at the last Educational round he did the same. (image proving this).

I hope this can prove my point, have a nice day and thank you for reading, at least I shared my anger with you.

[Edit] Now it seems that i don't have access to any submissions. :(

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    16 months ago, # ^ |
      Vote: I like it +1 Vote: I do not like it

    As it is written in the message: unintentional leakage is also a violation. Please, be careful in the future.

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Hi, Yesteday in the contest "Educational Codeforces Round 49 (Rated for Div. 2)" I maneged to solve 3 questions out of 7 among which 1 was hacked. But suddenly today i got a message from your team that one of my solution match with some other user. Actually yesterday i used ideone with the privacy public by mistake. I think my solution might be leaked due to that problem. Sir/Madam, I am wrongly penalized as that was done unintentionally but i make you sure that mistake will not be done next time. Kindly look into this matter and remove my penalization for the same contest.

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    »
    16 months ago, # ^ |
      Vote: I like it +10 Vote: I do not like it

    As it is written in the message: unintentional leakage is also a violation. Please, be careful in the future.

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16 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

Hi today I have got this massage "Your solution 41863084 for the problem 1025B significantly coincides with solutions stormraider/41847161, travelers/41863084." We both have used same code from geeksforgeeks here. But I think it is not a problem but if it is I will be careful in future thank you. Also can you pls look into the situation and remove my penalty for the same contest thank you.

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16 months ago, # |
Rev. 5   Vote: I like it 0 Vote: I do not like it

Your solution 41835543 for the problem 1025A significantly coincides with solutions ak07/41833884, sourav54/41835543. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. I have not used ideone. I have taken some kind of help from some random sit e through Google search. I have no idea about this consequences. Plaese help. Thank you. Kindly look into this matter.

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I got the message "Your solution 41863523 for the problem 1025F significantly coincides with solutions fateice/41858912, WAAutoMaton/41863523, zhang9302002/41864602, BLeavesCoder/41864866."
We used the same public code .It was published on 6/29/2016 and google cached the page no later than 8/7/2018. So I thought that it's allowed by "the code was written and published/distributed before the start of the round".
Please help me,thanks.

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16 months ago, # |
Rev. 2   Vote: I like it -45 Vote: I do not like it

I have resieved the message that "Your solution 41864920 for the problem 1025F significantly coincides with solutions xzm2001/41862009, cubercsl/41864920." The problem is almost same to BZOJ4246 and we may use the same public solution and code. Please help me,thanks.Cache

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

"Your solution 42051437 for the problem 1029A significantly coincides with solutions DPO_WS/42050146, minhkhoi1026/42051437. Such a coincidence is a clear rules violation." I and my friend participated at the same time together and solving the problem together and due to that our code matches and we didn't actually know the rules well. I and my friend (http://codeforces.com/profile/DPO_WS) are very sorry about this, we won't do that anymore. Hope you can forgive us. Sorry if my English is bad.

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16 months ago, # |
Rev. 3   Vote: I like it -13 Vote: I do not like it

"Your solution 42030924 for the problem 1029B significantly coincides with solutions AzusaMiooo/42030143, Isshiki_yen/42030924. Such a coincidence is a clear rules violation." I and my friend AzusaMiooo solving the problem together and due to that our code matches and we didn't know the rules well. I am very sorry about this. Hope you can forgive me.

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15 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I found the problem in the compilation environment three minutes before the competition, so I used ideone. I was not used to ideone, compiled without turning off the searchable option, and was excluded this round. I am aware of my mistake. Sorry.  This may be insufficient evidence, but since most of my code so far has been written on the same template, I can show that the header, type definition, and variable declaration are exactly the same.

My source code of last round http://codeforces.com/contest/1025/submission/41833456 http://codeforces.com/contest/1023/submission/41750569

Copied source code http://codeforces.com/contest/1028/submission/42159376 http://codeforces.com/contest/1028/submission/42159445 http://codeforces.com/contest/1028/submission/42179991 http://codeforces.com/contest/1028/submission/42163628

I will pay great attention to the use of ideone in the future. May I ask you for a favor in this round?

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15 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I am sorry I submitted from my two IDs .My one Id is cluster19999@gmail.com and other ID is bhavyarustgi10@gmail.com .I only created a different Id for myself to use .I am sorry that I used both IDs during contest .I didnt cheat nor copied code of someone else.

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15 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Hi,

This is regarding Round 511 Div 2. My submission, abhisheksince97/43197368 has been flagged for coinciding with solutions vbbvaddd79506/43196786, priyasen54/43197486, fibo1/43201480, gennadykorotkevichaz/43202067, cpp19/43202087, milanmas/43202887.

I can prove that the solution is mine and the others have copied it. You can open all my recent past submissions, I have used the same template for .cpp file as I have done in this one. The rest have clearly copied.

Also, the solution that I have written is available on geeksforgeeks (https://www.geeksforgeeks.org/largest-subsequence-gcd-greater-1/). This could also be the reason for the match.

I was really foolish and naive to have tested my code on ideone. Please verify that I am the true author of this solution and please let this contest be rated for me as I put a lot of effort into it. I have never done such a mistake before and wont do it ever again.

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15 months ago, # |
  Vote: I like it -8 Vote: I do not like it

Hi, This is regarding solution 43335491 for the problem 1058D - Вася и треугольник , I have solved this question on my own ......I also matched my solution with 43330317 yes we have same variables declared due to which this misunderstanding took place ....but as you can see there is a lot difference in my templates and him....which I always use. This is just a coincindence and I am Innocent. Kindly consider my submission and do not block my account Thank you.

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15 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I noticed that my solution to the problem 1030B - Вася и кукурузное поле was similar to someone.I just took the idea from here https://www.geeksforgeeks.org/check-whether-given-point-lies-inside-rectangle-not/, didn't copy the code exactly . Please rejudge my solution ...

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14 months ago, # |
  Vote: I like it -6 Vote: I do not like it

I got a message recently, regarding a coincident solution. I assure you that I have not used ideone. It might have been a coincidence since, I checked the time of submission of the other party and it was significantly different. Moreover, the code contained only a while loop.

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14 months ago, # |
Rev. 7   Vote: I like it 0 Vote: I do not like it

Hello, I recieved the following Message from codeforces For My Solution 1033A : [ Attention! Your solution 43964475 for the problem 1033A significantly coincides with solutions damnstring/43954592, SadrulToaha/43964475. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. ]

-------> I want to clarify that i didn't share my code with anyone nor used idone and also didn't get help from anyone. i strongly believe this is a coincidence ! In this problem the solve idea is so easy and this problem can be solve in many ways such as using — many different if-else conditions .I also used if-else conditions to solve this problem .So My Solution Idea and code implementation can be match with anyone's implementation technique. I am Totally free from any Codeforces rules violation. Please Accept my solution an Give my ratings !

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14 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I have not any clue how our code matches

I have been using ideone and saved my solution there

I will keep in mind from next time

This time pls dont penalize me...

Its a request pls

From next time im not going to save my code

So it will be first and last time****

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14 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Attention!

Your solution 44150962 for the problem 1065C significantly coincides with solutions arjun_9426/44143324, spartan_go/44150962. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

I have received this message I dont know how code matches I have been using ideone May be this mishappen occurs due to that only So pls dont close my account or penalize me I will keep in mind from next time

So its a request This will be the first and last time i have been requesting Pls forgive this tym******** From next tym onwards i will not be going to save my code online on any ide

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14 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Yesterday, the two IDs, huangzhengdoc and hz2016 were my IDs, because CodeForces could not be found in some places in China, so I chose a domestic agent, but when I submitted last night, my two accounts have been switching because The proxy IP is the same, I can't choose, so both accounts are submitted, but after the game, I sent an email to the contest author's email address mirzayanovmr@gmail.com, asking him to help me solve this problem and delete one of them. The account game, but until I have not responded, but I can only do this to solve this problem.

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14 months ago, # |
Rev. 3   Vote: I like it -10 Vote: I do not like it

“Talk is cheap. Show me the code.” ― Linus Torvalds

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13 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry but my code is different with code of 18tin_nntan/45607672!!! I think my making is some same with this code may be because I and he have the same think!! Because this test is so short and the making is so easy to see!! So i thnks that is the reason why my code is same wiht 18tin_nntan/45607672. It is belong to maths!! And i use maths formula to resolve it!! I don't know him. I wish admin will review my code. Thanks you very much!!!

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13 months ago, # |
  Vote: I like it -13 Vote: I do not like it

I didn't cheat.but I got out of the contest. It's unfair.

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13 months ago, # |
  Vote: I like it 0 Vote: I do not like it

sir, tine_t is my another account . and in today's contest #522 i submitted same solution for problem a , and i was not aware of the fact that we cannot submit same solution from two different accounts. this was unintentionally ...i feel really really sorry for such a big mistake from my side.i will take care of all the rules from next time onwards. please forgive me this time. sir please update my rating i solved A.

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13 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

sir,I write code using variable kol,mx some other, which I used all time. I didn't copied anyones code.codeforces didn't to see others code.I used in my code map and ios based stdio.So why codeforces want to tell code are copied.yes I saw that code are equal but i am 15 years old, I didn't anything about code violation .......please ....... ..... .....

.....

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13 months ago, # |
Rev. 3   Vote: I like it -28 Vote: I do not like it

I got a message from system that my submission 46154222 during the Codeforces Round #524, has been found significantly similar to 46154175 and my submission get skipped.

Both of the submissions were made by me for Question C, and I have submit it to both my account.

I request the community to help me out here as I don't know whom should I contact about this.

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12 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Is it fine to take a piece of code from stack overflow or Github (e.g a sorting algorithm) ?

I'm new to this (obviously) : )

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12 months ago, # |
  Vote: I like it -8 Vote: I do not like it

Swadhin858 and Anexartitos both are my handle.. I don't know about the rule..

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12 months ago, # |
Rev. 2   Vote: I like it -9 Vote: I do not like it

.

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12 months ago, # |
Rev. 2   Vote: I like it -33 Vote: I do not like it

.

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12 months ago, # |
  Vote: I like it 0 Vote: I do not like it

actually i don't have terminal in my pc.so i have done my program in my friend's terminal and mailed her program instead of mine.i did not rechecked it and submitted the file.sorry for the irresponsibility and i apologize of not repeating it again.

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12 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Look me and cervovys we are a team thats why we did the same code (name of team cervovysTM )we didnt know how we entercepate as a team and i reseaved a message thats i did a same code as someone else i hope thats i get my marks back and thank you for understanding

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11 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry i've used ideone.com i'm not aware of the rules

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11 months ago, # |
  Vote: I like it 0 Vote: I do not like it

i was using ideone in the public mode during the contest while solving B problem of Hello 2019 and i have not copied the solution and the only evidence about coincident clashing of solutions is that i was using public mode of ideone.

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11 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I posted the same solution through my other account, it was completely unintentional. I was just trying out another approach for the problem https://codeforces.com/contest/1104/problem/B. It won't happen in the future.

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11 months ago, # |
Rev. 3   Vote: I like it 0 Vote: I do not like it

``I wansn’t aware of this rule

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11 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I wasn't aware of this rule and i am really sorry what i have done plz give back my rating.. I will never do that again.

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11 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

I didn't know about this rule....sorry it was my mistake.I just posted my code in Ideone pls give my rating back. It will never happen again

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11 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry, it was my fault...I lended my code to one of my friends. I assure you it won't happen again.

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    11 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    sorry friend.I am not intended to downvote it.By mistake,the curser pointed there.so,i am trying to remove it.But i cannot remove it and it is saying that you cannot vote twice. Sorryyyyy

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11 months ago, # |
  Vote: I like it -15 Vote: I do not like it

Hai sir First of all,sorry for that mistake. But there is a valid reason .We both are from the same college and we are friends.Actually ,yesterday my laptop was not working.So i just go to my friends room lalitha.There we both have solved the sum and just then ,as it is my friends laptop,she submitted first .There is also another problemin my college.Suddenly the internet stops working in sometimes.Keeping in mind that reason,i have logged out my friend account on her laptop and i have just copied the same code into my editor in my account and i submitted it as we have both solved the problem.And i can change the variables names and i can submit it,but i thought if the net stopped working ,then what i have to do? Moreover ,there are exams are going on.So we have to study for the exams .These are the reasons for that mistake. This is the first time and last time. Next time onwards ,i will not repeat this mistake. I will do on my own in my laptop.

Thank you

On Jan 24, 2019 12:25 PM, noreply@codeforces.com wrote: Attention!

Your solution 48840696 for the problem 1108A significantly coincides with solutions lalitha1399/48839525, 16b01a1252/48840696. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

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10 months ago, # |
  Vote: I like it 0 Vote: I do not like it

actually, he is my friend and we submitted a question with that solution and there were minor changes we both made in the final code and the code got same It won't again, we will write our code from scratch.

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10 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry, but it was coincidence. I don't know why it happens! Please give my ratings back

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10 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry! I got the code from my friend.

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10 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Dear Sir/Ma'am, My solution 49711461 for the problem 1114B was completely and solely coded by me. I've used ideone to run and test my code on some sample test cases. This solution has coincided with solution ivaan/49710829. I am completely innocent. This user handle is a total strange to me. Therefore, I request you to consider my request and look into the matter.

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10 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

[contest:65033] I don't know about the rules. And I own both of those id and submitted the same source code.It won't be happened later as I have known about it now. I tried to delete one of my account but find no option.Please have a look and try to provide a account deletion option and consider the situation.

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10 months ago, # |
Rev. 3   Vote: I like it -13 Vote: I do not like it

First , I need to say sorry to codeforces . That submission'id is my another id.The two id both are mine,so we submit the same submission.That time I don't mean that was violation,I just think it's to do experimence. I ware of the importance of it,please give me a chance,I won't do that again.

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10 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry but it was a coincidence .. I published my code on ideone.com that's why the problem has occured

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10 months ago, # |
Rev. 2   Vote: I like it -10 Vote: I do not like it

I received a message from codeforces system today regarding the similarity of my code with 2 other users. The reason for this may be that I was using ideone in public mode by mistake. Here are the links of my solution: https://ideone.com/s2sHpB https://ideone.com/Yax8pe https://ideone.com/9qbTAo

The only proof I can give you that I have not copied is that I coded the solution for problem for D1 and used the very same solution for D2 and got runtime error. The reason for that was the difference in array size I was using. In problem D1 I defined my array size=100 #define N 100 in my code. I submitted the very same code for problem D2 and got runtime error on a test case. I figured it out very soon due to large size constraints which the problem statement had and changed my array size by, #define N 200005

Had it been a copied code from somewhere I must have got accepted answer in first go or it would have taken me a significant amount of time to realize the error in the code.

The next proof I have is that you can see my coding style which is consistent across problems. I declare global variables with long long data type, use macros for defining array_size, #define N 200005

Request you to please give back my rating. It took me a lot of hard work and motivation to get a rank among top 1000 after such a long time.

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10 months ago, # |
  Vote: I like it -11 Vote: I do not like it

Sorry but it was a coincidence ..... I published my code on ideone.com that's why the problem has occured. Please give my ratings back

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    10 months ago, # ^ |
      Vote: I like it +2 Vote: I do not like it

    Note that unintentional leakage is also a violation.

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      10 months ago, # ^ |
        Vote: I like it -10 Vote: I do not like it

      my classmate wrote the same code which i wrote i am sorry it won't happen again

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      10 months ago, # ^ |
        Vote: I like it -9 Vote: I do not like it

      please give back my rating i will make sure this won't happen again. also if you want to make sure it was written by me you can see all the others i used the same declaration.you can view my pattern of coding it's the same way. i didn't copy. all the other time i declared the same way also the same pattern from declaration to everything

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10 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

sorry,i used to do the similar problem on luogu.org.The other one is my classate,maybe we have many things in common,but i am sure we didn't communicate during the contest.

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    10 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    we usually learn on the same text book,it is obviously that we would have something in common,but we never cheat during the contest.

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10 months ago, # |
  Vote: I like it 0 Vote: I do not like it

In round 541, the problem A had a trivial one line solution, which I had not shared with anyone. There are people bound to have similar code when the solution is only one line. There has been a false positive on plagiarism. I do not have any contact with the people that have the same answer, nor have I posted the solution anywhere else. Please remove the penalties that have been placed on me.

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10 months ago, # |
  Vote: I like it -11 Vote: I do not like it

Hello, I received this message today — "Your solution 50439498 for the problem 1130A significantly coincides with solutions lannister07/50438986, rajat_dhoot/50439498, fake12345/50446224." I did not copy anyone's code. Following are the evidences to support my stance — - You could look at any of my submission and coding style/pattern, they are same. - But the other two id's that you have provided seemed to be fake id's used for submitting and checking the solution. If you visit there other solution, you could easily make out that the entire coding style and template are different for every submission that they have made. All of their submissions are copied. So, I request the admin to ban their id. Yes, I did use ideone.com for testing my solution. I was unaware that my code could be hacked from there. Sorry for that. Though, I still wonder how they were able to hack it but anyways thanks for letting me know about such a scenario. I ensure that the mistake would not happen again. Since, I am relatively new to such contest, it would be encouraging if you could revoke penalties that have been imposed. Thanks :)

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9 months ago, # |
  Vote: I like it -12 Vote: I do not like it

In Round 61, Question F has a simple digital DP. I didn't share it with anyone, and the question is very similar to the 1260 on BZOJ. When the title is the original question, people will necessarily have similar code. Plagiarism has a false positive. I didn't contact anyone with the same answer, nor did I publish a solution anywhere else. Please remove the penalty for me.

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9 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

Attention!

Your solution 50854676 for the problem 1132B significantly coincides with solutions adipro/50848546, apg_/50854676. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. I don't know him and not published my code anywhere:/ ... that's a simple problem and may be many users have the same solution for A problem in the contest. Please give my rating back.

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9 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry for the problem that occurred. I was unaware of the fact that ideone.com has settings like Public or private. Sorry if I degraded the tempo of the contest plz forgive me this time, I 'll ensure that same never happens in the future.This is the first tym I came across such a problem. I truly ensure u that in upcoming future it wont happen. Sorry

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9 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

It is brought to my notice that my solution has been copied in Codeforces Round #546 (Div. 2) . It is not my fault as i kept my visibility of my code at ideone as public as hence my solution was copied.Please return my ratings as will take care of it from next time.Sorry for this mistake and this will not happen in future.

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    9 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Note that unintentional leakage is also a violation.

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    9 months ago, # ^ |
    Rev. 2   Vote: I like it 0 Vote: I do not like it

    Please forgive me this time.. It's my first time and will not take utmost care of it from next time .. Please return my rating

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9 months ago, # |
  Vote: I like it 0 Vote: I do not like it

sorry from my another account i submitted the same code.I didn't know the rule.I couldn't understand.

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9 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry, i took help from a friend as we were discussing the questions and logics but the similarity in code is purely coincidental.

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9 months ago, # |
  Vote: I like it +8 Vote: I do not like it

Hello, I received a message saying that my solution for Div2D of round #546 coincides with the code of other users. The code is clearly different and for a problem with such a short solution it is likely for the code to be similar. Please look into this.

Here is my submission which got flagged: https://codeforces.com/contest/1136/submission/51189268

Here are the other ones which were compared: https://codeforces.com/contest/1136/submission/51184411 https://codeforces.com/contest/1136/submission/51186289

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9 months ago, # |
  Vote: I like it -12 Vote: I do not like it

I am sorry i have two emails are Justen_Samir and Mo_Samir when i submit my code on Mo_Samir ,i submit the same code on justen_Samir also , my two emails have the same Pic.

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9 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

...

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9 months ago, # |
  Vote: I like it 0 Vote: I do not like it

give back my ratings i din't copied i ran my code in ideone.com that was my mistake and also you can the see the way i wrote the code is completely different than the others.you can view my past submissions you will find it. the way of writing code is different i also wrote my initals firefox at top of each code my initialisation for every code is the same refer my previous submission

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    9 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Note that unintentional leakage is also a violation.

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      9 months ago, # ^ |
        Vote: I like it -12 Vote: I do not like it

      but i didn't copied it. it was unintentional please give back my ratings further i won't use ideone.com for coding

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      9 months ago, # ^ |
        Vote: I like it -12 Vote: I do not like it

      sir please give back my ratings as it was unintentional it didn't copy also you can refer my way of coding you can find out out i didn't copy

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      9 months ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      what proof you require to prove my innosense

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9 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry.We shared our ideas in the contest.I promise i will not do it again.

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9 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Your solution 51512707 for the problem 1141B significantly coincides with solutions amity4932/51509273, amitm16a2/51512707. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. Sorry, i took help from a friend as we were discussing the questions and logics but the similarity in code is purely coincidental.

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8 months ago, # |
Rev. 4   Vote: I like it 0 Vote: I do not like it

This is not a coincidence. Sato07 is my brother's account I made and will be participating in the contest with it only. I logged out automatically after submission due to server problem I guess. I don't how I logged in the account of IBatJ. I did not know that I the account I selected was IBatJ and not Sato07. And after that it should that I did not submit the code so I resubmitted the same code.

Please don't ban me. And give my ratings back.

I will never do this again. Sorry for the two accounts and none of them is fake.

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8 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry, I don't know what is going on. Why is the code I write myself the same as others?

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8 months ago, # |
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hello. actually, I have two accounts in codeforces(one account is for my school homework(rmo) and one account is personal(izadidoostroham). last day I do not have enough time to write different code for problems, that is why I copied code. please give my rating back. thanks.

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8 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

.

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8 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry but it was a coincidence .. I use ideone.com for coding in all my competitions that's why the problem has occured. Please consider my situation and increase my rating.This won't happen again.

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8 months ago, # |
  Vote: I like it -8 Vote: I do not like it

Sorry, this A question prevents me from thinking that I think it's a good code. In fact, it's awful. The game is nearing the end, my friend shared his code, I don't believe in such a long code, so I submitted the code, I forgot that the game is not over, even if there is one minute left. I forgot the spirit of the game and violated the rules of the game. The talks said that I might be titled. This is the last thing I want. I want to continue to participate in the competition. I accept the cancelled score. I love Codeforces.

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8 months ago, # |
Rev. 2   Vote: I like it -11 Vote: I do not like it

sorry for that

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8 months ago, # |
  Vote: I like it -12 Vote: I do not like it

i shared my solution with my friends but it was my solution and they submit it before me sorry for that and i will not do this again and please add my points

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8 months ago, # |
Rev. 2   Vote: I like it -12 Vote: I do not like it

.

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8 months ago, # |
Rev. 7   Vote: I like it 0 Vote: I do not like it

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8 months ago, # |
  Vote: I like it 0 Vote: I do not like it

hello codeforces, i had a message after Codeforces Round #552 (Div. 3) .which says that Your solution 52860738 for the problem 1154C significantly coincides with solutions 2018030402024/52858419, 2018030402055/52860738.i want to say that both of the accounts were mine. i want to try my code on another account and i don't know the rules of submissions . But i promise that i won't make this mistake again.Don't block my accounts.

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8 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

Sorry sir, I didn't know how this happen and even i donot know what is ideon. Sir I even new to these platform and first time participated in contest. Kindly help me and please give rate for this contest. Donot block me. I assure it won't happen again.

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8 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Attention! Your solution 52863447 for the problem 1154B significantly coincides with solutions Eltoney/52862590, seif42/52863447. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties.

/// about this message i was only solve with my friend we are team in colleague and we was training on team work and i wish you accept my apology

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7 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I will be more careful for Cody in the next few times. thanks for your support

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7 months ago, # |
  Vote: I like it 0 Vote: I do not like it

The messsage i received : Attention!

Your solution 53512345 for the problem 1150B significantly coincides with solutions k180231/53512345, Muhammad4hmed/53512578. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

Actually me and Muhammad4hmed was solving problems together and he used my built logic actually we both are new and have no idea about the rules of codeforces. Kindly forgive us this time, we will be careful from next time.

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    7 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Those submissions are character-to-character identical. Doesn't sound like "Actually me and Muhammad4hmed was solving problems together and he used my built logic".

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      7 months ago, # ^ |
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      bro we were sitting together and we solving in team

      i don't know whether is this allowed or not

      but it was the case.

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7 months ago, # |
  Vote: I like it 0 Vote: I do not like it

message i got from system Attention!

Your solution 53512578 for the problem 1150B significantly coincides with solutions k180231/53512345, Muhammad4hmed/53512578. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

actually sir im pretty new on codeforces and it was my first competiton and i did not know about rules of CF i just got idea from k180231's logic to solve the problem I did not knew that it is not allowed i will be careful in future.

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7 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I will be more careful for Cody in the next few times. thanks for your support.

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7 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

sorry its a coincidence because we are friend and we do an exercice in the same contexte with the probleme in the contest thats why there are a coincidence . i repete my excuse for this probleme!!

https://www.hackerearth.com/fr/problem/algorithm/stone-game-a39dbbe7/

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7 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Hello Codeforces Community, I received a message today regarding matching of my code with some other users. I think I have forgotten to change the privacy to private on ideone while writing solution, so it can be possible the other users got my code from ideone. Now whatever is your decision is comfortable for me I will keep in mind that from next contest,

Thank you.

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7 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Sorry but it was a coincidence.I will not publish my code next time

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7 months ago, # |
  Vote: I like it 0 Vote: I do not like it

hello today I got 2 message from system stated below. Attention!

Your solution 54290305 for the problem 1166A significantly coincides with solutions babuji/54290214, sourabh54singh/54290305, hehe172719/54290376. Attention!

Your solution 54300094 for the problem 1166B significantly coincides with solutions Krotonic/54299987, sourabh54singh/54300094. 

You can match the pattern of all my past submissions with these submissions, they are same.

Both these submissions were too late after my submissions and I was using ideone compiler whose visibility was set to public which I was not aware of . I have screenshots of ideone pages as proof. Please make the contest rated for me . I will not repeat the mistake again.

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6 months ago, # |
  Vote: I like it 0 Vote: I do not like it

I got this message from codeforces :

Attention!

Your solution 55244223 for the problem 1173A significantly coincides with solutions akashsingh/55244223, dionerosalia/55244910. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation.

This was an unintentional leakage which happened because I was using an online editor Ideone and its visibility was set to public. I hope you see my point and yes I will be using the private visibility from now on. I am sorry for my folly.

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6 months ago, # |
  Vote: I like it -32 Vote: I do not like it

lick_lick_lick_myballs is my other account. I wasn't aware of this rule. Henceforth, I submitted the same code in both accounts parallelly in Codeforces Round #565 (Div. 3) contest. I beg your pardon for my immature actions. I sincerely vow to never repeat such deeds again. I'll be highly thankful if I could get my ratings for the above contest.

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6 months ago, # |
Rev. 3   Vote: I like it -23 Vote: I do not like it

Attention!

Your solution 55438593 for the problem 1182A significantly coincides with solutions nashugame/55438593, shadyman123/55445818. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I have got this message from the system of codeforces I would like to clear that shadyman123 is a friend of mine at my college. Thus it was during one of those post competition discussions that I showed him my code and he too began using the same macros. As for the logic of the code I don't think that he could have done it any differently he could have differed his solution with mine in terms of only power function. As an evidence you can check that I have been using those macros previously than him. I hereby request you to please do not punish us with penalties.

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6 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

Your solution 55459961 for the problem 1182C significantly coincides with solutions Athena_1111/55457716, Anti-Mirzayanov/55458879, gandhipaaji/55458903, shreyanshgeek_unofficial/55458966, Harsh_jiit/55459119, turtle407/55459150, kaptaan/55459742, firefox/55459961, shivansh100/55460142, Izanagi/55460447.

you can view my other submissions and can found out the macros i use its the same .the way i code is the same.the logic might have coincided doesn't mean that i have cheated. please give back my ratings. And also you can check my other submission you will found out that i am not guilty.


~~~~~ Your code here...

~~~~~

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    6 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Chal Chutiya

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    6 months ago, # ^ |
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    How can you be such a liar? You copied my code literally. It's better to apologize rather than begging for something you don't deserve.

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6 months ago, # |
  Vote: I like it -7 Vote: I do not like it

Attention!

Your solution 55457716 for the problem 1182C significantly coincides with solutions Athena_1111/55457716, Anti-Mirzayanov/55458879, gandhipaaji/55458903, shreyanshgeek_unofficial/55458966, Harsh_jiit/55459119, turtle407/55459150, kaptaan/55459742, firefox/55459961, shivansh100/55460142, Izanagi/55460447. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I just got this message. I want to clarify that I was using the online compiler ideone.com without knowing that apparently my code was public. I have not copied the code of anyone!! You can check the timing. I have written every line of this code. I haven’t even used functions form any websites. It really pains to receive this message in the first contest where I do well. What a luck!!!!!!! :/

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6 months ago, # |
Rev. 4   Vote: I like it -37 Vote: I do not like it

The comment is hidden because of too negative feedback, click here to view it

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6 months ago, # |
  Vote: I like it -28 Vote: I do not like it

Good evening.

I joined the last Codeforces Round(#566,div2) , but it turned out that "my solution 55459352 for the problem 1182E significantly coincides with solutions AH_ljq/55459352, wh_ZH/55461495".

wh_ZH is one of my classmates, you can see that we are in the same organization "ASDFZ". Before the Round finshed, I shared my methed with him. He got it, and finally he solved the problem as well.

I promise that I thought and solved this problem on my own. One reason is that my solution is ealier than his.

My submissions were skipped, and my rating drops a lot. Wish you can change the judgement of this round to me.

Best wishes.

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    5 months ago, # ^ |
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    I'm sorry for my fault at that round, and I won't do like that any more. Tanks for giving me a chance to correct it.

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6 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

..

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6 months ago, # |
Rev. 2   Vote: I like it -19 Vote: I do not like it

..

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6 months ago, # |
Rev. 3   Vote: I like it -8 Vote: I do not like it

ideone shouldn't be used during participating in contests as your solutions may be shared with other participants so you may use ideone in private mode(not secret) or the best solution is to use an offline IDE(eg:- DevC++,CodeBlocks) or Codeforces IDE in custom innovation tab or use Geeks for geeks IDE

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6 months ago, # |
  Vote: I like it -8 Vote: I do not like it

Attention!

Your solution 55773344 for the problem 1185A significantly coincides with solutions RRR_777/55773344, habi.amg.2015_/55774456. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

///sorry for that, to be honest I shared my code with my friends, this won't happen in the future.

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6 months ago, # |
  Vote: I like it -8 Vote: I do not like it

I am user Ankit211999 and my ratings for the contest #568 Div 2 had been deducted due to the coincidence of submission Ankit211999/55756528 with kotlin_hero987/55756305. Actually, I used ideone and I didn't knew that its use was prohibited. And the submission which matched was of Problem 118A which is a basic problem and I solved two more problems after that if the submissions would have matched it would be of all the three problems. It might be the case that the style of writing code of both the coders for that basic problem might be same. I worked hard for solving those problems please return my ratings for that contest. You can check my other submissions too they also have the same style.

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6 months ago, # |
  Vote: I like it -9 Vote: I do not like it

Attention!

Your solution 55893152 for the problem 1180B significantly coincides with solutions Yaman211/55892304, KMPK/55893152. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

my submit isn't like yaman211 submit and i am who write this code and there are alot of similar code of my code and his code plus you can check the format of this solution with my other solutions. It’s the same.
i hope return my rate back..

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    6 months ago, # ^ |
      Vote: I like it -9 Vote: I do not like it

    And why you are remove my solution and leave me in the contest thats hurt my rate alot At least return the previous rate for me

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    6 months ago, # ^ |
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    I managed to reach this rate after 2 months of training Please help me

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6 months ago, # |
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In the last div 2 contest, i had another browser opened and logged in condeforces with my another CF account which i rarely use to practice. At first I accidentally submitted a sloution from that account and then again submitted it from my original account. I have proof that both of them is my account. so please give my ratings back

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    6 months ago, # ^ |
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    and also, if you check my previous solutions from both of these accounts you will clearly notice that the coding style is same using the same defines and etc. I just wasn't aware that it was a violation of rule to submit code from both accounts. If I had knew this then I wouldn't submit the other problem from that account too.

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    5 months ago, # ^ |
      Vote: I like it -11 Vote: I do not like it

    AFAIK, having more than 1 account is prohibited

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6 months ago, # |
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I'm sorry it was a coincidence.I was not aware and published my code on ideone.com. I respect the community and it would not be repeated next time.

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5 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Attention!

Your solution 56319919 for the problem 1187A significantly coincides with solutions dsheikh/56318585, Malik99/56319919. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

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5 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Attention!

Your solution 56319919 for the problem 1187A significantly coincides with solutions dsheikh/56318585, Malik99/56319919. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

What is this?? It was not a case of plagiarism as such a small snippet of code is likely to be same, it's just a mere coincidence and nothing else. Please undo this action.

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    5 months ago, # ^ |
      Vote: I like it -8 Vote: I do not like it

    Man, your code and code of dsheikh are actually the same. Just dont cheat next time

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      5 months ago, # ^ |
        Vote: I like it -8 Vote: I do not like it

      Man, it's just coincidence and nothing else.

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        5 months ago, # ^ |
          Vote: I like it -8 Vote: I do not like it

        The solutions are exactly the same, it cant be a coincidence

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        5 months ago, # ^ |
        Rev. 2   Vote: I like it -8 Vote: I do not like it

        same everything except you change t to z

        just don't cheat to get rating, you will regret it

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5 months ago, # |
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Attention!

Your solution 56338893 for the problem 1187E significantly coincides with solutions zsben/56338040, wongdark2019/56338893. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

//we didn't know each other and I think we are innocent.Maybe the problem 1187E have some common with the problem 1092F,and both of we made reference of this: [](https://www.cnblogs.com/ldxcaicai/p/10367815.html)

//Sorry for that...

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5 months ago, # |
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Attention!

Your solution 56328583 for the problem 1187B significantly coincides with solutions portgas_d_sam/56328583, Kurapika/56328908. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I am really sorry for using public settings on ideone for solving the problems. I don't know this person in any way. I will be careful from here on, please no penalties :(

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this second time happen with me I am not use any one code, I am trying to solve problems with my self and with codeblocks and test my code with test cases on https://ideone.com/ to save time but I do not know how to some one use my code or getting it.

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Attention! Your solution 56572241 for the problem 1189B significantly coincides with solutions shahTheshah/56571732, cycle/56572241. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

Attention! Your solution 56572160 for the problem 1189A significantly coincides with solutions shahTheshah/56565707, cycle/56572160. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

Sorry ! I didn't know the rules about submitting same code from two different accounts.Both accounts ("shaTheshah" and "cycle") are mine. I won't repeat this in future. Thanks

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5 months ago, # |
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Hello Everyone, I got a message from system that my solution 56579375 for the problem 1189B, has been found significantly similar to someone else's solution and a warning that my account may get blocked due to this. I wrote a very basic solution for that problem which was a short cut method, and it may possibly match with someone else's because no particular algorithm was applied in it and I used basic c++ syntax. I request the community to help me out and make my solutions valid for the round 1189B.

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Why am i getting warning that i will be banned because my solution coincides with someone else? I just know the concept and I wrote the solution I even dont know the people who coincides?!

Also , I dont even know them and they may live in different countries?!

Please check your system

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    Attention!

    Your solution 56574246 for the problem 1189D1 significantly coincides with solutions Engineer124/56574246, HowDidItComeToThis/56574736, loki_i_will_kill_you/56575324. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

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      Maybe I made my IDEONE public. I wont do that again Sorry again

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The code I accepted has been stealen by other person,I don't know how he did it.I don't know who he is either.

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Sorry about doing that

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It was a coincidence. I have not shared my solution with anyone. This may be due to some problem with ideone.

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sir i used ideone and the user copied my submission from ideone . i did it by mistake sorry for the mistake the person was unrated and had no experience he misused ideone :( .The person name is Anonymous_CF_Tester/57406704 i didnt even knew him punish him he submitted later then me thats also the proof for this take strict action against him

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    Hey the same thing happened to me :( And how can i proof ? :(

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      Nothing bro wait for another contest and perform well in that contest will the deduct the whole rating to zero ??

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Attention!

Your solution 57411020 for the problem 1178B significantly coincides with solutions abhaypatro/57410138, an09mous/57411020. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I got this message after the Global Round 4. I used IDEONE and I think someone stole my B problem. I tried to first submit in Java and got WA and then converted it into c++ and got AC. I didn't know that using IDEONE would cost me this much. Won't use IDEONE again. And of course sorry for this.

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5 months ago, # |
Rev. 5   Vote: I like it 0 Vote: I do not like it

Attention!

Your solution 48342424 for the problem 1100A significantly coincides with solutions ad2799/48342236, PVsNPSolver/48342424. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. hey I dont know who this ad2799 is.How can such a significant collsion happen is unknown to me to the best of my knowledge.Please help!

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5 months ago, # |
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Why my rating for During the system test one message appeared that my solution was copied.All of my solution was skipped even though my submission time was much earlier than the 2nd account while all the solutions of plagiarized account was skipped. Please look into this matter MikeMirzayanov.

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5 months ago, # |
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I use my friends sublime snippet to generate code and as a result some specific codes of us are same is it the reason behind? I am learning programming form him.

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5 months ago, # |
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Attention!

Your solution 57532215 for the problem 1197B significantly coincides with solutions romaakter/57532101, hossain95/57532215. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked. ]]

I extremely sorry for my mistake.About 4 weeks ago I've created another account on codeforces.Handle name "romaakter". When the contest was running (Educational Codeforces Round 69) unintentionally I submitted a solution on account that's name "romaakter". After the submission I saw that it was not my original account there I always participate on contests. So I submitted again the solution from my original account that's name is "hossain95".That was my big mistake.I promise that I will never do it again. Codeforces is my favourite online judge. Codeforces is my part of life. I see my career through this ID. Please forgive me.. If anything happens again in future which violates the rules, please inform me before banning my ID.

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...

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Sorry.We shared our ideas in the contest.I promise i will not do it again. Thank you for alerting me.I will remember this lesson.

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Sorry but it was a coincidence .. I submitted my code from another account as it was open from my another id that's why the problem has occured. Please give my ratings back

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5 months ago, # |
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Attention! __ Your solution 57685386 for the problem 1196D2 significantly coincides with solutions mad_o/57685386, master_chief/57690466. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I received this message with regard to the contest Codeforces Round #575 (Div. 3) . In my defense, I tried my code at ideone for assessing the time boundations. I had absolutely no idea about it's public visibility and these rules of codeforces. I apologise for any of the rule violations I may have unintentionally caused. I assure you that such mistakes won't happen again. I apologise again for the inconveniences caused.

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Its just a coincedence sir.The logic used by both codes is same and the names of variables are also common in nature.I always use the same variables names in most of my codes.I don't know how it happened.I will try to use different names in future. Sorry sir but its a pure coincedence!

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Attention!

Your solution 57681088 for the problem 1196D1 significantly coincides with solutions surung9898/57681088, thunder_light/57690147, Minimixer/57690460. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

Sorry, I didn't knew that Ideone.com can view other's code. When I was doing the div3 contest, in problem D2, I wrote the DP code but It was not sure that code I written is performed rightly. So I just had ran the D1 code(got the AC) with Ideone.com and just compared the output with my D2 code. It was just all. Sorry, I Apologize for my unintended mistake.

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ideone shouldn't be used during participating in contests as your solutions may be shared with other participants so you may use ideone in private mode(not secret) or the best solution is to use an offline IDE(eg:- DevC++,CodeBlocks) or Codeforces IDE in custom innovation tab or use Geeks for geeks IDE

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4 months ago, # |
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Sorry but it was a coincidence. I published my code on ideone.com that's why the problem has occured. Please give my ratings back.

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    That’s not what a coincidence is.

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      I usually code on ideone using private mode but this time around I forgot to switch it to private mode. That is the reason someone may have copied my code. Anyways, my submission would surely have been submitted before the solution submitted by the offender.

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I am really very sorry. I was just coding on the general coding platform of our college, as my laptop’s battery went down. Hence, the code became public and this copy, pasting of code happened. I assure the Codeforces team, that this type of mistake from my end won’t happen anytime again. I am really very very sorry. Please, don’t block my account.

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hey there , i had given the codeforces round #577 div2 , and i have solved 2 ques., later , i got an mail from the codeforces team , that my code had coincided with someone with id rocky1234,... I always do my coding on the online platform like ideone, and it was my bad, that yesterday , my code was on public mode.... i can provide u with the evidences of it ...., and this guy with no shame , just copy pasted my code , and submitted , although his code got skipped many time , almost 15-16 different codes he copied from somewhere and submitted it, and all got skipped, and now i am in trouble due to this guy , as he copied my code also,,, wahich i submitted and got accepted ....... U can go through his acccount , and will find that , he copied surely from online ide's , and got me into trouble , and i dopnt knw who the man he is he..

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4 months ago, # |
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I'm sorry. At the beginning of the educational code forces round 70 (rated for div.2), my network was no longer available, and I thought I couldn't take part in the competition. I got the question through my classmate's network. After I finished it, I submitted it to my classmate's account. Later, my network became available for unknown reasons. I forgot that I have already submitted it to my classmate's account and submitted it to my own account. I promise this will not happen again. If you must ban, please do not ban my classmate's account, ban mine, I will be responsible.

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4 months ago, # |
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Attention!

Your solution 58592979 for the problem 1200C significantly coincides with solutions tiger2005/58583425, wzw19991105/58592979. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

why i get this message? problem c's solution is so simple such that my solution is like other's solution.

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ktk.prajapati is my another account .I submitted div2 B from both the accunts so this problem arised, I wasnt aware of the rules.so consider my actions as foolish mistake and dont penalise me!

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    Yes Dude. Similar Problem

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      Both my friend and I found this problem and used the same template and was checked :(

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4 months ago, # |
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After the system testing of Codeforces Round #578 (Div. 2) I had received the following message.

Attention!

Your solution 58611222 for the problem 1200B significantly coincides with solutions _mitchell/58611222, Pr0n4x/58612964. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I am really sorry for using the default settings on ideone.

My submission which coincides with Pr0n4x's submission : http://codeforces.com/contest/1200/submission/58611222

My submission made 51m:14s before that submission: http://codeforces.com/contest/1200/submission/58595209

These two codes are almost similar, the difference being 4 lines were modified in the accepted solution.

My submission of the solution of a another problem which was made before this contest: http://codeforces.com/contest/1201/submission/58273364

The code #58611222 has similar template portion of this old submission #58273364. I have been using this template for quite a while now. I hope this prove that I was the original author of that code. I am really sorry for using the public settings of ideone. It won't happen again. Thanks a lot.

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It was a mere coincidence .. I published my code on ideone.com that's why the problem has occured.

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I got a mail saying :

Harshil_Bhavsar Attention!

Your solution 58750510 for the problem 1203A significantly coincides with solutions Harshil_Bhavsar/58750510, gaurav2026/58758381. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I really don't have any clue about how my submission was similar as the other person mentioned here. For this question I didn't need to pick any code for the solution from anywhere. So I don't have any proof in favor of myself . But I expect that I should not be penalised because of such a coincidence and I just hope that such coincidence never happens with me again.

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Sorry, I Shared my code with my teammate in the contest, but he has passed this problem, maybe he Shared my code with others. It won't happen again

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I am new to Programming Community and on codeforces which can be seen from my rating and I got mail today of similar code with another guy. I used to write my code on Ideone on c++ or python, but i didn't know anything about my code being public before this mail. Hence this was the last time I wrote any code on Ideone. I apologise to the codeforces community for my carelessness and thus ask to give back my rating as I was not aware of ideone public nature. Sorry and this will not be repeated. My submissions were 58746805 on 1203B and 58765142 on 1203C. Really Sorry for the inconvenience caused.

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Sorry if this is already answered in the text above, I'm not quite sure. I have done the competition with all my conscience. If my code is similar to others,I can only say that it's a coincidence.

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    I really don't know why my code went wrong.

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4 months ago, # |
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Attention!

Your solution 59169115 for the problem 1204B significantly coincides with solutions romaakter/59169115, hossain95/59169512. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

Sorry for that.romaakter and hossain95 both are my account. I am forgot to submit my solution to my main account that's handle name is hossain95. This account(romaakter) i was create for practice. I am promise i will never repeat again.

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4 months ago, # |
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Hello Codeforces, I got the below message from the system after the today's round 581-division 2 :

Attention!

Your solution 59146102 for the problem 1204A significantly coincides with solutions nisarg_kotak/59146102, Uzamaki/59156134. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I am new to codeforces and I don't have any idea about how my submission was similar as the other person mentioned here. It might be because of the reason mentioned in the message but I promise that I do not know the user Uzamaki. I also did not know that someone else can view my code and copy it from ideone.com with default settings(public access to your code — I did not know such an option even exists until I read this message). I promise that I will change the default settings of ideone.com before testing my code again and this mistake will never happen again in the future. I hope that codeforces won't penalize me and block my account for this unintentional mistake. Thanks.

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I apologizes to you for I'dont know your rules clearly. Actually both oldherd and froldH are my accouts. I'm sorry for using these two accouts to attend the round and waste your time. But would you mind to cancel my punishment? You can check my IP to confirm that both froldH and oldherd are my accounts. And that will never happen again.

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i'm really sorry about contest 580.div 2. it is a mistake.It will not repeat it again

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4 months ago, # |
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Hello Everyone, This morning I got a message from system that my submission for 1207A shahayush457/59278266 and 1207B shahayush457/59284151 during the Contest, has been found significantly similar to someone else's solution and a warning that my account may get blocked due to this. I was not aware about ideone.com and I was using it since the day I joined codeforces and for the first time someone has copied my code from ideone. I assure that this will not be repeated. For evidence you may have a look at his solution where he has copied my whole template along with my name and college name written on it anonanon/59284289 . You can also look that both of my submissions were made well before him. So, I request the community to help me out and make my solutions valid for the Educational Codeforces round 71 Div.2.

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4 months ago, # |
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sorry,it was just coincidence please give me rating.

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3 months ago, # |
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Hello Codeforces, I got the below message from the system after yesterday's Educational Codeforces Round 72.

Attention!

Your solution 60112264 for the problem 1217F significantly coincides with solutions YangDavid/60108293, Return.Hao/60112264. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

In this contest, I use the template from https://loj.ac/submission/27031, to solve the problem F. As it's submission time(2017-10-07) is notably earlier than the contest time(2019-09-06), I firmly believe it can be a conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition. Therefore, I appeal to valid my solutions for Educational Codeforces Round 72.

Thanks.

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3 months ago, # |
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Hello,

Attention!

Your solution 60109295 for the problem 1217B significantly coincides with solutions HoldTight/60093170, Piccadilly/60109295. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I apologizes to you for I don't know your rules clearly.To be honest, both Piccadilly and HoldTight(For Practice purpose ,I have created this recently) are my accounts.I'm really sorry for using these two accounts to attend the contest(Trust me ,I have no intention to attend contest from both ID .I have accidentally submitted solution from my Piccadilly account (I am checking standing from Piccadilly account ,checking current standing of my friends).You can verify this fact by submission timing of both account.

I was not aware of the rules.I have gone through all rules and regulations once again.So consider my actions as foolish mistake and don't penalize me.This won't repeat in future and I will be careful from here on.

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3 months ago, # |
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Dear , MikeMirzayanov For contest Codeforces Round #584 - Dasha Code Championship - отборочный раунд (рейтинговый, открыт для всех, Div. 1 + Div. 2) ,, I apologizes to you for I don't know your rules clearly.As, both HOD-HOD and khalid.hedaya98(For Practice purpose ,I have created this recently) are my accounts.I'm really sorry for using these two accounts to attend the contest(I have no intention to attend contest from both ID .I have accidentally submitted solution from my khalid.hedaya98 account (I am checking standing from HOD-HOD's account ,checking current standing of my friends).You can verify this fact by submission timing of both account.

I was not aware of the rules.I have gone through all rules and regulations once again.So consider my actions as foolish mistake and don't penalize me.This won't repeat in future and I will be careful from here on.

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3 months ago, # |
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Hi Mike, I've received this message "Your solution 60556771 for the problem 1209C significantly coincides with solutions know_no_algo/60556320 and xDxD/60560299... etc" I was using ideone with the default settings as I wasn't familiar with it and I'm so sorry for that. I also was struggling with the problem as I also got multiple wrong answers in it. Therefore, that proves that I was trying to solve it.

Anyway, I'm sorry and I won't use ideone again (that was my first time) and I was hoping if you can resolve the issue if possible and get my contest points (even if the points for problem A if I can't get C's points) as I was really hoping to be a pupil this round.

Again I'm sorry for what I've done and won't happen again.

Thanks. Have a great day.

http://codeforces.com/contest/1209

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3 months ago, # |
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Attention! Your solution 60568891 for the problem 1209G1 significantly coincides with solutions 201831990439/60567197, zulongfei/60568891. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation.

He(201831990439) and I are good friends.He's really much better than me,so I imitate his code style,and also ask for ideas during the match,only for the ideas,and no copy.I wrote this code according to his idea, but there was repetition. I'm very sorry.I can don't want the G1 score, but as long as the score of the remaining topics, please agree with my request. Thank you.

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    3 months ago, # ^ |
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    Asking for solutions during contest is a type of cheating and violates the rules.

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    3 months ago, # ^ |
    Rev. 5   Vote: I like it +12 Vote: I do not like it

    When you register a codeforces round, you should read the terms of agreement.

    • have read the contest rules
    • will not violate the rules
    • will not communicate with other participants, use another person's code for solutions/generators, share ideas of solutions and hacks
    • will not attempt to deliberately destabilize the testing process and try to hack the contest system in any form
    • will not use multiple accounts and will take part in the contest using your personal and the single account.

    Term 3 asks you to solve problems independently.

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      3 months ago, # ^ |
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      I accept the punishment. Thank you for reminding me that I will not violate the rules .

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3 months ago, # |
Rev. 4   Vote: I like it 0 Vote: I do not like it

.

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3 months ago, # |
  Vote: I like it -12 Vote: I do not like it

My solution to vatsal_lost/60803426, Lost_In_Lust/60803543 was shown to be copied, but both accounts are my handle. The problem was even after clicking on submit, there was no response from the server (the pretest window didn't open up), so I switched to my other account instead for the submission. Could be an issue with the browser for not opening up the page, so as a safe measure I locked problems on both of the accounts. I don't know if it's ok to have multiple accounts, please help out!

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3 months ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

I used to run my codes before submitting on ideon only. This was coincidentally happended that someone pasted my same code on their account. Please look into it. Sorry, nowonwards i will take care and won't use ideon again. But in a message from system, it was mentioned to block my account pls don't do this. Thanks :)

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3 months ago, # |
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sorry this must be a coincidence i write my code on ideone which is an open source so he must have took it from there.

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3 months ago, # |
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Your solution 60991929 for the problem 1216C significantly coincides with solutions DeAth_123/60991568, skgen/60991929.

Codeforces, DeAth_123 is account of my roommate he had copied my my solution while, I was checking for bugs . He is ready to confess, you can penalise him if you want, please codeforces give my rating of this contest. I swear I will be careful from next time. This won't happen again.

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    3 months ago, # ^ |
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    he is telling truth, I didn't know about the this rules , I know is unethical of me to copy some one else code and submit it as my own. please sir you can demote me but give his rating back.

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3 months ago, # |
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I can't understand what was happened.. I was solve the problem with my idea. How can it be possible to copy others?

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3 months ago, # |
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I got a message from system that my solution 61138460 for the problem 1230A significantly coincides with solutions nafiscode/61138460, tourist_plus_kan/61141927.

It was really a coincidence. I solved the problem by myself. I didn't take help from anyone. I didn't publish the code anywhere.

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    7 weeks ago, # ^ |
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    You must have tested your solution on ideone or pastebin.

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2 months ago, # |
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Your solution 61497889 for the problem 1228A significantly coincides with solutions bharadwaja/61497889, pinnellisumanth1234/61499705, Akshay_495/61500162, snehithm/61500788, shashi_1317/61501368, thotasreejith27/61501478, pavanbobba2000/61502051, ranilreddy.gaddam/61502574, Rishika_Gnanreddy/61506483. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

I apologise all of us stay in a same location so this happened. I I'm sure I won't repeat this again. Ik really sorry

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2 months ago, # |
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Okay.

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2 months ago, # |
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dsudhu/61658603 solution for contest:I dont know this happened but made my ideone.com public so may be due to that and that's simple problem and may be many users have same solution for that problem in contest. sorry i will see that this doesn't repeat again.

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2 months ago, # |
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I am really sorry for the violation caused. To be honest I am a very noob programmer. And last time (Div 3) my contest was supposedly going good. But then when even after the submission and upon pressing the refresh button again and again to see if it turns red or green didn't work. I panicked. And told my friend to submit the same answer, sending the code over whatsapp if she gets the verdict or not. There were quite a few submissions already with a verdict in her account. But then Codeforces Notification popped up saying the delay time in the queue for submissions. By then the damage had been done.

I am extremely sorry for the violation of the rules. And take the entire blame on me for the thing happened here.

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    2 months ago, # ^ |
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    Is there some sort of requirement to make a public apology on this blog? It's kind of annoying that every three days this blog pops up with some sob story. I mean you aren't getting your rating or anything back, so what is the point of posting here.

    Just move on, you made a mistake, don't do it again, all is forgiven.

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2 months ago, # |
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WingsForm/62151234 solution for contest:I dont know this happened but because of my ideone.com public. sorry i will see that this doesn't repeat again.