BanTheCheaters's blog

Cheaters found in CF Round #660 , #658 and #657
By BanTheCheaters, history, 4 years ago, In English

I found these two cheaters in Yesterday's contest ( Codeforces Round #660 (Div. 2) ). They are from from the same institute (Jaypee Institute of Information Technology, Noida). They have been doing this in all almost every past contests they both participated. CF authorities should atleast disqualify them from Round #657 , as they have gained positive deltas from that round unlike other rounds where they have dropped.

User 1: Agraj Garg agrajgarg

User 2: Vatsal Agarwal Warhead38

Submissions(For CF Round #660):

A: 88462008 by Agraj and 88463088 by Vatsal (Apparently Vatsal has also submitted two absurd solutions to fool the authorities )

B: 88479313 by Agraj and 88478517 by Vatsal

The solutions are similar, in some contests they change variable names but in many they haven't bothered to do that either.

Suspicion :

  • Submission time differ by 1 min (time to make required changes)

  • Same Number of solved problems in every contest

  • Same accepted submission with variable change

PROOF :

For Round #657 ->

For Round #658 ->

For Round #660 ->

Maybe if you present me with 2 similar looking submissions, I cannot definitely say whether they cheated. But it is very very suspicious for 2 users to have such kind of similarities in all the problems in a many contests.

They did the same in the last #658 , #657 , #656 , #654 , #652 and gained big deltas. These are the contest history of Vatsal and Agraj , same performance in common contests.

I know CF team is very busy with more important things but I think pointing out even a single cheater is still worth it. Kindly take appropriate actions MikeMirzayanov to stop such activities happening on a regular basis.

  • Vote: I like it
  • +43
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Comments Comments (7)
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4 years ago, # |
← Rev. 2   Vote: I like it +9 Vote: I do not like it

Users found cheating should be penalized heavily.....

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

It would have been much better if they were competing against each other rather than solving problems together. They might have been inspired by The Great Karan.

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4 years ago, # |
  Vote: I like it +2 Vote: I do not like it

Seems like Jaypee Institute of Information Technology, Noida as become a real pain in ass +_+

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4 years ago, # |
  Vote: I like it +4 Vote: I do not like it

agrajgarg and Vatsal38 Wake up now, It's time to shine

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4 years ago, # |
  Vote: I like it +2 Vote: I do not like it

Cheating and still Cyan :) Stop cheating, you'll love it when you next become Expert.

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4 years ago, # |
← Rev. 3   Vote: I like it +4 Vote: I do not like it

Famine is necessary for copying . But these people will never learn. Even the names of variables are same.

YeAcdega function of vatsal and solve function of Agraj are exactly same XO

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