Updates on curtailing plagiarism

@admin Please see this!

In today’s contest, in Div. 4, for question TWO PILES.

Please go to the submissions bar and select the options to view only the ACCEPTED solutions.

Then the MIRACLE happens, we see that the 1st, 2nd, 4th, 7th, 8th, etc. all the users have the EXACT SAME SOLUTIONS with the variable name changes all in C++14 or C++17.

Please BAN them, as I saw that there are already records of them cheating previously.

2 Likes

There are many accounts from Manipal University, Jaipur. All of them have similar answers, and hog about top 500 spots in DIV 4 rankings.

4 Likes

Exactly what i noticed too. This needs to be adressed

2 Likes

List Of Cheaters(Div 4): Plz check solutions on P5 and P6 they are 100% same
Rank 4: mu219301231_5d
Rank 5: lovishaneja29
Rank 6: mu219301529_5i
Rank 7:manastandon
Rank 8:mu219301606_5e
Rank 9:mu219301258_5e
Rank 10:mu219301196_5e
Rank 11: godspeed_gg
Rank 12: mu219303153_5i
Rank 13: mu219301268_5g
Rank 14: mu219310147_5b
Rank 15: mu219310292_5b
Rank 16: aryshah43yahoo
Rank 17:mu219301513_5i
Rank 18:mu219301645_5i
Rank 24:mu219310154_5e
Rank 26:mu219301672_5j
and many more and lasts till 1st 10 pages of div 4 ranking…

2 Likes

I found that there are many same submissions(even with comments) on problem MAXIMISESUM in START104D:
https://www.codechef.com/viewsolution/1026300885
https://www.codechef.com/viewsolution/1026304032
https://www.codechef.com/viewsolution/1026304527
https://www.codechef.com/viewsolution/1026304569
https://www.codechef.com/viewsolution/1026308098
https://www.codechef.com/viewsolution/1026309328
https://www.codechef.com/viewsolution/1026309431
https://www.codechef.com/viewsolution/1026311043
CodeChef: Practical coding for everyone and many more…

1 Like

Really, this problem is very simple. We have to place our vaccine right next to the infected cell so that we can get the maximum number of vaccinated cells. And I don’t even know him (@harshraj438524). This forum is really bullshit.

Let’s say you’re having a problem to write a code that will add two numbers. If there are so many participants how do you do this so that your code is different for each participant?

@shivrajput_11
Don’t worry about it . If your claim is fair , it will be taken care by the end of year.

2 Likes

@shivrajput_11 - please reply to the original email from plagiarism@codechef - the team will review the appeal.

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I saw many students in div4 starters 107 ranking from 200th to 700th rank starting with klu23… with 449 points
There are many same codes in problem ODDMATRIX.

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I am facing the same issue idk how my code was similar to someone else’s and now i am being penalized for even though i dont have a history of cheating but this guy does.

1 Like

can you send me that mail you sent

Respected Sir/Madam,
I am Ravi Jha CodeChef user ID : ravikjha7. I have been plagiarized for Starters 39, Question No 3. Well, The Question was pretty straight forward and The solution was just too easy. So, for that reason the code might match to some particular extent to others but my code is quite different from other users who have been told to have the same code as me. Please look into the problem and help me because the two users who have been mentioned in the mail, I neither know them and neither have complete same code as them. So, please remove my plagiarism as soon as possible. Thank You!

I do not understand why CodeChef is not reporting/banning cheaters???
Below are the cheaters of Starters 115 Div2

[Binary Grid Forces]
https://www.codechef.com/viewsolution/1038441956
https://www.codechef.com/viewsolution/1038441702
https://www.codechef.com/viewsolution/1038432226
https://www.codechef.com/viewsolution/1038441594
https://www.codechef.com/viewsolution/1038441042
https://www.codechef.com/viewsolution/1038439204
https://www.codechef.com/viewsolution/1038439286

there are 50+ similar submissions

@admin @hrishik85 I request you to please take action against these people

1 Like

I do not understand why CodeChef is not reporting/banning cheaters???
Below are the cheaters of Starters 115 Div2

[Binary Grid Forces]
https://www.codechef.com/viewsolution/1038441956
https://www.codechef.com/viewsolution/1038441702
https://www.codechef.com/viewsolution/1038432226
https://www.codechef.com/viewsolution/1038441594
https://www.codechef.com/viewsolution/1038441042
https://www.codechef.com/viewsolution/1038439204
https://www.codechef.com/viewsolution/1038439286

there are 50+ similar submissions

@admin @hrishik85 I request you to please take action against these people

5 Likes

Similiarly for Make all zero problem also
https://www.codechef.com/viewsolution/1038441888
https://www.codechef.com/viewsolution/1038441394
https://www.codechef.com/viewsolution/1038441258
https://www.codechef.com/viewsolution/1038441122
https://www.codechef.com/viewsolution/1038440523
https://www.codechef.com/viewsolution/1038440931
CodeChef: Practical coding for everyone (This submission is full of comments)
and many more

1 Like

I want to report a user on CodeChef who copied solutions from YouTube videos during the Starters 118 Division 4.

He has copied this solution:CodeChef: Practical coding for everyone completely 100% from this YouTube video: https://www.youtube.com/watch?v=qbXMINfMU4o

He has copied this solution:CodeChef: Practical coding for everyone completely 100% from this YouTube video: https://www.youtube.com/watch?v=UgonrTQG7VI

He has copied this solution:CodeChef: Practical coding for everyone completely 100% from this YouTube video: https://www.youtube.com/watch?v=XMxyuctlT6Y

He has copied this solution: CodeChef: Practical coding for everyone completely 100% from this YouTube video: https://www.youtube.com/watch?v=WJgosI3YWTE

His solution: CodeChef: Practical coding for everyone is not 100% copied but very similar to the solution shown in the YouTube video: https://www.youtube.com/watch?v=KFMc9x5OXNY

All of these videos were published while the contest was going on CodeChef, that is around 9 PM IST. He also changed his coding language from C++ to Python during the contest which is also suspicious.
@admin

Apart from the above mentioned YouTube channel, the solution: CodeChef: Practical coding for everyone also matches 100% with the solution circulated on the telegram group: HERE, during the contest.

The solution: CodeChef: Practical coding for everyone also matches with the solution circulated on the telegram group: HERE, during the contest.

I’m attaching the screenshots below.

There is a fair chance that the user is using Telegram and YouTube channels to copy solutions.


@admin

Even this code of another User: CodeChef: Practical coding for everyone, 100% matches the code: CodeChef: Practical coding for everyone of the above mentioned User copied from Telegram and YT channels during the contest as described above in detail.

Same goes for this solution: CodeChef: Practical coding for everyone by User, he has just changed the variable names.

Same goes for this solution: CodeChef: Practical coding for everyone by User, he has just changed the variable names.
@admin @dpcoder_007

Still these users were not plagiarized or not banned even if they copied the same code and its very disguisting for genuine coders.
And also in the Problem is it uniquely decodable submissions tab, we can able to see recently explained codes of some plagiarized submissions and that also very funny and annoying.
And one more thing ratings are not recalculated for over 3-4 months.

2 Likes

@brightbluedot
Please write your concern to help@codechef.com. The team will address your query there.

1 Like