Updates on curtailing plagiarism

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.

1 Like

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

Actually there are many users in Division 4 that have exactly the same solution submitted for the problem: Problem Link.

Here are the solutions of different users, which are exactly similar:

https://www.codechef.com/viewsolution/1041483940

https://www.codechef.com/viewsolution/1041469590

https://www.codechef.com/viewsolution/1041477665

https://www.codechef.com/viewsolution/1041482388

https://www.codechef.com/viewsolution/1041488646

https://www.codechef.com/viewsolution/1041491416

https://www.codechef.com/viewsolution/1041483079

https://www.codechef.com/viewsolution/1041495966

https://www.codechef.com/viewsolution/1041497215

https://www.codechef.com/viewsolution/1041498209

https://www.codechef.com/viewsolution/1041494826

@admin

On January 22, 2024, I received an email regarding allegations of plagiarism concerning my submissions. I want to emphasize that I have not engaged in any form of cheating or plagiarism.

Upon receiving the notification, I promptly responded within a few hours, as per the instructions provided, expressing my innocence and willingness to cooperate fully in resolving the issue. Despite my immediate response and subsequent follow-up emails, I have yet to receive any acknowledgment or resolution regarding my case.

It has been distressing to witness a significant decrease of 275 points in my rating, especially knowing that I am innocent of the allegations presented against me. I have been an active and dedicated member of the CodeChef community, and it is disheartening to see my efforts tarnished by an unjustified penalty.

I kindly request a thorough review of my case and the evidence provided therein. I am more than willing to provide any additional information or clarification required to demonstrate my integrity and commitment to fair play.

Moreover, I urge you to expedite the process of resolving this matter and restoring my rating to its rightful position. The prolonged delay in addressing this issue has not only affected my standing within the community but has also caused undue stress and frustration.

I trust in CodeChef’s commitment to maintaining fairness and transparency in its operations. As such, I am hopeful that my case will be given the attention it deserves, and the necessary steps will be taken to rectify the situation promptly.

please @admin take action on this I have written 3 mails to help@codechef.com but they have not taken any action

Sincerely,
Priyam Kesarwani
codechef id- priyamstar_22
email- priyamkesarwani124@gmail.com

Hey Priyam,

Sincere apologies for missing the previous emails.

We will review your solutions at first week of March.

I did not get any reply or update on the reports that I made through the threads above, against players allegedly involved in cheating in the Starters 118 contest :

(1.) Thread 1

(2.) Thread 2

(3.) Thread 3

(4.) Thread 4

I even wrote emails to CodeChef over the same issue containing all the details, but still no reply after one month.
@sumit9311 @admin

How come starters123 Alice and Bob question (Yet Another Alice Bob Game Practice Coding Problem - CodeChef) be considered for plagiarism check. The solution for this question is pretty simple and only consists of just 3 if-else condition check. There is a high chance that my code will be exactly same with other users also. And most importantly this question cant be solved in any other method namely dp. So in my opinion this type of question which have only one simple solution shouldnt be considered for plagiarism check.
Here is my code
include <bits/stdc++.h>
using namespace std;
int main() {
int t;
cin>>t;
while(t–)
{
int n,a,b;
cin>>n>>a>>b;
if(a>b)
{
cout<<“Alice”<<endl;
}
else if(a==b)
{
if (n%(a+1)!=0)
cout<<“Alice”<<endl;
else
cout<<“Bob”<<endl;
}
else
{
if(n<=a)
cout<<“Alice”<<endl;
else
cout<<“Bob”<<endl;
}
}
// your code goes here

}
So i hope that I would get rid of the plagiarism check and my code will be accepted(I recieved an email saying that i have cheated)
Here are few codes that the system found similar with mine
1.
include <bits/stdc++.h>
using namespace std;

int main() {
int t;
cin>>t;
while(t–)
{
int n,a,b;
cin>>n>>a>>b;
if(a>b)
{
cout<<“Alice”<<endl;
}
else if(a==b)
{
if (n%(a+1)!=0)
cout<<“Alice”<<endl;
else
cout<<“Bob”<<endl;
}
else
{
if(n<=a)
cout<<“Alice”<<endl;
else
cout<<“Bob”<<endl;
}
}
// your code goes here

}
2.
include <bits/stdc++.h>
using namespace std;

int main() {
// your code goes here
int t;
cin>>t;
while(t–){
int n,a,b;
cin>>n>>a>>b;

 if(a>b){
     cout<<"Alice"<<endl;
 }
 else if( a==b){
      
      if(n%(b+1)==0){
           cout<<"Bob"<<endl;
      }else{
            cout<<"Alice"<<endl;
      }
     
 }
 else {
     
      if(n<=a){
           cout<<"Alice"<<endl;
      }else{
    
           cout<<"Bob"<<endl;
           
      }
     
     
     
 }

}

}
There is simply no way for my solution and their solutions to be different. So I demad myself declared not guilty of cheating
@dpcoder_007 @admin @asof_770192 @hrishik85 @sumit9311 @brightbluedot

Profiles committed Cheating:

Submissions:
https://www.codechef.com/viewsolution/1049217401
https://www.codechef.com/viewsolution/1049218777

(All the submissions are same) → Just changing all variables only.

please review my emails and account @sumit9311 . I am waiting it is affecting my coding carrier. If its possible to revert my ratings tell me as soon as possible or I make a new codechef account.

Where is START143 plagiarism update?