what do you think?
1 Like
my rank was 315 after solving 3 question quickly but due to massive cheating in 4 question my rank was pushed to 1030 and now i am unhappy .
6 Likes
Same thing happened to me, my rank was around 200 after solving 3 questions and at the end it jumped to 964(around 700 people solved the question in span of 20 minute, which is obviously impossible). I thought that there is some simple solution to this problem and I am thinking way too much but in the editorial it is Dynamic programming, clearly 889 submission is way too much for this level of problem.
3 Likes
Please do a plag check @admin . It is very unjust to genuine candidates who try to solve and get good ratings but due to lot of cheating in the contest it becomes difficult
5 Likes
in just last half an hour 500+ submissions of D and my rank fall down from 500 something to 1100 something…insane!
2 Likes
In that case, ratings of all participants shall be updated only after Plagiarism checks are done (based on updated leader board). We can wait for more than 10 days, provided rating changes are fair.
- Agree
- Disagree
0 voters
4 Likes
@admin
Exact same code for MERGEBS in starters 22
sol 1: CodeChef: Practical coding for everyone
sol 2: CodeChef: Practical coding for everyone
3 Likes
Looks like the community is really angry about MERGEBS. XD
4 Likes
Well the meaning of obvious cases should be defined properly here because i can see that people who had copy pasted the same code in CDRV2021 are not penalised so please justify the meaning of obvious cases.@admin
obvious cases:
https://www.codechef.com/viewsolution/55623881
https://www.codechef.com/viewsolution/55627330
Moreover i can’t believe that only 70 people cheated in this contest where the number of submissions jumped around 600+ in the last hour.
So the process of plagiarism checks (or so called MOSS checks) seems to be randomised or hand picked rather than implemented on whole rank list.
Any justification?!
8 Likes
I struggled for months to become 4 stars and so-called developers from my college are 4 stars in a few contests!
if this continues than value of 4 star will decrease for sure
8 Likes
I have an obvious case of 2 people submitting the same solutions with minor changes. They plagiarized the entire contest of START22B.
INTSEQ:
https://www.codechef.com/viewsolution/56721200
https://www.codechef.com/viewsolution/56637267
EVENXOR:
https://www.codechef.com/viewsolution/56722211
https://www.codechef.com/viewsolution/56662318
EQLIS:
https://www.codechef.com/viewsolution/56686499
https://www.codechef.com/viewsolution/56722912
MERGEBS:
https://www.codechef.com/viewsolution/56723798
https://www.codechef.com/viewsolution/56703682
If this isn’t an obvious case and they won’t get penalized, kindly justify.
2 Likes
In that case, ratings of all participants shall be updated only after Plagiarism checks are done (based on updated leader board). We can wait for more than 101010 days, provided rating changes are fair.
When participating in contests on Codeforces, we typically get preliminary updates for ratings in a few hours after each contest. And then a few days later (after plagiarism check results are ready) there’s a contest results rollback and ratings recalculation. There are not too many cheaters on Codeforces and rating adjustments after cheaters removal are usually very small.
Implementing rating rollbacks and recalculations may be not an easy job for CodeChef developers, but this would be a perfect solution. Though even just drastically reducing the number of cheaters by regularly catching and kicking them out is going to help a lot.
8 Likes
https://www.codechef.com/viewsolution/56732586
This solution is copied, same as many others posted above by different users
1 Like
I am unable to post all links in one, as limit is 10 link per post.
There are many more T.I.H. persons but it will take too much time 
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
4 Likes
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
4 Likes
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
3 Likes
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
4 Likes
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
4 Likes
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
5 Likes
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
CodeChef: Practical coding for everyone.
4 Likes