Updates on curtailing plagiarism

@admin look into this matter
https://www.codechef.com/viewsolution/56727855
https://www.codechef.com/viewsolution/56727849
https://www.codechef.com/viewsolution/56727838
https://www.codechef.com/viewsolution/56727829
https://www.codechef.com/viewsolution/56727805
https://www.codechef.com/viewsolution/56727699
https://www.codechef.com/viewsolution/56727783
https://www.codechef.com/viewsolution/56727782
https://www.codechef.com/viewsolution/56727743
https://www.codechef.com/viewsolution/56727715

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@ger_alt07 from where are you getting all this matter :laughing:

1 Like

https://www.codechef.com/viewsolution/56732435
https://www.codechef.com/viewsolution/56732548
https://www.codechef.com/viewsolution/56732709
https://www.codechef.com/viewsolution/56732541
@admin these all are submission for EVENXOR .pls check all these solutions are exact same.also check last 10 minutes submissions of all questions you will find many same solutions.

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By checking AC solutions submitted few minutes before the end of the contest :slight_smile:

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I also see that the submission rate increases very sharply when the contest is about to endā€¦ I used to think that some sort of logic clicks into their mind to solve the question as the contest approaches its endā€¦ :upside_down_face:

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REPORT for user @anon61691861
He has been cheating for a very long time . @admin please look into it. He obfuscates his code by adding unnecessary variables . Moreover his submissions are very similar to others.

Here are a few examples :-

CONTEST INFI21B
PROBLEM MARBLE
Look at his submission CodeChef: Practical coding for everyone
See lines 17,18,23,26,40,51.This is a clear indication of plagiarism .
Also his remaining code matches exactly with others

Here a few I found. There are many more
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

CONTEST START22B
PROBLEM EQLIS
Look at his submission CodeChef: Practical coding for everyone
See lines 26,27,28,32.This is a clear indication of plagiarism .
Also his remaining code matches exactly with others

Here are a few . There are many more
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

PLEASE look into it. @admin

3 Likes

https://www.codechef.com/viewsolution/56726985

1 Like

greedy approach

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REPORT for USER https://www.codechef.com/users/sohamsrimany
He has been cheating for over a year . Plz ban his account !!!
He simply copies code from youtube/telegram blindly an getting ranks just because NO plagiarism checks are done AT ALL !!!
Just look at his submissions for the problem TREEPERM
CodeChef: Practical coding for everyone

It matches with hundreds of other submissions which are EXACTLY same but still nothing has been done . About an year to pass
https://www.codechef.com/viewsolution/44962920
https://www.codechef.com/viewsolution/44963063
https://www.codechef.com/viewsolution/44963162
https://www.codechef.com/viewsolution/44963364
https://www.codechef.com/viewsolution/44963471
https://www.codechef.com/viewsolution/44963583
https://www.codechef.com/viewsolution/44963820
https://www.codechef.com/viewsolution/44963820
https://www.codechef.com/viewsolution/44964211

These are just few . If you look his other contests you will find the same thing .
@admin @shaily_adm

3 Likes

I tell you, why cheating is on the peak nowadays. These guys cheat to show great ratings/stars/ranks on their resume to get shortlisted in placement companies. They are not afraid of getting their rating down to 1 star due to MOSS plagiarism checker because the moment, MOSS catches their plagiarism, its too late, as plagiarism is checked in the range of 6 months to 1 year or more, and, till then, the cheaters gets placed in the company. So, itā€™s a big loophole, that all are misusing!

2 Likes

Cheaters in Div1 too :
@admin please look into this :

https://www.codechef.com/viewsolution/56888036
https://www.codechef.com/viewsolution/56907275

1 Like

how can you say they will get placesā€¦
interview round bhi kuch hota haiā€¦
interview me nikal jayenge jab nhi banenge questionsā€¦

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You donā€™t know the fact that cheating is taking place in interviews too.

2 Likes

@admin 10 days are about to pass . Any updates regarding : START22B ??

4 Likes

this is code chef id - " vits_cs201077 "
this man is cheating in long challanges of january
https://www.codechef.com/viewsolution/56730647
https://www.codechef.com/viewsolution/56717719
https://www.codechef.com/viewsolution/56679677

he became 3 star coder just by cheating!!!

1 Like

code chef id
" vits_cs201039 "

he is cheating in long challange
https://www.codechef.com/viewsolution/56945598
https://www.codechef.com/viewsolution/56972754
https://www.codechef.com/viewsolution/56955286

1 Like

how??? bro interviewers ke samne kaise laptop kholega koi banda :joy::joy::joy:

1 Like

@admin and all other higher officials of codechef. In last 5 minutes of the contest, the code of " Non Zero Subarray Xor"
was made public by someone. and all the submissions done in last 4-5 minutes have the same code almost (you can check).
THis same thing was done in " Maximising Vacations"

SO PLEASE TAKE SERIOUS ACTION AGAINST THEM .
@codechef @admin

5 Likes

mourya_satyam | CodeChef User Profile for Satyam Mourya | CodeChef and amiy_tiwari | CodeChef User Profile for Amiy Tiwari | CodeChef seem suspicious, but not sure. Requesting someone from the community to look at their submissions and find any concrete evidence if they can.

3 Likes

Yup, here it is:
https://www.codechef.com/viewsolution/56770904
https://www.codechef.com/viewsolution/56801065

They both are quite similar. I am attaching the exact and nearly same snippets below.

    ind = n//2
    ans = []
    
    a1 = a.copy() 
    b1 = b.copy()

    i=ind
    if a[i]==a[i+1]:
        if a[:i+1].count(a[i])!=i+1:
            ans.append([1,i+1])
            for j in range (0,i+1) :
                if (a[j] == '1') :
                    a[j] = '0'
                else :
                    a[j] = '1'
        else:
            ans.append([i+2,n])
            for j in range (i+1,n) :
                if (a[j] == '1') :
                    a[j] = '0'
                else :
                    a[j] = '1'

Other guyā€™s code: (very cleverly wrote a function to flip)

    idx=n//2
    ans=[]
    i=idx
    if a[i]==a[i+1]:
        if a[:i+1].count(a[i])!=i+1:
            ans.append([1,i+1])
            flip(a,0,i+1)
        else:
            ans.append([i+2,n])
            flip(a,i+1,n)

Edit: Another pair of submissions

https://www.codechef.com/viewsolution/55657243
https://www.codechef.com/viewsolution/55659749

2 Likes