16777mt16's blog

pls ban cheater sinha_yash and rollback the rating
By 16777mt16, history, 5 months ago, In English

https://mirror.codeforces.com/submissions/sinha_yash

some evidence

very AI-LIKE code, with SPACES between operators and variable names, and EMPTY LINES between parts and parts.

NO HUMAN-WRITTEN CODE in its DAILY practice, which means it performs without any practice(for human).

its performance in cfr1069 is TOO WELL comparing to other performances.

SKIPPED submissions in a round before cfr1069.

for problem F

well, i have a question: how did you directly switch to and think and then finish programming F after solving C in 17 minutes?

and WHY DID YOU NAME A VARIABLE zero_adjust WHICH IS TOO LONG FOR THESE KINDA CONTESTS?

and HOW WOULD YOU LIKE TO NAME THE VARIABLE current_sum WHICH IS ALSO TOO LONG AND AI-LIKE??

so, according to what i've said, sinha_yash is 101%(with 1% error) a cheater and should be banned.

meanwhile, it took rk5 in cfr1069 which is too unfair for other high ranking competitors lower than rk5. so its submissions should be SKIPPED and the rating should be rolled-back.

MikeMirzayanov

note: ogenus is also an AI-cheater, click here for more information.

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5 months ago, hide # |
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Vote: I like it -14 Vote: I do not like it

i hate auto comment.

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5 months ago, hide # |
 
Vote: I like it +7 Vote: I do not like it

sinha_yash you'd better not keep your silence if you are innocent.

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5 months ago, hide # |
 
Vote: I like it +3 Vote: I do not like it

Also gua069, gawkmaster069, hitman_py, ApurbaKumarShow

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5 months ago, hide # |
 
Vote: I like it -8 Vote: I do not like it

Can't say about the F solve in 17 minute but I have never cheated before and I ALWAYS PUT SPACES AROUND OPERATOR (If i miss it sometimes then i go back and put spaces (MOST OF THE TIME)). Also, Empty lines and large variable names can be used (I also do this in some of the solutions).

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5 months ago, hide # |
 
Vote: I like it +14 Vote: I do not like it

what about devilshubhra this guy, his code looks clear attempt at obfuscation.

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5 months ago, hide # |
 
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suspect that at least 100 individuals are using AI for cheating, across Div 1, 2 and 3. A significant portion of the top-ranked contestants in every competition have shown a drastic, night-and-day difference in performance before and after September.

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5 months ago, hide # |
 
Vote: I like it -14 Vote: I do not like it

Also almost no single person switches between using long long 352026275 and int128 352234104 like wtf. you cannot find any excuses

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5 months ago, hide # |
 
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When will codeforces have an official report button? :(

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    5 months ago, hide # ^ |
     
    Vote: I like it -8 Vote: I do not like it

    I think the best course of action is for cf admins to just use the community-made list and ban everyone there. The community members have much more time and incentive to ban cheaters than the cf admins, and if the list is managed correctly, I think that cf could ban most cheaters.

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5 months ago, hide # |
 
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What about SHATTA? He's unrated before the nearest Div2 and he solve really fast, even 1min for problem B/C (I forgot it's B or C)

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5 months ago, hide # |
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The cheaters gua069 and gawkmaster069 have become GMs now in only 8 contests. They are now ranked 4th & 6th in India. https://mirror.codeforces.com/ratings/country/India

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5 months ago, hide # |
 
Vote: I like it -17 Vote: I do not like it

sinha_yash ogenus MikeMirzayanov cry

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5 months ago, hide # |
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Vote: I like it -69 Vote: I do not like it

LOL I thought only newbies post these things and I don't get why you focus on them . It hurts your rating?? But , aren't you here to get better problem solver isn't it independent of others?

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5 months ago, hide # |
 
Vote: I like it +6 Vote: I do not like it

what a beautiful codding style 16777mt16


		cin>>n>>m>>modp;m=qpow(m,modp-2);
		mim[0]=1;for(int i=1;i<=n;i++)mim[i]=mim[i-1]*m%modp;
		for(int i=1;i<=n;i++)(ans+=mim[i/2]*(n-i+1))%=modp;
		(ans*=ans)%=modp;
		for(int i=1;i<=n;i++)(ans+=(modp+mim[i/2]-mim[i/2*2])*(n-i+1))%=modp;
		for(int i=1;i<=n;i++)pre[i]=((i==1?0:pre[i-2])+mim[i/2])%modp;
		for(int i=1;i<=n;i++){
			(ans+=2*(modp-(i==1?0:pre[i-2]))*mim[i/2]%modp*(n-i+1))%=modp;
			(ans+=(i-1)/2*2*mim[i/2]%modp*(n-i+1))%=modp;
		}
		cout<<ans<<'\n';ans=0;

also, rank 3500 in div1+2, then rank 82 one month later and then rank 7 in Div1?

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Vote: I like it +98 Vote: I do not like it

Why do these kinds of blogs always look so messy?

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5 months ago, hide # |
 
Vote: I like it +3 Vote: I do not like it

Its most of the time some random guy from India..

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5 months ago, hide # |
 
Vote: I like it +1 Vote: I do not like it

i saw just now, his submissions are skipped, and gua069 has been disabled, they're listening

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    5 months ago, hide # ^ |
     
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    Whats the point, that guy will just make another account. You can't change the mentality of a society.

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5 months ago, hide # |
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Not saying your claims are wrong, but after working in industry I now always use spaces around operators, empty line between different code parts, meaningful variable names and sometimes even comments. Solely because it has become second nature to me. So these parameters alone are not enough.

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5 months ago, hide # |
 
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We can introduce no text copy for the problem statement tabs until the contest ends. As it will be a pain to enter the entire question in AI chat. This might not eliminate the cheating but can reduce it.

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5 months ago, hide # |
 
Vote: I like it +3 Vote: I do not like it

with SPACES between operators

ah yes, we ALL know competitive programmers don't dare lay a finger on the spacebar (!)

i like being able to read my own code easily and some spacebar hits here and there don't impede speed much

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    5 months ago, hide # ^ |
     
    Vote: I like it +14 Vote: I do not like it

    Even long variable names don't necessarily cause serious time loss. If your IDE offers any kind of autocomplete or suggested variables, then there is no difference between writing n and number_of_elements.

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      5 months ago, hide # ^ |
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      and also for library headers being included separately instead of the catch-all include <bits/stdc++.h> — nvim/kate+clangd does that and nvim is somewhat popular so even if someone were to do that it wouldn't be the strongest case

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5 months ago, hide # |
 
Vote: I like it +1 Vote: I do not like it

his solutions are skipped now. may be he can brag this on linkedin. also take a look at Nakshatra_21 and yashcoder123

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5 months ago, hide # |
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actually i think gawkmaster069 is a cheater who use AI.

he easily change his code from py->c in problem F.

and his code style in A,B,C1/2 is totaly different

especially in problem B there is a:


                nhh = dp[pr][cc] + add_base
                nc = cc + h
                if nc > k:            #here was the issue prev code
                    continue
                if nhh > dp[h][nc]:
                    dp[h][nc] = nhh

#here was the issue prev code

352197482

this means that he must has use AI in the contest！

please ban him！ cry MikeMirzayanov

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5 months ago, hide # |
 
Vote: I like it +12 Vote: I do not like it

ogenus Cheater

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5 months ago, hide # |
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and also for _ironman_3000 i think he cheats too!

his code style in problem B/F/C1,2 is completely different

i don't think a person can use i32 in the first code and zen tunr to use int in a nother code

352194006 352202496

please skipped him MikeMirzayanov cry

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also http://mirror.codeforces.com/profile/aaryadeep21

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_ironman_3000 ogenus

Please ban the both of them. MikeMirzayanov cry

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4 months ago, hide # |
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Hi Codeforces community and admins,

I would like to bring attention to the user duck0101.

https://mirror.codeforces.com/profile/duck0101 Submission: https://mirror.codeforces.com/contest/2173/submission/352091552 After reviewing their recent submissions, I noticed a strong pattern suggesting the use of AI tools (like ChatGPT/Copilot) during contests. I hope the cheat detection system and MikeMirzayanov cry can investigate this case to maintain a fair environment for everyone.

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