i hate auto comment.

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

Also gua069, gawkmaster069, hitman_py, ApurbaKumarShow

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).

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

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.

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

When will codeforces have an official report button? :(

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)

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

sinha_yash ogenus MikeMirzayanov cry

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?

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?

Why do these kinds of blogs always look so messy?

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

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

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.

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.

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

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

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

ogenus Cheater

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

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

_ironman_3000 ogenus

Please ban the both of them. MikeMirzayanov cry

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.