Hi Ahanab,
I am surprised to see this blog, I also suspect the older guys were teasing me, but I appreciate the opportunity to clarify a few points regarding my contest performance:
Time gaps between D, E, and F: In Div. 3 contests, problem statements are straightforward. While implementation for E was underway, I had already read and thought through the ideas for D and F. A 6-minute window for D and F represents coding time, not total thinking time.
Problem H (Hash Collision & 40m Debugging): My original solution for H failed due to a hash collision (which got hacked). It took me nearly 40 minutes to analyze the collision, adjust my hashing parameters, and resubmit an AC solution. This manual trial-and-error debugging process clearly demonstrates genuine problem-solving rather than copying or prompt-generating.
Coding Style & Templates: My code consistently utilizes standard competitive programming practices typical for VOI training: global static arrays for cache performance, compact variable names (u, v, kq), and customized fast I/O snippets. This template is identical across my Codeforces and AtCoder profiles. Let's just see my coding style in the code I solve for a random Binary lifting problem:
include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp> // #include <ext/pb_ds/tree_policy.hpp>
define ll long long
define ull unsigned long long
define elif else if
define bit(mask,i) ((mask>>i)&1)
define task "main"
define mod 1000000007ll
define inf 0x3f3f3f3f
define linf 0x3f3f3f3f3f3f3f3f
using namespace std; // using namespace __gnu_pbds; templatebool maxi(T &x,const T &y){ if(x<y){ x=y; return 1; } return 0; } templatebool mini(T &x,const T &y){ if(x>y){ x=y; return 1; } return 0; } void addmod(ll &x,const ll &y,ll md=mod){ x+=y; if(x>=md) x-=md; } void submod(ll &x,const ll &y,ll md=mod){ x-=y; if(x<0) x+=md; } ll n,q,x,l,r,t,kq,a[200005],p[200005],lp[200005],rt[200005],up[19][200005]; vectorva; int main(){ if(fopen(task".INP","r")){ freopen(task".INP","r",stdin); freopen(task".OUT","w",stdout); } ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin>>n>>q>>x; for(int i=1; i<=n; i++){ cin>>a[i]; p[i]=p[i-1]+(a[i]-x); va.push_back(p[i]); } sort(va.begin(),va.end()); va.erase(unique(va.begin(),va.end()),va.end()); memset(lp,0x3f,sizeof(lp)); memset(rt,0x3f,sizeof(rt)); for(int i=n; i>=0; i--){ ll id=lower_bound(va.begin(),va.end(),p[i])-va.begin(); ll nt=lp[id]; lp[id]=i; rt[i]=min(nt,rt[i+1]); } for(int i=0; i<=n+1; i++) up[0][i]=(i<=n?rt[i]:inf); for(int k=1; k<19; k++) for(int i=0; i<=n+1; i++) up[k][i]=(up[k-1][i]<=n)?up[k-1][up[k-1][i]]:inf; while(q--){ cin>>l>>r; t=l-1; kq=0; for(int k=18; k>=0; k--) if(up[k][t]<=r){ kq+=(1<<k); t=up[k][t]; } cout<<kq<<'\n'; } }
If you still think I'm a bit suspicious, feel free to show me anything wrong with my code style, otherwise please voluntarily remove the post and publish a correction and apology to me, restoring my reputation.
I welcome MikeMirzayanov or any Codeforces coordinator to inspect my submission code diffs and history. I am always open to healthy competition and constructive discussions.








first of all, does this mean you read D,E and F at the same time?
second of all, it is clear that this blog is either formatted by ai or generated by ai, if you cant even explain your situation without ai, then how do you even convince anyone that you can write code yourself?
lastly, getting rank 115 as a pupil is highly sus
in my opinion, this blog doesn't prove anything and the last thing you can do is to video record yourself in a div3 to prove that you didnt cheat
Yeah, I read it about the same time, see my reply below
I love multitasking, normally I watch the test and code at the same screen
In this test, I just struggle on translation, and why I'm just ranked pupil but I can do these, because the test starts at 9:35 PM in UTC+7, and I usually sleep at 8:30-9:00 PM. I Literally have to stay up late for that. My parents don't want me stay up late, only when I'm a part of VOI team. I have to do it fast because I don't want to be absolutely tossed or scold by my parents. So I don't usually participate Codeforces Contests, and my rating is a bit low
Yeah, I swear, read this below, I used to be a victim of AI
Also, everyone think it's strange to use hash in problem H, that's also the reason why I didn't use AI, because I can think a bit outside the box
Anyone here please read the post and my 2 Comments, I will only trust you when you show me MOSS check by yourself or admin, I bet you can try to train an AI to use 100% my coding style
I got absolutely embarrassed in the team :(
oh yeah, I am used to multitasking a lot, my computer just have 8GB of RAM but I open literally more than 10 tabs of Chrome and ... it still fine
I was once a victim of AI abuse. I failed the exam for VOI team with just 5 points out of 40. Now, I swear, I just use AI for translation, I'm not so good in English, I'm now in the team for VOI with about 17.5 points out of 40. I tried a lot to escape from AI with the score is 3.5 times higher than last year.
My older guys are just teasing, or even bully me, so when I see your post, I am truly saddened and discouraged because my talent is not being recognized.
So, please, I'm right, I'm not Cheating, if you see something suspicious with my code, show me. Otherwise, I say the second time, please voluntarily remove the post and publish a correction and apology to me, restoring my reputation.
Hope anyone can see that :(
im pretty sure you still need to explain how you got from rank 6000 to rank 115 this quickly
This guy choked on problem C *1200 with 6000 AC, yet he managed to AC the harder problems in last Div 3 with fewer than 300 AC, especially the last problem which had under 50 AC wtf
How can you be on VOI team when (update 8:57 10/11/2026) the lower_bound score wasnt published yet? moreover, in my school there are 20 people who 20 points + and still not sure all they are in the team. PS: I will be really happy if you are in the VOI team. because I have higher score then you :>
why did you use hashing for h lil bro??? i thought it was literally just calculating prefix sums
what the hell is this???!
for some reason, I tried using my gemini and chatgpt to solve problem F and it seems both AIs gave code similar to yours
oh yeah, thanks for your feedback, so can you try record that but in completely new chat, just 1-2 command to see if it's trưe. I'm pretty sure you may try to train both to toss me
what do you mean?
hey there.
there is some point i wanna talk about to tell you why most people think you used AI to do CP problems. we will not discuss about your code style since your code does not look suspicious at all.
firstly, there seems to be a huge difference between your performance when you do contests offline and online. in the provincial team selection test this year, you scored 17.5/40 points, while the knowledge needed to reach that milestone is just basic DS and brute force. on the other hand, you always reach a high rank in contests that allow internet access (such as the recent div. 3, ABC and other miscellaneous rounds), higher than everyone in the team, so high that almost everyone is confused.
secondly, you blatantly said that you "used AI for the idea of the problem" and "did not just give the AI a prompt and copy-paste AI's code to submit" somewhere around 1 week ago, while asking a third party to solve the problem is still an illegal behavior in live contests.
i don't really know if you have stopped using AI yet since i'm not in your VOI training team but with this highly suspicious submission time (like how would a newbie manage to AC problems with the pace of an GM???), there is a reason for ppl to believe that you cheated.
i'm sorry if you can prove that you did do all of the problems without using any outside help, but that does not negate my reasoning above.
wait? how do you know his score was 17.5/40 and how do you know the difference between his performance in offline and online contests
someone in the team told me about that. well, let's just say that i had a convo with a VOI competitor in that school and they told me A LOT about this guy.