To_catch_a_cheater's blog

By To_catch_a_cheater, history, 5 weeks ago, In English

I am writing this to just report some cheaters I found in the latest round (#804). aman_cod, bored_kid, Noob_coder_042003, 1_2_3_4_5_9 are the ones that have cheated.

Have a look at the submissions of problem E from the contest Please look at the code in main void and compare as they have obscured their code to avoid plagiarism detection.

First one to submit : 162806135 Then the second guy submits it in python : 162804059 Then these two submitted the first code as it is but with alot of unnecessary code : 162802356, 162804537

To confirm you could also match their other submission from the contest and will find the similar pattern described above and all four of them solved the 4 questions i.e., [A,B,C,E].

Please MikeMirzayanov and geranazavr555 look into it and ban these guys.

Sorry for posting a blog which does not contribute anything to the community.

 
 
 
 
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5 weeks ago, # |
  Vote: I like it +13 Vote: I do not like it

Auto comment: topic has been updated by To_catch_a_cheater (previous revision, new revision, compare).

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5 weeks ago, # |
  Vote: I like it +61 Vote: I do not like it

I wrote this as these are not some low level cheater, all 4 of them are ranked in top 50 in the previous contest which hurts a lot of people's rank. So, they need to be banned.

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5 weeks ago, # |
  Vote: I like it -183 Vote: I do not like it

Hey bro you have said I submitted it second but I submitted it even before the first guy. I have not obsfrucrated a single line in my code. I don't know how their code has similarity with me but it must be a coincidence and I have not cheated for sure.

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5 weeks ago, # |
Rev. 3   Vote: I like it +32 Vote: I do not like it

Yeah exactly, 1_2_3_4_5_9 is a mass cheater that has two another alt accounts which are 14_15_16, 10_11_12

Also one person told me in dm that these people sell solutions during contests with high price, they're such a ..... people that have to banned from this community!

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5 weeks ago, # |
  Vote: I like it +46 Vote: I do not like it

Amazing work, big fan

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5 weeks ago, # |
  Vote: I like it +64 Vote: I do not like it

Noob coder but pro cheater

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5 weeks ago, # |
  Vote: I like it +41 Vote: I do not like it

Along with banning cheaters, also add a cheater tag on their profile and don't allow them to change their profile info or delete account. This way they will get a lifetime cheater tag.

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5 weeks ago, # |
  Vote: I like it +47 Vote: I do not like it

Sorry for posting a blog which does not contribute anything to the community.

I think it contributes a lot to the community. Just like referees contribute immensely in any sport, you did too. Thank You ヾ(@⌒ー⌒@)ノ

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

Ban them, plz.

Support To_catch_a_cheater!!!

Codeforces should be a fair platform for us to code and contest.

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    5 weeks ago, # ^ |
      Vote: I like it +3 Vote: I do not like it

    Never banned them, this will only lead to new account poping up every day. Just give them lifetime cheater batch. And take all rights to change their social info in any way. This is better than banning them i guess.

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      5 weeks ago, # ^ |
        Vote: I like it -15 Vote: I do not like it

      Yes I agree with u.

      Also, I think Codeforces can develop an anti-cheating system. It just need to delete useless codes (like comments) and compare the codes to judge if the code should be skipped.

      Many other coding and contesting websites have this system and I think Codeforces can develop one too.

      If there is something wrong with my comment, plz, point it out for ne, thx.

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5 weeks ago, # |
  Vote: I like it +29 Vote: I do not like it

Great job bro, it contributes much!

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5 weeks ago, # |
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The rating changes looks so similar for all of them (except one) lmao

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5 weeks ago, # |
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As everybody can see They all solved ABCE. These stupid idiots sell solutions on Telegram and they think they are smart. here I am attaching ss where you can see ABCE gang leader boasting of having solved ABCE. I urge everybody to respect new CM(cheater) 1_2_3_4_5_9. He has completely revolutionized the way of coding(cheating). He has invented a new trick for fooling cf anti-plague test. I would ask fellow coders to nominate him. for nobel prize of coding(cheating). I am sure he will take cp community to a new level. Good luck 1_2_3_4_5_9 I hope you will code(cheat) hard and become a grandmaster.

![](https://imgur.com/a/1Hc0Tua)

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

This guy did some serious preparation for this post. Reaching CM level by cheating is something very bad. I have seen a lot of people struggling to reach even pupil, yet they rely on their hardwork. These cheaters should really get banned for doing this type of thing.

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5 weeks ago, # |
  Vote: I like it +10 Vote: I do not like it

1_2_3_4_5_9 — You dirty stinking cheater. I hope you never participate again.

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5 weeks ago, # |
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1_2_3_4_5_9 has been cheating since the beginning otherwise he would have chosen a single programming language not a mixture of python , java and c++. He first collects the solution in c++ and then translate it to python . In every contest he submits the easy problems in python and the difficult ones in C++ when there is not enough time to translate/problem is too tough to do so/ he is greedy and wants a better rank by not wasting time. Please MikeMirzayanov and geranazavr555 look into it and ban these guys. Also 1_2_3_4_5_9 other accounts like 14_15_16 10_11_12. I bet there would be other accounts as were which he uses to test his solution before translating to python .

HE IS A SHAME TO THE COMMUNITY !!!!!!!!!!!!

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5 weeks ago, # |
  Vote: I like it +4 Vote: I do not like it

To_catch_a_cheater, love your YouTube content man, also great work! 1_2_3_4_5_9 is totally the coolest dude of all time, he's such an idol i can't thank you enough for letting me know of their amazingly awesome existence /s

okay, but seriously...
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5 weeks ago, # |
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Also, man, just pointing it out... All submissions are ID-ed in order, right? so basically the one which has a numerically lesser value is obviously submitted first (You can also check the time from the submission link). So, even though it doesn't matter lol, the order which you have described in the blog is not how it must have taken place. Having said that, let me reiterate that THE ORDER OBVIOUSLY DOESN"T MATTER and we can clearly see that the four of them have plagiarized (thank you, To_catch_a_cheater!) and they should be BANNED. Many people get a rank way lesser than they deserve due to cheaters like these, and it's honestly sad.

Also...

"Sorry for posting a blog which does not contribute anything to the community."

This definitely does contribute to the community, man. Cheaters should be banned as they steal the ranks of those who honestly work hard and code sincerely and honestly, leading to lesser ratings and, in severe cases, even demotivation. While it might not be a "contribution" in the strictest sense as one would expect (like the educational blogs many top-rated coders post, which are great ofc), but this is also necessary. Kudos for exposing these cheaters!

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5 weeks ago, # |
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In the case of 1_2_3_4_5_9, aman_cod, bored_kid and Noob_coder_042003, CM stands for Cheat-Master lol

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5 weeks ago, # |
Rev. 4   Vote: I like it -29 Vote: I do not like it

Wtf

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    5 weeks ago, # ^ |
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    50% reservation candidates

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      5 weeks ago, # ^ |
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      I wrote this in the context of sarcasm , I am also an IITian, don't be political here.

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5 weeks ago, # |
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Wow. Legendary Grand Cheaters :O

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5 weeks ago, # |
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No this do contribute because these cheaters are taking the rights of the others and you are the one who is standing for their right

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5 weeks ago, # |
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Why are these cheaters still have their as accepted?

MikeMirzayanov why aren't you doing the plag check and at least skipping these cheaters?

it's 3 days now, skip their solutions or ban them. Becoming a CM by cheating and solving problems is unacceptable and unfair to those who solve on their own.

MikeMirzayanov skip their solutions and ban them.

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    5 weeks ago, # ^ |
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    Maybe the plagiarism checks of different languages are not easy. But these cheaters should be banned right now.

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      4 weeks ago, # ^ |
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      They won't be banned anymore. CF plag checker is a joke and here the cheaters have escaped after adding 40 lines of code between every 5 lines of code to escape moss. Still, no action taken by MikeMirzyanov to ban the obvious cheaters. If moss is this easy to break obfuscated Code then the plag checker of cf is useless. It is assured that there are several cheaters who are cm and even master

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4 weeks ago, # |
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It is incredibly shameful that despite reporting MikeMirzayanov about the cheater gang in the last contest and the following submissions with obvious Obfuscated Code wrt to the first submission and the subsequent submissions by these cheaters who changed the code to python to submit python submission. Until now, none of their solutions has been skipped; in fact, their ratings have increased. Great job MikeMirzayanov in harbouring cheaters on the platform. It won't be long before we see cheaters in yellow or even red.

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3 weeks ago, # |
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Why is this guy still not banned?