M1chael_Petrov's blog

By M1chael_Petrov, history, 4 weeks ago, In English

Today I’ve got some interesting messages, that my code was identical to some other participants code.

My C solve: 265996712

Other's C solve: 266045067

My D solve: 266022195

Other's D solves:

266029086

266030481

266031091

266031520

266034835

266038553

266039854

266044066

266044752

266045672

Actually, these solutions on both problems are completely same to mine. This can’t be an accident, so this solutions are copied from me. Since I didn't give my solution to anyone, and didn't keep the code publicly available, this could only happen if one of the participants solved the problem, blocked it, copied my code, and sent it to his friends.

In my room 3 participants(excluding me) solved C and D, but only one blocked them both. It’s Motherhacker123. Also he solved only C and D not even trying for A and B, which is quite strange, since the round was rated for him. Also all the submissions of participants from the list were sent after he blocked his task.

This method of cheating at contests allows the person who sends solutions to everyone to remain unpunished, and all the punishment goes to another honest participant.

Please look at this problem,MikeMirzayanov

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4 weeks ago, # |
  Vote: I like it +25 Vote: I do not like it

Solution hacking should be after the contest.

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4 weeks ago, # |
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I really feel sorry for you. Just asking, what IDE do you use for coding? For example, if you use replit, people can see your code without you intending that to be the case. You are right though that someone might have just sent your code to other people.

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    4 weeks ago, # ^ |
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    I am using Pycharm for python and CLion for C++. They are both offline, so no one can see my code

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      4 weeks ago, # ^ |
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      Ah ok. You are probably right then about someone else sending your code. Hopefully someone with the power can do something about it.

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4 weeks ago, # |
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Actually bro this is done by abhiphispita das.His is id is 1_2_3_4_5.I have proofs also of them discussing about this blog in the group u can dm me I will give you all the details.

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    4 weeks ago, # ^ |
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    It is quite obvious that there are people and groups like that and it's good, that people are literally shouting about this problem. The bad part is that it's very difficult to catch them all. I hope that codeforces admins will help honest participants as soon as possible.

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      4 weeks ago, # ^ |
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      The people doing it are the ones who are moderators and they are banning the posts of the people trying to expose them.They will not be punish.

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4 weeks ago, # |
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This is becoming a big issue they lock the solution and then give the solution of the other participants to there friend.

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3 weeks ago, # |
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I think it is necessary to change the solution hacking, as in div3. There's the same issue again in the next div2