noobsolver24's blog

The worst round in Codeforces
By noobsolver24, history, 3 hours ago, In English

Codeforces Round 1002 was probably one of the worst rounds in this platform, because of massive cheating using o3-mini :(

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3 hours ago, # |
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Auto comment: topic has been updated by noobsolver24 (previous revision, new revision, compare).

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3 hours ago, # |
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Interesting, What makes you say this? I just tried it for problem C and it could not solve.

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    3 hours ago, # ^ |
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    you can just try to solve d then it help you :)

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      3 hours ago, # ^ |
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      i jus feel like similar problem appeared in past somewhere. thats why many ppl solved it and it could be a possibility that o3 had the problem data so it solved it too or iam pretty much coping ;/

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3 hours ago, # |
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fr

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3 hours ago, # |
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RIP the upcoming Div4.

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3 hours ago, # |
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This guy didnt even try to hide it :skull:

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    3 hours ago, # ^ |
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    well the questions were already fucked. imo they don't match their elo

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3 hours ago, # |
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M-m-m-massive????

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110 minutes ago, # |
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I wander if it is really a div2 contest?

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93 minutes ago, # |
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Check how the codestyle of the 6th place harsh__h is different in problem D and in other problems. That's insane if he cheated since he is CM/Master and apparently works at Google, and also was a problemsetter.

The different use of spaces (D has, and ABC don't), also '\n' in D instead of endl in ABC.

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    38 minutes ago, # ^ |
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    No, he didn't. I know him personally. He is my senior cum mentor. He has been giving contests from many years. D has a very well-known solving technique of using 2D dijikstra. Even I was able to think of the right solution within a couple of minutes. He perhaps had a similar template by which he was able to submit the solution within 3 mins. You just have to change the innermost loop inn dijikstra .i.e if dist[node1][node2] > prev_dist+abs(node1-node2). I didn't have any such template so it took me some time.

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      33 minutes ago, # ^ |
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      Nobody argues that D is straightforward. How do you explain the different codestyle?

      Also, what do you mean templates? He has different codestyle even in input and output sections across the problems in this round, there are no templates in that.

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        33 minutes ago, # ^ |
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        By the way, you don't have to defend him. It is he who cheated not you.

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          21 minute(s) ago, # ^ |
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          The input is the same. Even I use while(t--) thing it's quite common. On basis of output which is just endl and \n you can't blame a reputed coder. He is a master and he could have just interchanged by mistake for '\n' and endl

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      32 minutes ago, # ^ |
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      senior cum mentor ? wtf is that?

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      4 minutes ago, # ^ |
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      It doesnt matter how standard the question is he aint reading all that and typing out that code in 3 minutes. Its chatgpt in action.

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    37 minutes ago, # ^ |
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    If u want I can give you more questions and links for this kind of problem using 2D or higher order dijikstra.

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75 minutes ago, # |
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Agree. The worst rount of CF. And also for me. My contest was very bad. I have been feeling very bad for two days. :([

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    50 minutes ago, # ^ |
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    have you tried all contests in CF that you say this one is "worst"?

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12 minutes ago, # |
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u are right bro this round is little bit tough and its require a good understanding and practice to solve

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