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leonlian's blog

Cheating in round #824 (div 2)
By leonlian, history, 2 years ago, In English

Regarding the cheating in codeforces round #824, here are some submissions that need to be looked at:

https://codeforces.net/contest/1735/submission/174418316 https://codeforces.net/contest/1735/submission/174422837 https://codeforces.net/contest/1735/submission/174422426 https://codeforces.net/contest/1735/submission/174428235 https://codeforces.net/contest/1735/submission/174428573 https://codeforces.net/contest/1735/submission/174413648 https://codeforces.net/contest/1735/submission/174424155 https://codeforces.net/contest/1735/submission/174427490 https://codeforces.net/contest/1735/submission/174422837 https://codeforces.net/contest/1735/submission/174413565

upd: https://codeforces.net/contest/1735/submission/174420701 https://codeforces.net/contest/1735/submission/174419876 https://codeforces.net/contest/1735/submission/174413565 https://codeforces.net/contest/1735/submission/174411134 https://codeforces.net/contest/1735/submission/174411370 https://codeforces.net/contest/1735/submission/174411138

They use the same language, and the code is very similar, while some of the variable names are changed.

MikeMirzayanov please look into this

Thanks, Leon

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Comments Comments (16)
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2 years ago, # |
  Vote: I like it +4 Vote: I do not like it

Cheating really needs to stop, it takes the fun out of the contest for everyone participating

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2 years ago, # |
  Vote: I like it +5 Vote: I do not like it

You should consider those Python 3 and PyPy3 submissions as well, there will be more

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    2 years ago, # ^ |
      Vote: I like it +5 Vote: I do not like it

    I don't have time right now, but I'll check it out later

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2 years ago, # |
← Rev. 3   Vote: I like it -11 Vote: I do not like it 
a,b,c,s=[[0]*10000,[0]*1001,[0]*1001,0]

well they're definitely identical, even judging from this alone. why? while a lot of people do put a marginal part in their arrays to prevent an out-of-bounds error, how they do it is part of their codestyle. when adding a margin on a size $$$100000$$$ array, some do it as $$$101010$$$, others do it as $$$100005$$$, some even $$$2^{17}$$$. it really differs based on one's codestyle, and it can't be more identical than THIS.

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2 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Don't waste your time.

Go and solve some problems!!

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    2 years ago, # ^ |
      Vote: I like it +21 Vote: I do not like it

    I don't think guy is wasting their time rather that helps the community.

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      2 years ago, # ^ |
      ← Rev. 2   Vote: I like it 0 Vote: I do not like it

      Yeaahh he suffering for us.

      But i don't want him to get in these thing which waste too much time instead he can solve some problems to get higher rating in next contests.

      Spoiler
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        2 years ago, # ^ |
          Vote: I like it 0 Vote: I do not like it

        You made an alt just to write bad blogs

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2 years ago, # |
← Rev. 2   Vote: I like it 0 Vote: I do not like it

PyPy 3

https://codeforces.net/contest/1735/submission/174420701 https://codeforces.net/contest/1735/submission/174419876 https://codeforces.net/contest/1735/submission/174413565 https://codeforces.net/contest/1735/submission/174411134 https://codeforces.net/contest/1735/submission/174411370 https://codeforces.net/contest/1735/submission/174411138

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2 years ago, # |
  Vote: I like it +5 Vote: I do not like it

I concluded a few things, and I'm sure of that.

Conclusion

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2 years ago, # |
  Vote: I like it +2 Vote: I do not like it

You did a great job bro !!! We need people like you.

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2 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Similar submissions for problem C on that round

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2 years ago, # |
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Auto comment: topic has been updated by leonlian (previous revision, new revision, compare).

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2 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Cheating is not interesting!I really don't know why they're proud of copying others' code to get Accepted.Cheaters,if you are really good at computer programming,write it by yourself!Who don't know how to copy and paste others' code on the Internet?

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    2 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    I agree. People like to cheat because they want to see their rating go up, this is similar to chess, where people cheat just to gain rating. I can’t quite understand it, because rating is not as important as your coding skill.

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