CarViz's blog

how do you identify cheaters?
By CarViz, history, 7 weeks ago, In English

hello, i'm wondering how to confirm if a user that seems suspicious is a cheater (obviously theres no way to be sure, but just to be more confident). i saw apersonref's preformance on the last contest (div3), getting a WA1 on A, failing to solve E, and im not sure if im correct in calling them a cheater. if anyone has better advice in how to spot cheaters, would you be open to telling me? just what are some general signs and stuff?

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7 weeks ago, hide # |
 
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to me, getting WA1 very often for reasons other than input formatting seems like a pretty good sign to me, but im not sure if this is accurate.

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    7 weeks ago, hide # ^ |
     
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    spacing is lowk somewhat weird, brackets are inconsistent, variable names look AI generated, and the problems he are doing are also very low rated and don't match with his performance. his rank jumps are also very large

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      7 weeks ago, hide # ^ |
       
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      he falls under all of those im pretty sure, but like what about the person below me though (ch_ki_mkc)? he has weird comments in his code, (though its only 2 problems) out of contest he only did A's, and has huge rank jumps. like idk how to check each person for this kinda stuff and just know since its really a case by case basis. im wondering if i or an average person (on codeforces) would be able to identify this.

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        7 weeks ago, hide # ^ |
         
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        i think most of the time its just top 100-200 who really get investigated, especially lower ranked people

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7 weeks ago, hide # |
 
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That’s just a weak argument. You can always skip a problem and move on to another. Also, stop creating more unnecessary blogs.

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7 weeks ago, hide # |
 
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you are obviously cheating if youre not using fjstring, gdcode, or elsienumber

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7 weeks ago, hide # |
 
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if (!(cin >> n >> k)) return 0;
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