Do educational contests give more Delta?
Difference between en2 and en3, changed 64 character(s)
In the Educational Round 171 my friend https://mirror.codeforces.com/profile/KushKushal got a rank of 555 out of 10900 official div2 participants and got a performance of 1991 , and my other friend https://mirror.codeforces.com/profile/arnavra3 in the codeforces round 983(Div.2) got a rank 515 out of 14500 official participants got a performance of 1981 only even though there were more official participants and he got a better rank?↵
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Could anyone tell me how this works?

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  Rev. Lang. By When Δ Comment
en3 English isolve1400s 2024-11-07 17:33:26 64
en2 English isolve1400s 2024-11-07 17:32:27 2
en1 English isolve1400s 2024-11-07 17:32:09 442 Initial revision (published)