mohitm's blog

By mohitm, history, 7 weeks ago, In English,

In Codeforces Round #604 (Div. 2) I was able to solve A,B and C problems and I received 1314 rating.

I have given total 3 contest on codeforces.

  • contest 1 — solved only A, rating — 1370 , rank — 5680
  • contest 2 — unable to solve any problem, rating — 1255 , rank — 4168
  • contest 3 — solved A,B and C, rating — 1314, rank — 2165

Despite solving more problems and getting better rank in contest 3 than in contest 1, why my ratings are less than that of contest 1 ? __

 
 
 
 
  • Vote: I like it
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7 weeks ago, # |
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Auto comment: topic has been updated by mohitm (previous revision, new revision, compare).

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7 weeks ago, # |
  Vote: I like it +22 Vote: I do not like it

Rating is an accumulative metric of how well you're doing. You start at 1500 when you create your account. Your first contest resulted in -130 drop. Your third contest resulted in a +59 increase. Your rating change can be a metric of how well you did in a competition, not your rating's absolute value.

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7 weeks ago, # |
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I think you need to solve 4-5 problems per raund. It depends on the number of problems and how many participants solved it.

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    7 weeks ago, # ^ |
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    I think solving 4-5 questions in a round would make you candidate master

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      7 weeks ago, # ^ |
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      Oh, then I hope to achieve this rank when I come back to rounds!

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7 weeks ago, # |
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4 problems in 1-1.5 hour. 5 problems in 2 hours to become purple

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7 weeks ago, # |
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To answer the literal question in the title, you can use the Virtual Rating Change Calculator to compute what would be the rating if you have the approximately same performance over something like 10 or 20 contests. (however there may be some bugs in the code — check out https://github.com/sjsakib/cfviz/issues)

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7 weeks ago, # |
Rev. 2   Vote: I like it 0 Vote: I do not like it

Solving A,B and C below an hour should increase your rating, or at least wont lower it, however doing A,B,C and easy D is when you really climb. Also your rank is lower, because rank is acummulative, and before ranking you always start at 1500 rating