ShardsOfNarsil's blog

Meaning of question rating.

By ShardsOfNarsil, 31 hour(s) ago, In English

why does a 1500 rated question from div1 + div2 feels way harder than a 1500 rated question from div2?

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30 hours ago, # |
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It's not like human can set same level of difficulty problems in every contest. You found some 1500 rated problem from div1 + div2 feels harder then a 1500 rated question from div2. I also found vice verse.

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30 hours ago, # |
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In my experience, the length of the contest affects the calibration of the problem rating (at least in terms of implementation difficulty). I think it's because in a longer contest more people will have time to solve it so the user rating of the average solver will be lower

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21 hour(s) ago, # |
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i think the rating of a problem is somehow related to the number of people who solve that problem in the contest.

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21 hour(s) ago, # |
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I believe that a rating of x on a problem means that half of the people around that rating will be able to solve that problem. Since Div 1 + Div 2 usually have higher rated participants in general, a 1500 rated problem might be harder in general than a Div 2 1500 rated problem.

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    16 hours ago, # ^ |
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    This would make sense if Div1 + Div2 had higher rated participants around 1500 rating, but why would that be the case?

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14 hours ago, # |
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True. And it's much harder to get the same performance at Div.1 than at Div.2.

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