ShardsOfNarsil's blog

Meaning of question rating.

By ShardsOfNarsil, 16 hours ago, In English

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

  • Vote: I like it
  • 0
  • Vote: I do not like it

»
15 hours ago, # |
  Vote: I like it 0 Vote: I do not like it

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.

→ Reply
»
15 hours ago, # |
  Vote: I like it +3 Vote: I do not like it

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

→ Reply
»
6 hours ago, # |
  Vote: I like it 0 Vote: I do not like it

i think the rating of a problem is somehow related to the number of people who solve that problem in the contest.

→ Reply
»
6 hours ago, # |
  Vote: I like it +4 Vote: I do not like it

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.

→ Reply
  • »
    »
    43 minutes ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    This would make sense if Div1 + Div2 had higher rated participants around 1500 rating, but why would that be the case?

    → Reply