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LOVELY_BOY_'s blog

Rating problem
By LOVELY_BOY_, history, 5 years ago, In English

In the previous contest , i was not able to solve problem B but when i saw the rating of problem it shows 800 i am feeling very bad for myself not solving 800 rated problem .So the question is that is it really 800 rating problem ?

  • Vote: I like it
  • -4
  • Vote: I do not like it

Comments Comments (6)
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5 years ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

link?

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5 years ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

No it's 825.

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5 years ago, hide # |
 
Vote: I like it +18 Vote: I do not like it

See https://codeforces.me/blog/entry/62865

Approximately this means that if the rating of the problem is equal to yours, then on a typical round you would solve the problem with a probability of 0.5.

Someone with rating 800 had a roughly 50% chance to solve it. Someone with rating 1000 had a roughly 75% chance to solve it. Someone with rating 1200 had a roughly 90% chance to solve it. And so on. It's always possible to have a bad day when luck is not on your side.

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5 years ago, hide # |
 
Vote: I like it +10 Vote: I do not like it

This was a Div1 + Div2 round. So a lot of higher rated people solved that problem and the time was also $$$3 hours$$$ so a lot of lower rated people solved that too.

That's why this $$$800$$$ rated problem is actually tougher than most of the other $$$800$$$ you'll find.

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5 years ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

It was 1400+ for me. After 40 minutes i just wrote anything and submitted and it passed.

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