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123gjweq2's blog

Are people really that much better nowadays?
By 123gjweq2, history, 3 days ago, In English

This problem: https://codeforces.net/contest/733/problem/E

is the exact same as this one: https://codeforces.net/contest/1936/problem/B

except the former one is like 8 years older than the latter one. The former one is rated $$$2400$$$, while the latter one is rated $$$2000$$$. Does this mean that a candidate master today would've been a grandmaster 8 years ago?

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3 days ago, # |
  Vote: I like it +103 Vote: I do not like it

When knowledge is more freely available, people become better

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    2 days ago, # ^ |
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    I think people's IQ increases very slowly. I just guess that because in ancient times, there were many smart people; if they were in modern times, they would be 'smarter' too.

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3 days ago, # |
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Damn, I wanted to upvote but missclicked downvote. Sorry man.

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    3 days ago, # ^ |
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    It's ok. Just make sure to do better in the future.

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    3 days ago, # ^ |
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    Mike should implement undoing a down/upvote, or at least if you downvoted and then upvoted the upvote should undo the downvote and vice versa.

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    2 days ago, # ^ |
      Vote: I like it +22 Vote: I do not like it

    Do not worry, make an alt to upvote it.

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3 days ago, # |
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I think it's a combination of people getting actually better and the tendency of harder problems being overrated. Note that the former one is an E problem, so most people had to spend most of the time on A-D already, and there were not enough time left for them even to try E.

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    3 days ago, # ^ |
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    And we try hard for B(assuming it's solvable), but not much for E(assuming it's hard).

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3 days ago, # |
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Also, in the old days when the pretests are weak, it's possible someone with an almost correct submission to be hacked/FST, and they won't be considered solved the problem during the contest. Hence affecting difficulty calculation.

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3 days ago, # |
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It is not easy to compare the rating of problems in this case. To solve E you had to solve A, B, C, and D, to solve B you only had to solve A. Naturally, E would have a higher rating.

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3 days ago, # |
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You are comparing div 2 to div 1 which is not that fair. Also, the problem statement is rather long on the first one.

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    3 days ago, # ^ |
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    So that div2E problem it's like a div1C?

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      3 days ago, # ^ |
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      When div 1 + 2 rounds happen, div. 2 E is usually the same as div. 1 C. But -is-this-fft- says that div. 1 C's are usually less standard than regular div. 2 E's, so they aren't exactly the same.

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3 days ago, # |
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People of the past had a skill issue

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    3 days ago, # ^ |
    ← Rev. 3   Vote: I like it -15 Vote: I do not like it

    That's why People of the past can't cross 4000+ rating... You know who !!!

    xD. Hope you get Sarcasm.

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3 days ago, # |
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Because it's a binary search, even with hard implementation.

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3 days ago, # |
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I believe it's true I was able to solve few 1900 problem without looking editorial or other ppls code but that's not the case for recent 1900. See problem like 2021C2 - Adjust The Presentation (Hard Version) or 2002D1 - DFS Checker (Easy Version) compare to 1900 problem from 6xx, 7xx cf round it's actually insane. 1900 problem in past more like 1700 nowadays.

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    3 days ago, # ^ |
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    I've noticed that too. Older problems also seem to use a bit more DS/A.

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2 days ago, # |
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Just saying this problem is rated 2800. https://codeforces.net/contest/10/problem/D

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2 days ago, # |
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you're right! I have been upsolving 1900 rated problems and definitely feeling the difference between old and new problems.

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4 hours ago, # |
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When I start doing high rated problem then my level I first try the last page then second last . . . cause the last page problem are lot easier then first page I even see some 1400 rated last page problem which are easier then 1000 first page problem.

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4 hours ago, # |
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A second hand product is always lower priced

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    4 hours ago, # ^ |
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    Even though I don't agree with you, the world needs more proverbs like this: proverbs that you can just drop from time to time and everyone will know what you're talking about.

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