MikeMirzayanov's blog

Codeforces: Extra Registration on Rounds
By MikeMirzayanov, history, 8 years ago, translation, In English

Hello.

Now it became much unlikely to skip a round due to carelessness during the registration. In the coming rounds (in experimental mode) we will add new feature extra registration (it is good terminology? additional registration?).

This means that after the period of regular registration (as usual, 5 minutes before the start of a round it will be closed) there will be another additional period of registration. It will start in 10 minutes after the start of the round with duration of 20 minutes, that is, it will close after 30 minutes from the start of the round.

The role of the 10 minutes is twofold:

  • on the one hand it is quite possible to solve the easiest problem in the first 10 minutes — so it makes a motivation to register on time,
  • on the other hand the system is loaded much during the first minutes of a round, as a registration invalidates some internal caches it is better to open extra registration after 10 minutes.

When registering during the extra time a participant is automatically assigned to a random room (among suitable for its role).

  • Vote: I like it
  • +682
  • Vote: I do not like it

Comments Comments (17)
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8 years ago, # |
  Vote: I like it +23 Vote: I do not like it

Great Job Mike!!!! It is one step more towards making codeforces best OJ out there......

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    8 years ago, # ^ |
      Vote: I like it +90 Vote: I do not like it

    CodeForces has been the best OJ. Now it's even better.

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8 years ago, # |
  Vote: I like it +51 Vote: I do not like it

Did this happen as a result of Errichto's Blog?

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    8 years ago, # ^ |
      Vote: I like it +82 Vote: I do not like it

    Partially, I thought about it before his blog, but his blog was a very efficient catalyst.

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8 years ago, # |
  Vote: I like it +147 Vote: I do not like it

I think it should be called late registration.

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    8 years ago, # ^ |
      Vote: I like it +21 Vote: I do not like it

    Like in poker rooms :)

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8 years ago, # |
  Vote: I like it -26 Vote: I do not like it

What about rooms and hacking? will the new registration go to the same room?

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    8 years ago, # ^ |
      Vote: I like it +17 Vote: I do not like it

    When registering during the extra time a participant is automatically assigned to a random room (among suitable for its role).

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8 years ago, # |
  Vote: I like it +1 Vote: I do not like it

Thank you very much :)

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8 years ago, # |
  Vote: I like it +37 Vote: I do not like it

This is awesome! What's the rationale behind the 30 minute limit though? Why not leave it open till the end? MikeMirzayanov

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8 years ago, # |
← Rev. 2   Vote: I like it +5 Vote: I do not like it

The extra registration phase is a great idea, Mike. I suggest that you call it extended registration.

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

Is it going to be used for rated contests?

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    8 years ago, # ^ |
      Vote: I like it -17 Vote: I do not like it

    Oh no they're going to invent a new special type of rounds to experiment this feature. (sarcasm)

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      8 years ago, # ^ |
        Vote: I like it -12 Vote: I do not like it

      So they have to call it experimental instead of educational....

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8 years ago, # |
  Vote: I like it -8 Vote: I do not like it

Since we now have this feature, how about making rating change to everyone even those who didn't submit any problem?
To stop participants who do not participate because they do not solve the hard problems

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8 years ago, # |
← Rev. 2   Vote: I like it 0 Vote: I do not like it

wow!!! Most of the time I can't register due to late... ;) I think this will help latecomers (like me :P) a lot... :-)

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