MikeMirzayanov's blog

Codeforces: Results of 2013
By MikeMirzayanov, 11 years ago, translation, In English

Hello! Do you feel the breath of New Year?

The clock shows a day before New Year, so it is time to sum up the past. I do not have speech-writers for words in the style of "what recently seemed almost impossible, it becomes a fact of life" so I'll be short. Thank you all! Your unfading interest and constant help inspire Codeforces team for new achievements! Brilliant writers, invisible soldiers: testers, tireless and greedy for knowledge participants — all of you help Codeforces do better!

I've dug into the records and made a partial list of the most notable major improvements of 2013. Some large improvements of our infrastructure are not in the list, as the community can not see them directly.

  • A simple way to add contest from Polygon to Codeforces::Gym.
  • Drafts embedded in text form fields in Codeforces and Polygon.
  • Multiple interface improvements in the contest area.
  • Many improvements of Testlib.
  • Notably improved performance of Polygon on large manual tests.
  • Repeatedly updated compiler versions to the nearly latest.
  • Supported languages: MS C#, Python 3, Go, JavaScript V8.
  • Updated Codeforces testing servers.
  • Polygon supported HTTPS.
  • Organized the first season of weekly Codeforces trainings 12 episodes.
  • Supported organizations in the profile and rating of organizations.
  • Added numerous contests to Codeforces::Gym. Probably the most valuable — a large number of Andrew Stankevich Сontests.
  • Implemented checker and validator tests in Polygon.
  • Implemented macro language support in test scripts in Polygon.
  • Groups on Codeforces have appeared, they can contain contests and blogs.
  • Introduced Mashup Contests — special contests for personal and group training, can be easily composed by problems from rounds or from Polygon.

In addition, in 2013 we not only hosted 64 classical Codeforces rounds, but hosted some tournaments:

Also we took a role of ACM-ICPC 2013 World Finals Press Partner!

And as the detective story can not be without a chase, and the annual report can be do without the fun pictures. Here is a series of images showing the growth of Codeforces:

Registrations on Codeforces
Registrations on Codeforces


Active contestants compared with TopCoder
Active contestants compared with TopCoder


New problems for rounds and tournaments in 2013
New problems for rounds and tournaments in 2013


Submissions per year
Submissions per year


Unique visitors growth (from Google Analytics)
Unique visitors growth (from Google Analytics)


Visits growth (from Google Analytics)
Visits growth (from Google Analytics)


Pageviews growth (from Google Analytics)
Pageviews growth (from Google Analytics)

That's all, runaway to decorate a New Year tree!
Mike Mirzayanov

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Comments Comments (29)
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11 years ago, # |
  Vote: I like it +48 Vote: I do not like it

Every year better than last year! Good luck and thanks a lot!

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11 years ago, # |
  Vote: I like it +20 Vote: I do not like it

Congratulations to you and the Codeforces team

Hope the better results than 2013 in 2014 :)

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11 years ago, # |
  Vote: I like it +20 Vote: I do not like it

Congratulations, Codeforces!

Will there be any update about the Goodbye 2013 round before it begins?

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

    Just in case if you missed it, there was an email saying that it will be rated round with same problem set for both divisions and regular Codeforces rules.

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11 years ago, # |
  Vote: I like it +14 Vote: I do not like it

Wow, better and better. CF has gained its popularity. Hoping to see more and more new features in CF:)

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11 years ago, # |
← Rev. 2   Vote: I like it +16 Vote: I do not like it

As the New Year falls on,thanks to the Codeforces team for all contribution made.

Congratulations for success in 2013! And certainly,happy new year! LOL

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11 years ago, # |
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This year was a greet year. Do more in 2014, I'll wait that you'll show greet statistic in 2014/12/30. :D

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11 years ago, # |
  Vote: I like it +33 Vote: I do not like it

Best wishes to Codeforces! A very great community for algorithm contests. I love the GYM best, because it is really helpful for my ACM-ICPC team. Very appreciated!

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

Congratulations, Codeforces! and hope the number of CodeForces rounds will grow even more ;)

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

Good job Codeforces! ;)

BTW, is the "changing username" feature going to be available again?

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11 years ago, # |
  Vote: I like it +3 Vote: I do not like it

Hm so I usually can only solve Division 2 As and/or Bs. As this contest is rated for both divisions, will I still be able to solve A/B? Or will it be harder?

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11 years ago, # |
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That's cool!

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11 years ago, # |
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What impressive results! We can say that problems are very interesting as well.

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11 years ago, # |
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Happy new year!

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11 years ago, # |
← Rev. 4   Vote: I like it 0 Vote: I do not like it

Please ignore, I wanted to write on some other post

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

This year's best site for problem solving, undoubtedly :) Expecting more in the upcoming days to come :)

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

I hope codeforces better and better. Happy new year！ ^_^

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

Let's see your submission, you will find the new verdict :-)

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11 years ago, # |
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We progress together Codeforces ！ Thank you Codeforces team ！

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11 years ago, # |
← Rev. 2   Vote: I like it +15 Vote: I do not like it

To be honest, Codeforces is easier to participate than Topcoder for new programmers indeed. Congratulations and happy new year !!!

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11 years ago, # |
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Thanks for Codeforces this year, hope to better next year :D

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11 years ago, # |
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Hey all, Congrats to the Codeforces team, your are awesome ! I hope a successful year for all of you, people. I am kind of new to competitive programming (I didn't know about programming contests until a year or so), I really want to qualify to IOI in my country but also if I qualify I want to do something decent yet I don't have much time since I'm a senior and preparing for my baccalaureate. I just can do BFS, DFS, a little of DP and math related problems (combinations and geometry ...). What would be the best way and the best subjects to prepare if I only have 3-4 hours a week ?

Thanks

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11 years ago, # |
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Day day up!I hope I needn't enter the round 11:30pm the next year!

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

Hey,

Could you restore the mashup feature? Maybe it was forgotten after the last match.

Thanks!

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

Happy New Year! :)

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

Good statistics!
Hope greater rating for all in new year!!
But...
One year passed, isn't there any new rounds?!
:)

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11 years ago, # |
  Vote: I like it +12 Vote: I do not like it

Happy new year thanks a lot i'm very like codeforces contest

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

I would like to submit a feature request. Anyone knows where can I post my request?

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