Zhdun's blog

When will Codeforces end? The last mark in the updated ranking history
By Zhdun, 3 years ago, translation, In English

As you know, Codeforces recently added the ability to scroll through the user's rating history. I decided to take this opportunity to find out how long this wonderful service plans to exist.

To do this, I went to my page, looked at my rating

Spoiler

Next, I began to zoom out as much as possible. At one point, I got something that looked like the flag of Indonesia.

After zooming out a bit more and scrolling a bit to the right, I found that at some point new divisions stop being added. To be more precise, this is about the 251st millennium:

It seems that we are close to a solution! It remains only to zoom in to see a more accurate value.

So, 275760 is, apparently, the last year of Codeforces' existence! Let's zoom in even more to get the accuracy up to a month...

Let's continue to improve the accuracy...

Bingo! Codeforces will cease to exist on September 13, 275760. I don't think you should worry at the moment. The date will not come quite soon, because no exiting time calculator accepted such a year.

Please write in the comments what code you would like to save in case of Codeforces closure!

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Comments Comments (25)
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3 years ago, # |
  Vote: I like it +57 Vote: I do not like it

This is quite hilarious! :v But on a more serious note, yes, I think, Codeforces should put some concern in this rating graph zooming system.

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

Hahah, cool! It's interesting.

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3 years ago, # |
← Rev. 2   Vote: I like it -52 Vote: I do not like it

This feature should be deleted.

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

    I believe that this feature should remain, because it helps us to see the smallest changes in the rating in the rating graph.

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3 years ago, # |
  Vote: I like it +71 Vote: I do not like it

Hope I can reach red by then

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3 years ago, # |
  Vote: I like it +173 Vote: I do not like it

This is likely because the page uses JavaScript to display the rating graph.

JavaScript's Date objects have a range of 100,000,000 days before/after January 1, 1970. This means that JavaScript can only display dates up to September 13, 275760.

Reference: ECMAScript Language Specification

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    3 years ago, # ^ |
    ← Rev. 2   Vote: I like it +10 Vote: I do not like it

    Well, fortunately, at least it's not bounded to 2038 :)

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3 years ago, # |
← Rev. 4   Vote: I like it +144 Vote: I do not like it

Screenshot-2020-12-16-145412
Well, I never knew that codeforces is such an ancient site. Like it has been in existence since 271821 B.C.E !!

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

    It actually started on 20.4.-271821.

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      3 years ago, # ^ |
        Vote: I like it +5 Vote: I do not like it

      yeah, edited XD..!

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      3 years ago, # ^ |
        Vote: I like it +18 Vote: I do not like it

      I wonder if anybody took part in contests at this time :D

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        3 years ago, # ^ |
          Vote: I like it +30 Vote: I do not like it

        I guess ruban might have been there

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          3 years ago, # ^ |
            Vote: I like it +5 Vote: I do not like it

          I just saw ruban's graph. Boy, does he live by the saying "Practice makes perfect". Jokes aside, I admire his love for competitive coding/ problem-solving in general.

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3 years ago, # |
  Vote: I like it -29 Vote: I do not like it

I see its just a flex of reaching CM. You didn't have to do this sarge.

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3 years ago, # |
  Vote: I like it +38 Vote: I do not like it

Next constest must include task on this theme.....

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

Guess they forgot to take modulo.

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3 years ago, # |
← Rev. 2   Vote: I like it +21 Vote: I do not like it

While exploring the new ability to zoom in on the rating change graph, I stumbled upon a strange thing: there is a strange white stripe between each rank! Why is it needed?

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

    I also noticed a strange thing: when you approach the rating too close (just a numerical value, on the border), then it becomes a fractional number! Why this saddle is a mystery!

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

    And I noticed that if you bring the edge in the rating graph as close as possible, it will become VERTICAL in the literal sense of the word.

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

There must at least be a "Reset Zoom" button. I have to reload the page to get it right again. And mostly while scrolling on a profile, when I don't even have the intention to change zoom, it gets changed.
MikeMirzayanov

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

I'm glad someone does the exact same things as me before going to bed

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3 years ago, # |
  Vote: I like it +22 Vote: I do not like it

Thank you for ALL your feedback. I didn't think this post would resonate!

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3 years ago, # |
  Vote: I like it +13 Vote: I do not like it

If we talk about innovations, tell me, last year there was a feature in the new year theme of codeforce, when you point at the garland in the logo, does it light up? Was this feature added this year, or haven't I noticed it in the past?

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