MikeMirzayanov's blog

Source Code Viewing
By MikeMirzayanov, 15 years ago, translation, In English
Hello to everyone.

The latest news - now you are able to see the source code of the solution. During the contest you can view your own solutions only, but when the contest is finished you can view the solutions of any other participant. The table with the solutions is available via the problemset page, the solutions there are sorted by the program length. Pay attention, please, that you are free to change the sorting criteria using the option at the bottom of the table. 
There is another principle that gives you the chance to view the source codes of solved (during the contest or practice) solutions only. Personally, I regard the principle "everyone sees everything" as more suitable for our regular contests.  Am I right?

When you run a contest within your private community, you'll be able to set up your own principle for viewing solutions (or to switch off this function at all). But this functionality is under construction now. 

Wish you high rating,
MikeMirzayanov

UPD. Standings page is improved. You may double-click into a table cell (or use Ctrl+click) to view the submissions history.
  • Vote: I like it
  • +14
  • Vote: I do not like it

Comments Comments (58)
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15 years ago, # |
  Vote: I like it 0 Vote: I do not like it
Shouldn't there also be a reverse sorting option (e.g. sorting by earliest time arrived)
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15 years ago, # |
  Vote: I like it +12 Vote: I do not like it
veryyyyyyyyy goooooooooooooood,
thanks
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15 years ago, # |
  Vote: I like it 0 Vote: I do not like it
When I stop my pointer on a submission on standing page, the language of that submission is shown. Can you do the same thing on rating page: the rank of that coder in that competition is shown. Thanks!!!
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14 years ago, # |
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it just shows the latest 40-50 submissions. not all..:(
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  • 14 years ago, # ^ |
      Vote: I like it +2 Vote: I do not like it
    Try double-clicking on cell in tables with results.
    For example, go to results of any contest and find ans person solved problem X you like. Double-click on cell of X colomn near contestant name. 
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13 years ago, # |
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can we see the solution of practice problems??
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  • 13 years ago, # ^ |
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    You can find all solutions of particular problem in final standings page of contest which contains this problem. On the top of page are solutions which were submitted in contest time, and below are solutions which were submitted in practice mode.
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13 years ago, # |
  Vote: I like it +1 Vote: I do not like it

I do not know how to use this on my mobile device (double click zooms in the page) :-(

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

i am unable to see some source codes.. it says "Problem Source is not available" here is one example: 1244730

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11 years ago, # |
← Rev. 3   Vote: I like it 0 Vote: I do not like it

Then what is hacking one's soln during the contest? How to do it?

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

    If you lock a particular problem after you've passed the pretest during a contest, you'll be able to view the source code of others who passed the pretests for that problem.

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

I can't see the submitted code of competitions like "2014-2015 ACM-ICPC East Central North America Regional Contest" and such past group contests. I can only see the past history of submissions when I double click the table cells. Are there some restrictions on this ?

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

    You can't watch submissions on problem in gym contests until you solve it.

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    4 weeks ago, # ^ |
      Vote: I like it -12 Vote: I do not like it

    SAME Problem Did you get any solutions?

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      29 hours ago, # ^ |
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      I also facing this issue too

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8 years ago, # |
  Vote: I like it -7 Vote: I do not like it

tried to see others submission for some problems from older contests but could not see any.Am i missing something/ this is a bug?

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7 years ago, # |
  Vote: I like it +39 Vote: I do not like it

Can we have an option (enabled in preferences probably) to see the line numbers and to provide links to specific line numbers in URLs?

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5 years ago, # |
  Vote: I like it -25 Vote: I do not like it

Where are the solutions to problems? Does every problem from a contest have a solution?

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    5 years ago, # ^ |
      Vote: I like it -14 Vote: I do not like it

    What ar u talking about?

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

      Sorry I'm new. For Educational Codeforces Round 67 (Rated for Div. 2), I was just wondering if they posted the solutions to the problems because I can't find it. If they haven't, do you know if they will or how long it will take?

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    5 years ago, # ^ |
    ← Rev. 2   Vote: I like it +19 Vote: I do not like it

    OMG, I hate necroposting so much.

    "The latest news — now you are able to see the source code of the solution."
    So many question marks above my head when reading this.

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

      oops. wheres the thread i should post in and y r u here?

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

How to sort the submissions of a particular question with respect to time?

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    5 years ago, # ^ |
      Vote: I like it +6 Vote: I do not like it

    On the "status" page for a given contest, use the filters on the right:

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2 months ago, # |
  Vote: I like it -7 Vote: I do not like it

I am seeing N/A when i try to see source code of other's. What can be the reason.

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2 months ago, # |
  Vote: I like it +3 Vote: I do not like it

I am seeing N/A when i try to access the source code of other’s , any solution for this?

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2 months ago, # |
  Vote: I like it +10 Vote: I do not like it

Indeed, I haven't lately been able to see any of the other users' submissions. Everything I see is "N/A" for source code, even for problems I have solved. Any solution to this very annoying issue? Thanks!

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7 weeks ago, # |
  Vote: I like it 0 Vote: I do not like it

For people not able to see other's solution, be patient it is a normal process and you will soon be able to see solutions.

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    7 weeks ago, # ^ |
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    Please explain further. I'm personally not talking about ongoing contests or contests that necessarly happened very very recently. There are also sources that I used to be able to see and am no more. Seems like something is off.

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      7 weeks ago, # ^ |
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      Exactly. I had the same problem too, tried different network as well as cellphone wireless from different provider in the U.S., none of them works. It started since more than a week ago. Friends in China or Canada reported not affected. It seems like some settings have been changed to no longer compatible to certain network.

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7 weeks ago, # |
  Vote: I like it 0 Vote: I do not like it

This is surely a good way to improve our programming skills. I support it at first. But I think founding a independent page and ask the users whether they want to join in the Code Disclosure Plan or not is also important. I advise that the manager should set up a standard of the code which can be shown to all the users.

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5 weeks ago, # |
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I can't see other people's code it shows me N/A

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    4 weeks ago, # ^ |
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    If your network connection is slow then it happens.

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      4 weeks ago, # ^ |
        Vote: I like it +22 Vote: I do not like it

      Did you see the "N/A" with a slow connection (i.e. you saw that exact message and it's not just that the submission window didn't open)?

      I throttled my network connection speed to simulate GPRS and it still doesn't happen. Then I logged in as an unrated alt account and it happened immediately, with a fast connection. And indeed, even the response from https://codeforces.net/data/submitSource contains "N/A" in the source field.

      I think that seeing "N/A" has nothing to do with your network connection. Instead, Codeforces simply doesn't show source code to unrated accounts. This is further corroborated by the fact that everyone who has complained in this thread is unrated (or was unrated at the time of complaining).

      And this is probably not a bug at all: source code viewing has probably been intentionally disabled for unrated accounts to reduce scraping.

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        4 weeks ago, # ^ |
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        iam a newbie — not unrated — and most of the time i get NA

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          4 weeks ago, # ^ |
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          Interesting, maybe it is something like 3 rated contests then. Or maybe there is a cap on the number of viewable submissions (if you say it happens "most of the time" and not always).

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            4 weeks ago, # ^ |
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            Lately codeforces servers are so slow handling "showing other people's submissions" I believe they should check what's up with the databases or the APIs anyway most likely there is something wrong with the backend !

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        4 weeks ago, # ^ |
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        Yeap, I tested and got the same

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