csacademy's blog

Interactive Problems
By csacademy, 7 years ago, In English

Hello Codeforces!

During the past few weeks we've been working on modifying the jailer system to support interactive problems. You can read more about them in this blog post.

Right now we have 3 basic problems in the archive, but we are concerned the system might still have some bugs. So we'd like to ask for your help. We are particularly interested in:

  • Wrong solutions that get an OK verdict
  • Correct solutions that get a WA verdict (or TLE, MLE, RE).

We'd like to go through these checks as fast as possible, because we have a surprise prepared for the next contest.

  • Vote: I like it
  • +102
  • Vote: I do not like it

Comments Comments (11)
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7 years ago, # |
← Rev. 2   Vote: I like it +22 Vote: I do not like it

Whoa, you really make progress. If I'm not mistaken, so far Codeforces was the only platform with interactive problems and (almost) regular contests. Other platforms, which exist for years, haven't implemented it yet. Nice job.

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

    UVa judge has this functionality also. But with just a few problems. Link

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

      But it does not hold contests, right?

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        7 years ago, # ^ |
          Vote: I like it -72 Vote: I do not like it

        No, it also holds contests. Now don't say "but it is not regular, right?" as you have enough e-penis now.

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

          Where is a calendar with their contests? I can't see anything on their website.

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            7 years ago, # ^ |
            ← Rev. 2   Vote: I like it -27 Vote: I do not like it

            can't you see "contest" label? An image in case you still missed:

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

              I meant that the "coming contests" page is empty.

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        7 years ago, # ^ |
          Vote: I like it +23 Vote: I do not like it

        That is true in some way. There have been really few contests in the last years. I don't know how someone can hold a contest there or even if there is an specification in how the problems (input, output, solution, validators, etc) must be prepared, which is sad since I began in competitive programming there.

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    7 years ago, # ^ |
      Vote: I like it +29 Vote: I do not like it

    Codechef also has interactive problems in Long Contests.

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    7 years ago, # ^ |
      Vote: I like it +16 Vote: I do not like it

    You forgot about yandex contest and ejudge

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

Cool. Waiting for some nice stuffs :)

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