Rating changes for last rounds are temporarily rolled back. They will be returned soon. ×

AHMADUL's blog

Next Round.
By AHMADUL, history, 4 years ago, In English

There is no contest before 29th,April.Wouldn't it be nice to have a contest before "Educational Round-108"?

  • Vote: I like it
  • -40
  • Vote: I do not like it

»
4 years ago, # |
← Rev. 2   Vote: I like it +4 Vote: I do not like it

It's almost impossible to prepare the problemset for a round in 5 days.

You can do some virtual participation instead.

→ Reply
  • »
    »
    4 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Isn't it better to have a "Div-3" Round?

    → Reply
    • »
      »
      »
      4 years ago, # ^ |
        Vote: I like it +18 Vote: I do not like it

      Div-3 problems are easier to solve, but that does not mean they are easier for problem setters.

      At first, there is some work have to be done for every problem, even A+B. You'll have to write and test validator, checker, and the correct solution very carefully. Just writing them like solving a problem in contest won't work: for example it should be forbidden to use scanf in a validator or checker, as it invokes undefined behavior for bad inputs. And you'll have to find a group of people to test the problem. The construct of test input is tricky: randomly generated inputs aren't sufficient for many problems.

      And it's actually more difficult to make a problem suitable for less experienced participants, as the problem has to be creative and interesting (i. e. it shouldn't be a duplicate of a well-known problem, or the contest will become "Google contest": test who can use Google better :).

      → Reply
      • »
        »
        »
        »
        4 years ago, # ^ |
          Vote: I like it 0 Vote: I do not like it

        Some problems may be even much more difficult to set than solve, especially in constructive problems. If the model solution to a complicated problem is to output 1 and then 2 n-1 times, solutions will most likely be easy to code, but the checker may require advanced data structures and algorithms for efficiency.

        → Reply
»
4 years ago, # |
  Vote: I like it +16 Vote: I do not like it

Yes. It'd be very nice indeed. Would you consider authoring a Div. 10 round for us?

→ Reply