That's a good point about not being able to test your new solution on the
same input that you know you got right, Dmitriy. A few other thoughts:
- I don't know whether the UI makes this clear -- note to team, hopefully
there's a really clear indication that you still have points from previous
submissions -- but *you can't lose points you have earned on a visible
dataset*, no matter what you submit later.
- I agree that it isn't without penalty, but I don't think 4 penalty
minutes is a very significant cost. I also don't think there's anything
wrong with that cost being present.
- When writing an analysis, it's often helpful to first consider a simpler
version of a problem before you consider a more complex version. I believe
that's what they're doing here.
- Although there are a couple of things that make it less appealing -- lack
of ability to test on a Google-generated dataset, and the extra 4 penalty
minutes -- it's still totally reasonable to code up a solution that solves
the Visible and not the Invisible set. For example, what if you don't know
*how* to solve the invisible one? Or, as we've discussed here, what if
you're planning on submitting the Invisible set later if you get a chance?
On Tue, Apr 10, 2018 at 1:21 PM Дмитрий Кузьминов <dmitry.kuzmi...@gmail.com>
> Bartholomew: there is another concern. Let's imagine that I've solved the
> Visible dataset, and I know for sure that this doesn't solve the Hidden
> one. I submit the solution, I get the positive verdict, and I start the
> better implementation. In the old platform I can always compare the results
> that the old (less effective) solution produces with the results that the
> better solution gives me, and that comes for free: I don't need to spend an
> attempt with a penalty. Now it is not free. Moreover, I even don't know
> which attempt will be taken to score my visible dataset (shall I submit my
> correct solution for the second time?).
> Today we've got a Qual Round analysis, and the analyst still assumes that
> old rules are valid. Let's regard the "Saving The Universe Again": as usual
> we have a clue that if we know that "Since there is at most one C
> instruction in this test set, we can solve the two cases independently"!
> Who cares now of the solutions that doesn't solve both datasets?
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