It was possible to solve only B, C or D to qualify. That is to solve
one of three problems which is similar to previous qualification
rounds.

Yet A was added and that allows you to have a chance to get 20 extra
points, and I think overall it was easier to qualify than in the past.
In fact, you only needed the small inputs in A,B and C to pass and it
was overall very doable. A-small can be done with slow simulation and
C-small can be done by bruteforcing the subset to give to the little
brother (and give the complement to the other)

On 8 mayo, 09:04, Khalil <[email protected]> wrote:
> You should never risk such a thing.
> The points for the large input are not confirmed till end of the round

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