[gecode-users] Sets difference

[Guido Tack]

Mauricio Toro wrote:

> I get all the solutions (1,2,..5), (1,2,3...5), (1...5),  
> (1,2,3,4,5), but
> I just want the solutions without "..", in this case (1,2,3,4,5).

Let me ask again, please:  Does the solver really output these  
different representations of the same set??  I mean, do you just call  
Gecode's output function that writes a SetVar to an ostream, and that  
outputs sometimes (1,2,...,5) and sometimes (1,2,3,4,5)??

> is there a way to say that?
> If I use iterators, then I will get (1,2,3,4,5) many times.

Well, that is a problem in your constraint model then.  If your model  
allows many different solutions where that particular set has the same  
value, then that's what the solver will return.  As I don't know your  
model, it's hard to tell what's wrong with it.

Guido

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