Re: [Choco-users] maximize/minimize

[coletta <co...@li...>]

Le lun, 25/10/2004 =E0 14:08 +0200, Hadrien Cambazard a =E9crit :

> The api concerning minization and maximization in not yet available on =
the
> Problem object. However, you can look at the following code which give =
you
> an example of minimization. You only need to use the Solver object and
> specify a couple of options :
>=20
> public static void main(String[] args) {
>     Problem pb =3D new Problem();
>     IntVar fctObj =3D pb.makeBoundIntVar("objectif",-10,1000);
>     IntVar v1 =3D pb.makeEnumIntVar("v1",1,10);
>     IntVar v2 =3D pb.makeEnumIntVar("v2",-3,10);
>     IntVar v3 =3D pb.makeEnumIntVar("v3",1,10);
>=20
>     pb.post(pb.eq(pb.sum(new IntVar[]{v1,v2,v3}),fctObj));
>=20
>=20
>     Solver solver =3D pb.getSolver();
>     solver.setDoMaximize(false);
>     solver.setObjective(fctObj);
>     solver.setRestart(false);
>     solver.setFirstSolution(true);
>     solver.generateSearchSolver(pb);
>     solver.launch();
>   }

Hello guys,

  I'm sorry, but i don't seem to work :-(
  By selecting another Value Ordering, for instance:
inserting the line "solver.setValIterator(new DecreasingDomain());",
i obtain:

$ java Test
... solution with cost objectif:30
Pb[4 vars, 1 cons]
objectif[30, 30]
v1{10}
v2{10}
v3{10}

Do i miss something ?

--
R=E9mi=20