How to add a constraint ALLDifferent contains the indexes of elements in IntVar using java choco3 API?
I want that every variable takes only one value from the list table, for exemple here n1
takes 3, n2
takes 3, n3
takes 4, we have n1=n2
, thats not a problem, what i want is n1.index(list loads) != n2.index !=n3.index
Model model = new Model("exemple");
int loads = new int{4, 3, 3};
IntVar n1 = model.intVar("n1", loads);
IntVar n2 = model.intVar("n2", loads);
IntVar n3 = model.intVar("n3", loads);
//Contsraints :
model.allDifferent(n1,n2,n3).post();
java choco
add a comment |
I want that every variable takes only one value from the list table, for exemple here n1
takes 3, n2
takes 3, n3
takes 4, we have n1=n2
, thats not a problem, what i want is n1.index(list loads) != n2.index !=n3.index
Model model = new Model("exemple");
int loads = new int{4, 3, 3};
IntVar n1 = model.intVar("n1", loads);
IntVar n2 = model.intVar("n2", loads);
IntVar n3 = model.intVar("n3", loads);
//Contsraints :
model.allDifferent(n1,n2,n3).post();
java choco
1
Couldn't you just create anIntVar loadIndices = model.intVarArray(3, 0, 2)
, post anallDifferent
constraint onloadIndices
, and retrieve theloads
during solving with theelement
constraint?
– Philip Harding
Jan 6 at 22:10
add a comment |
I want that every variable takes only one value from the list table, for exemple here n1
takes 3, n2
takes 3, n3
takes 4, we have n1=n2
, thats not a problem, what i want is n1.index(list loads) != n2.index !=n3.index
Model model = new Model("exemple");
int loads = new int{4, 3, 3};
IntVar n1 = model.intVar("n1", loads);
IntVar n2 = model.intVar("n2", loads);
IntVar n3 = model.intVar("n3", loads);
//Contsraints :
model.allDifferent(n1,n2,n3).post();
java choco
I want that every variable takes only one value from the list table, for exemple here n1
takes 3, n2
takes 3, n3
takes 4, we have n1=n2
, thats not a problem, what i want is n1.index(list loads) != n2.index !=n3.index
Model model = new Model("exemple");
int loads = new int{4, 3, 3};
IntVar n1 = model.intVar("n1", loads);
IntVar n2 = model.intVar("n2", loads);
IntVar n3 = model.intVar("n3", loads);
//Contsraints :
model.allDifferent(n1,n2,n3).post();
java choco
java choco
edited Jan 2 at 18:56


Edgar Ramírez Mondragón
1,5812923
1,5812923
asked Jan 2 at 18:41
Stef_DevStef_Dev
13
13
1
Couldn't you just create anIntVar loadIndices = model.intVarArray(3, 0, 2)
, post anallDifferent
constraint onloadIndices
, and retrieve theloads
during solving with theelement
constraint?
– Philip Harding
Jan 6 at 22:10
add a comment |
1
Couldn't you just create anIntVar loadIndices = model.intVarArray(3, 0, 2)
, post anallDifferent
constraint onloadIndices
, and retrieve theloads
during solving with theelement
constraint?
– Philip Harding
Jan 6 at 22:10
1
1
Couldn't you just create an
IntVar loadIndices = model.intVarArray(3, 0, 2)
, post an allDifferent
constraint on loadIndices
, and retrieve the loads
during solving with the element
constraint?– Philip Harding
Jan 6 at 22:10
Couldn't you just create an
IntVar loadIndices = model.intVarArray(3, 0, 2)
, post an allDifferent
constraint on loadIndices
, and retrieve the loads
during solving with the element
constraint?– Philip Harding
Jan 6 at 22:10
add a comment |
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1
Couldn't you just create an
IntVar loadIndices = model.intVarArray(3, 0, 2)
, post anallDifferent
constraint onloadIndices
, and retrieve theloads
during solving with theelement
constraint?– Philip Harding
Jan 6 at 22:10