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Predicate global_cardinality/2 |
:- use_module(library(clpfd)).
global_cardinality(Vs, Pairs, [])
. See global_cardinality/3.
Example:
?- Vs = [_,_,_], global_cardinality(Vs, [1-2,3-_]), label(Vs). Vs = [1, 1, 3] ; Vs = [1, 3, 1] ; Vs = [3, 1, 1].