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MiniZinc

include "fzn_subcircuit.mzn";
include "fzn_subcircuit_reif.mzn";
/** @group globals
Constrains the elements of \a x to define a subcircuit where \a x[\p i] = \p j
means that \p j is the successor of \p i and \a x[\p i] = \p i means that \p i
is not in the circuit.
*/
predicate subcircuit(array[int] of var int: x) =
fzn_subcircuit(x);
predicate subcircuit_reif(array[int] of var int: x, var bool: b) =
fzn_subcircuit_reif(x, b);
%-----------------------------------------------------------------------------%