9 lines
351 B
MiniZinc
9 lines
351 B
MiniZinc
predicate fzn_knapsack_reif(array[int] of int: w, array[int] of int:p,
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array[int] of var int:x, var int: W, var int: P, var bool: b) =
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b <-> (
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forall (i in index_set(x)) (x[i] >= 0) /\
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W >= 0 /\ P >= 0 /\
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P = sum(i in index_set(p)) (x[i]*p[i]) /\
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W = sum(i in index_set(w)) (x[i]*w[i])
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);
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