dekker.one / on-restart-benchmarks
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on-restart-benchmarks / software / mza / share / minizinc / std / fzn_alldifferent_except_0_reif.mzn
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1predicate fzn_alldifferent_except_0_reif(array[int] of var int: vs, var bool: b) = 2 b <-> forall(i, j in index_set(vs) where i < j) ( 3 (vs[i] != 0 /\ vs[j] != 0) -> vs[i] != vs[j] 4 );