Jip J. Dekker
f2a1c4e389
git-subtree-dir: software/mza git-subtree-split: f970a59b177c13ca3dd8aaef8cc6681d83b7e813
17 lines
881 B
MiniZinc
17 lines
881 B
MiniZinc
predicate fzn_diffn_k_reif(array[int,int] of var int: box_posn,
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array[int,int] of var int: box_size, var bool: b) =
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let { set of int: DIMS= index_set_2of2(box_posn) } in
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b <-> forall(b1, b2 in index_set_1of2(box_posn) where b1 < b2)
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(fzn_diffn_nonoverlap_k_for_reif([ box_posn[b1,j] | j in DIMS ],
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[ box_size[b1,j] | j in DIMS ],
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[ box_posn[b2,j] | j in DIMS ],
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[ box_size[b2,j] | j in DIMS ] )
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);
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predicate fzn_diffn_nonoverlap_k_for_reif(array[int] of var int: x1,
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array[int] of var int: w1,
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array[int] of var int: x2,
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array[int] of var int: w2) =
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exists(j in index_set(x1))
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(x1[j] + w1[j] <= x2[j] \/ x2[j] + w2[j] <= x1[j]);
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