29 lines
990 B
MiniZinc
29 lines
990 B
MiniZinc
include "lex_chain_lesseq.mzn";
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/** @group globals.lexicographic
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Requires that the columns of matrix \a a are lexicographically sorted,
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non-increasing.
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*/
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predicate lex_chain_greatereq(array[int, int] of var bool: a) =
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if 1>=card(index_set_2of2(a)) then true
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else lex_chain_lesseq(
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array2d( index_set_1of2(a), index_set_2of2(a),
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[a[i, max(index_set_2of2(a)) - j + min(index_set_2of2(a))] |
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i in index_set_1of2(a), j in index_set_2of2(a)]
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)
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) endif;
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/** @group globals.lexicographic
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Requires that the columns of matrix \a a are lexicographically sorted,
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non-increasing.
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*/
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predicate lex_chain_greatereq(array[int, int] of var int: a) =
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if 1>=card(index_set_2of2(a)) then true
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else lex_chain_lesseq(
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array2d( index_set_1of2(a), index_set_2of2(a),
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[a[i, max(index_set_2of2(a)) - j + min(index_set_2of2(a))] |
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i in index_set_1of2(a), j in index_set_2of2(a)]
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)
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) endif;
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