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ortools-clone/examples/flatzinc/exact_cover_dlx.fzn

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MiniZinc

predicate fzn_all_different_int(array [int] of var int: x);
predicate count(array [int] of var int: x, var int: y, var int: c);
predicate fixed_fzn_cumulative(array [int] of var int: s, array [int] of int: d, array [int] of int: r, int: b);
predicate global_cardinality(array [int] of var int: x, array [int] of int: cover, array [int] of var int: counts);
predicate maximum_int(var int: m, array [int] of var int: x);
predicate minimum_int(var int: m, array [int] of var int: x);
predicate sliding_sum(int: low, int: up, int: seq, array [int] of var int: vs);
predicate sort(array [int] of var int: x, array [int] of var int: y);
predicate table_bool(array [int] of var bool: x, array [int, int] of bool: t);
predicate table_int(array [int] of var int: x, array [int, int] of int: t);
predicate var_fzn_cumulative(array [int] of var int: s, array [int] of int: d, array [int] of int: r, var int: b);
array [1..6] of set of int: s = [{1, 4, 7}, {1, 4}, {4, 5, 7}, {3, 5, 6}, {2, 3, 6, 7}, {2, 7}];
array [1..6] of var 0..1: x :: output_array([1..6]);
constraint int_lin_eq([1, 1], [x[1], x[2]], 1);
constraint int_lin_eq([1, 1], [x[3], x[4]], 1);
constraint int_lin_eq([1, 1], [x[4], x[5]], 1);
constraint int_lin_eq([1, 1], [x[5], x[6]], 1);
constraint int_lin_eq([1, 1, 1], [x[1], x[2], x[3]], 1);
constraint int_lin_eq([1, 1, 1, 1], [x[1], x[3], x[5], x[6]], 1);
solve satisfy;