predicate 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_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_cumulative(array [int] of var int: s, array [int] of int: d, array [int] of int: r, var int: b); array [1..36] of int: connections = [0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0]; array [1..6] of var 1..4: country :: output_array([1..6]); constraint int_ne(country[1], country[3]); constraint int_ne(country[1], country[4]); constraint int_ne(country[1], country[5]); constraint int_ne(country[1], country[6]); constraint int_ne(country[2], country[4]); constraint int_ne(country[3], country[4]); constraint int_ne(country[3], country[5]); constraint int_ne(country[4], country[5]); constraint int_ne(country[4], country[6]); solve satisfy;