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from itertools import combinationsfrom z3 import *
solver = Solver()
Colours = Datatype("Colours")Colours.declare("RED")Colours.declare("BLUE")Colours.declare("GREEN")Colours.declare("YELLOW")
Colour = Colours.create()f = Function('f', IntSort(), Colour)
variables = list()for i in range(0,5): variables.append(Int(i)) solver.add(0 <= variables[-1]) solver.add(variables[-1] <= 5)
solver.add(Distinct(variables))
"""
|cell 1|cell 2|cell 3|cell 4|cell 5|
"""
# neighbouring cells needs to be coloured differently
result = solver.check()if result == sat: print(solver.model())
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