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40 lines
1.4 KiB
Python
40 lines
1.4 KiB
Python
#!/usr/bin/python
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#
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# http://home.chello.no/~dudley/
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#
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from constraint import *
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import sys
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STUDENTDESKS = [[ 0, 1, 0, 0, 0, 0],
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[ 0, 2, 3, 4, 5, 6],
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[ 0, 7, 8, 9, 10, 0],
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[ 0, 11, 12, 13, 14, 0],
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[ 15, 16, 17, 18, 19, 0],
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[ 0, 0, 0, 0, 20, 0]]
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def main():
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problem = Problem()
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problem.addVariables(range(1,21), ["A", "B", "C", "D", "E"])
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problem.addConstraint(SomeInSetConstraint(["A"], 4, True))
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problem.addConstraint(SomeInSetConstraint(["B"], 4, True))
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problem.addConstraint(SomeInSetConstraint(["C"], 4, True))
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problem.addConstraint(SomeInSetConstraint(["D"], 4, True))
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problem.addConstraint(SomeInSetConstraint(["E"], 4, True))
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for row in range(len(STUDENTDESKS)-1):
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for col in range(len(STUDENTDESKS[row])-1):
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lst = [STUDENTDESKS[row][col], STUDENTDESKS[row][col+1],
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STUDENTDESKS[row+1][col], STUDENTDESKS[row+1][col+1]]
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lst = [x for x in lst if x]
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problem.addConstraint(AllDifferentConstraint(), lst)
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showSolution(problem.getSolution())
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def showSolution(solution):
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for row in range(len(STUDENTDESKS)):
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for col in range(len(STUDENTDESKS[row])):
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id = STUDENTDESKS[row][col]
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sys.stdout.write(" %s" % (id and solution[id] or " "))
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sys.stdout.write("\n")
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if __name__ == "__main__":
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main()
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