8 lines
122 B
Plaintext
8 lines
122 B
Plaintext
#show in/2.
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{in(1..n, 1..r)}.
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covered(I) :- in(I, S).
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:- I = 1..n, not covered(I).
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:- in(I, S), in(J, S), in(I + J, S).
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