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10 lines
117 B
10 lines
117 B
5 years ago
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fib(0, 0).
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fib(1, 1).
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fib(N, F) :-
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N > 1,
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N1 is N-1,
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N2 is N-2,
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fib(N1, F1),
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fib(N2, F2),
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F is (F1+F2).
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