9 lines
168 B
Text
9 lines
168 B
Text
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(defun fibonacci (x)
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(defun fib (a b n)
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(if (= n 2)
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b
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(fib b (+ a b) (- n 1)) ) )
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(if (< x 2)
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x
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(fib 1 1 x) ) )
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