8 lines
203 B
Text
8 lines
203 B
Text
def nth_fib(n):
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# input: [f(i-2), f(i-1), countdown]
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def fib: (.[0] + .[1]) as $sum
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| .[2] as $n
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| if ($n <= 0) then $sum
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else [ .[1], $sum, $n - 1 ]
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| fib end;
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[-1, 1, n] | fib;
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