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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Fibonacci-sequence/Raku/fibonacci-sequence-1.raku Normal file
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constant @fib = 0, 1, *+* ... *;

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Task/Fibonacci-sequence/Raku/fibonacci-sequence-2.raku Normal file
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sub fib ($n) { @fib[$n] }

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Task/Fibonacci-sequence/Raku/fibonacci-sequence-3.raku Normal file
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constant @neg-fib = 0, 1, *-* ... *;
sub fib ($n) { $n >= 0 ?? @fib[$n] !! @neg-fib[-$n] }

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Task/Fibonacci-sequence/Raku/fibonacci-sequence-4.raku Normal file
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sub fib (Int $n --> Int) {
$n > 1 or return $n;
my ($prev, $this) = 0, 1;
($prev, $this) = $this, $this + $prev for 1 ..^ $n;
return $this;
}

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Task/Fibonacci-sequence/Raku/fibonacci-sequence-5.raku Normal file
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proto fib (Int $n --> Int) {*}
multi fib (0) { 0 }
multi fib (1) { 1 }
multi fib ($n) { fib($n - 1) + fib($n - 2) }