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September 2017 Update

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Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions
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8
Task/Greatest-common-divisor/Clojure/greatest-common-divisor-3.clj Normal file
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(defn stein-gcd [a b]
(cond
(zero? a) b
(zero? b) a
(and (even? a) (even? b)) (* 2 (stein-gcd (unsigned-bit-shift-right a 1) (unsigned-bit-shift-right b 1)))
(and (even? a) (odd? b)) (recur (unsigned-bit-shift-right a 1) b)
(and (odd? a) (even? b)) (recur a (unsigned-bit-shift-right b 1))
(and (odd? a) (odd? b)) (recur (unsigned-bit-shift-right (Math/abs (- a b)) 1) (min a b))))