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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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34
Task/Miller-Rabin-primality-test/Smalltalk/miller-rabin-primality-test-1.st Normal file
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Integer extend [
millerRabinTest: kl [ |k| k := kl.
self <= 3
ifTrue: [ ^true ]
ifFalse: [
(self even)
ifTrue: [ ^false ]
ifFalse: [ |d s|
d := self - 1.
s := 0.
[ (d rem: 2) == 0 ]
whileTrue: [
d := d / 2.
s := s + 1.
].
[ k:=k-1. k >= 0 ]
whileTrue: [ |a x r|
a := Random between: 2 and: (self - 2).
x := (a raisedTo: d) rem: self.
( x = 1 )
ifFalse: [ |r|
r := -1.
[ r := r + 1. (r < s) & (x ~= (self - 1)) ]
whileTrue: [
x := (x raisedTo: 2) rem: self
].
( x ~= (self - 1) ) ifTrue: [ ^false ]
]
].
^true
]
]
]
].

3
Task/Miller-Rabin-primality-test/Smalltalk/miller-rabin-primality-test-2.st Normal file
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1 to: 1000 do: [ :n |
(n millerRabinTest: 10) ifTrue: [ n printNl ]
].