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2016 Update

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Tina Müller 2016-12-05 22:15:40 +01:00
parent 948b86eafa
commit dcf5d15da3
7965 changed files with 139854 additions and 31002 deletions
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16
Task/Prime-decomposition/Prolog/prime-decomposition-3.pro Normal file
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factors( N, FS):-
factors2( N, FS).
factors2( N, FS):-
( N < 2 -> FS = []
; 4 > N -> FS = [N]
; 0 is N rem 2 -> FS = [K|FS2], N2 is N div 2, factors2( N2, FS2)
; factors( N, 3, FS)
).
factors( N, K, FS):-
( N < 2 -> FS = []
; K*K > N -> FS = [N]
; 0 is N rem K -> FS = [K|FS2], N2 is N div K, factors( N2, K, FS2)
; K2 is K+2, factors( N, K2, FS)
).