exercise_length.pl

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description
owner Johannes Waldmann
uploaded 2017-08-17 03:45:08.0
disk size 255 Bytes
downloadable true
type
attribute value
name no_type
processor id 1
description this is the default benchmark type for rejected benchmarks and benchmarks that are not associated with a type.
owning community none
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%Source: http://colin.barker.pagesperso-orange.fr/sands.htm
%query:length(g,f).
/* length(Xs,L) is true if L is the length of the list Xs.                 */
length(Xs,L):-length(Xs,0,L).

length([],L,L).
length([X|Xs],L0,L):-L1 is L0+1, length(Xs,L1,L).
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