subset-oi.pl

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description
owner Johannes Waldmann
uploaded 2017-08-17 03:45:17.0
disk size 358 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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% Author: Thomas Stroeder
% terminating

%query: subset(o,i).
subset(X,Y) :- subsetchecked(X,[],Y).

subsetchecked([],_,_).
subsetchecked([X|Xs],Ys,Zs) :- member(X,Zs), not_member(X,Ys), subsetchecked(Xs,[X|Ys],Zs).

member(X,[X|_]).
member(X,[_|Xs]) :- member(X,Xs).

not_member(X,Y) :- member(X,Y),!,failure(a).
not_member(_,_).

failure(b).
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