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ARM Club 3
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!BinPro330_progs_algraph
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1995-01-23
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298 b
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31 lines
p:-[algraph].
path(X,X,[X]).
path(X,Z,[X|Xs]):-c(X,Y),path(Y,Z,Xs).
% data
go(Xs):-
(c(1,X1):-c1(X1)) -:
(c(2,X2):-c2(X2)) -:
(c(3,X3):-c3(X3)) -:
(c(4,X4):-c4(X4)) -:
path(1,5,Xs).
c1(2).
c1(3).
c2(1).
c2(4).
c3(1).
c3(5).
c4(1).
c4(5).
% test
go:-go(Xs),write(Xs),nl,fail.