Everybody,
is somebody here who can help me in this small algorithm.
Why do I get
atom_concat/3: Type error: `atomic' expected, found `[g]'
atom_concat/3: Type error: `atomic' expected, found `[e]'
in the line where flatten1(...) is called with the list of a,b,c...
What's wrong with that... hmm? I found it in the Prolog book of Bratko,
excercise 3.11
I am using SWI-Prolog 5.6
Regards,
flatten1([Head|Tail], List) :-
flatten1(Head, FlatHead),
flatten1(Tail, FlatTail),
concat(FlatHead,FlatTail, List).
flatten1([], []).
flatten1(X, [X]).
:- flatten1([a,b,c,e,f,g], List),
write('Flat List:'), write(List).
:- flatten1([a,b,[c,e],f,g], List),
write('Flat List:'), write(List).
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