我想界定一个在P是X权力时即属实的上游权力。 如果工作是不是P 。
既然你使用SICStus Prolog,你可以使用图书馆的次数(+Sequence, ?SubSequence),“当SubSequence is a subsequence of Sequence, but may be Sequence”,(摘自手册
如果不允许你使用图书馆,那么你可以执行(<>gusbro)。 ?- setof(X, subseq0([a,b,c],X), Xs).
Xs = [[],[a],[a,b],[a,b,c],[a,c],[b],[b,c],[c]]
powerset([], []).
powerset([H|T], P) :- powerset(T,P).
powerset([H|T], [H|P]) :- powerset(T,P).
I ve read about it in a book but it wasn t explained at all. I also never saw it in a program. Is part of Prolog syntax? What s it for? Do you use it?
I am trying to learn a little bit about swi-prolog (beyond the basic, useless programs). Can anyone explain (perhaps in pseudocode) what this sudoku solver and the related functions are doing? If ...
First off let me state that this is part of a class exercise given as homework. But, the entire assignment is much more involved than the subject of this question. So.. I am searching through two ...
Q. Given [1,2,3] in Prolog get back [6,5,3] by reverse accumulation I have the start code: accumalate([H],[H]). accumalate([H1 | H2], [Hnew, H2]), Hnew is H1 + H2. .... I am looking for ...
I m trying to write a function that will test to see if the word hello is contained in a list. If it is contained, i don t want it to say "true", i want it to say : "yes, the word hello is contained ...
How to determine whether two list have same element in prolog? If i have two list A and B, i want to know whether they have the same element.
I have a question I would like to ask you something about a code snippet: insert_pq(State, [], [State]) :- !. insert_pq(State, [H|Tail], [State, H|Tail]) :- precedes(State, H). insert_pq(State, [...
I know how to iterate over lists in Prolog to find the maximum, but what if each thing is a separate clause? For example if I had a bunch of felines and their ages, how would I find the oldest kitty? ...
