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Task/ABC-Problem/Prolog/abc-problem.pro

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+abc_problem :-
+	maplist(abc_problem, ['', 'A', bark, bOOk, treAT, 'COmmon', sQuaD, 'CONFUSE']).
+
+
+abc_problem(Word) :-
+	L = [[b,o],[x,k],[d,q],[c,p],[n,a],[g,t],[r,e],[t,g],[q,d],[f,s],
+	     [j,w],[h,u],[v,i],[a,n],[o,b],[e,r],[f,s],[l,y],[p,c],[z,m]],
+
+	(   abc_problem(L, Word)
+	->  format('~w OK~n', [Word])
+	;   format('~w KO~n', [Word])).
+
+abc_problem(L, Word) :-
+	atom_chars(Word, C_Words),
+	maplist(downcase_atom, C_Words, D_Words),
+	can_makeword(L, D_Words).
+
+can_makeword(_L, []).
+
+can_makeword(L, [H | T]) :-
+	(   select([H, _], L, L1); select([_, H], L, L1)),
+	can_makeword(L1, T).