2014-07-02 48 views
1

試圖用prolog解決這個難題任務,並且遇到了一些問題。prolog在增加堆棧大小時得到語法錯誤

1002 Stack Overflow. Re-configure with Setup if necessary. 

所以,我試圖增加安裝程序中的堆棧大小,並再次運行程序。 但它會導致另一個錯誤:Syntax error on line... 錯誤行在謂詞中與運算符「not」一致。

這裏是我的代碼:

domains 

age = integer 
childname,ffood,fear = string 
child = child(childname,age,ffood,fear) 
children = child* 

predicates 
solve 
name(child,childname) 
fear(child,fear) 
age(child,age) 
ffood(child,ffood) 
keys(children) 
solution(children) 
elder(child) 
member(children,child) 
structure(children) 

clauses 

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

name(child(A,_,_,_),A). 
age(child(_,A,_,_),A). 
ffood(child(_,_,A,_),A). 
fear(child(_,_,_,A),A). 

structure([child("Dima",_,_,_),child("Kate",_,_,_),child("Misha",_,_,_),child("Sveta",_,_,_),child("Ura",_,_,_)]). 

elder(child(_,A,_,_)):-A=7;A=8. 

solve:-structure(Children),keys(Children),solution(Children). 

keys(Struct):- 
member(Struct,child(_,4,_,_)), 
member(Struct,child(_,5,_,_)), 
member(Struct,child(_,6,_,_), 
member(Struct,child(_,7,_,_), 
member(Struct,child(_,8,_,_)), 
member(Struct,child(_,_,"Banana",_), 
member(Struct,child(_,_,"Icecream",_), 
member(Struct,child(_,_,"Pizza",_), 
member(Struct,child(_,_,"Pasta",_), 
member(Struct,child(_,_,"Chocolate",_), 
member(Struct,child(_,_,_,"Thunderstorm"), 
member(Struct,child(_,_,_,"Spiders"), 
member(Struct,child(_,_,_,"Ghosts"), 
member(Struct,child(_,_,_,"Dogs"), 
member(Struct,child(_,_,_,"Darkness"), 
member(Struct,Child1), 
name(Child1,"Kate"), 
elder(Child1), 
not(fear(Child1,"Darkness")), 
not(ffood(Child1,"Chocolate")), 
member(Struct,Child2), 
name(Child2,"Sveta"), 
elder(Child2), 
not(fear(Child2,"Darkness")), 
not(ffood(Child2,"Chocolate")), 
ffood(Child2,"Pizza"), 
not(fear(Child2,"Spiders")), 
member(Struct,Child3), 
age(Child3,5), 
fear(Child3,"Ghosts"), 
member(Struct,Child4), 
age(Child4,6), 
fear(Child4,"Thunderstorm"), 
not(ffood(Child4,"Chocolate")), 
not(ffood(Child4,"Pasta")), 
member(Struct,Child5), 
age(Child5,4), 
ffood(Child5,"Banana"), 
member(Struct,Child6), 
age(Child6,8), 
not(fear(Child6,"Dogs")), 
member(Struct,Child7), 
name(Child7,"Dima"), 
not(age(Child7,5)), 
not(fear(Child7,"Darkness")), 
not(fear(Child7,"Spiders")), 
not(ffood(Child7,"Banana")), 
member(Struct,Child8), 
name(Child8,"Misha"), 
not(fear(Child8,"Darkness")), 
not(fear(Child8,"Spiders")), 
not(ffood(Child8,"Banana")). 


solution (Children):- 
    write ("Solve:"), write (Children). 

goal 

solve. 

發現了奇怪的這段序言行爲...也許有人有同樣的問題?

回答

0

我試圖重新與SWI-Prolog的代碼:

keys(Struct):- 
    member(Struct,child(_,4,_,_)), 
    member(Struct,child(_,5,_,_)), 
    member(Struct,child(_,6,_,_), 
      member(Struct,child(_,7,_,_), 
       member(Struct,child(_,8,_,_)), 
       member(Struct,child(_,_,"Banana",_), 
... 

似乎你錯過了明顯的修正後的括號內的一些... ,我得到

?- solve. 
Solve:[child(Dima,6,Icecream,Thunderstorm),child(Kate,8,Pasta,Spiders),child(Misha,5,Chocolate,Ghosts),child(Sveta,7,Pizza,Dogs),child(Ura,4,Banana,Darkness)] 
true . 
+0

感謝ü這麼多! –