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July 23, 2020 11:12
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Learn Prolog Now! Exercise 2.4
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% crossword | |
word(astante,a,s,t,a,n,t,e). | |
word(astoria,a,s,t,o,r,i,a). | |
word(baratto,b,a,r,a,t,t,o). | |
word(cobalto,c,o,b,a,l,t,o). | |
word(pistola,p,i,s,t,o,l,a). | |
word(statale,s,t,a,t,a,l,e). | |
h1(H1,V1,V2,V3):- | |
word(H1,_,A,_,B,_,C,_), | |
word(V1,_,A,_,_,_,_,_), | |
word(V2,_,B,_,_,_,_,_), | |
word(V3,_,C,_,_,_,_,_), | |
H1\=V1. | |
h2(H2,V1,V2,V3):- | |
word(H2,_,A,_,B,_,C,_), | |
word(V1,_,_,_,A,_,_,_), | |
word(V2,_,_,_,B,_,_,_), | |
word(V3,_,_,_,C,_,_,_). | |
h3(H3,V1,V2,V3):- | |
word(H3,_,A,_,B,_,C,_), | |
word(V1,_,_,_,_,_,A,_), | |
word(V2,_,_,_,_,_,B,_), | |
word(V3,_,_,_,_,_,C,_). | |
crossword(H1,H2,H3,V1,V2,V3):- | |
h1(H1,V1,V2,V3), | |
h2(H2,V1,V2,V3), | |
h3(H3,V1,V2,V3). | |
% H1 = astante | |
% H2 = cobalto | |
% H3 = pistola | |
% V1 = astoria | |
% V2 = baratto | |
% V3 = statale | |
% H1 = astoria | |
% H2 = baratto | |
% H3 = statale | |
% V1 = astante | |
% V2 = cobalto | |
% V3 = pistola |
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