Created
January 3, 2013 16:43
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| % Das Codewort besteht aus 5 Buchstaben. | |
| % (swi-prolog) | |
| letter(a). letter(b). letter(c). letter(d). letter(e). letter(f). | |
| letter(g). letter(h). letter(i). letter(j). letter(k). letter(l). | |
| letter(m). letter(n). letter(o). letter(p). letter(q). letter(r). | |
| letter(s). letter(t). letter(u). letter(v). letter(w). letter(x). | |
| letter(y). letter(z). | |
| code(Xs) :- | |
| Xs = [X1, X2, X3, X4, X5], | |
| letter(X1), | |
| letter(X2), | |
| letter(X3), | |
| letter(X4), | |
| letter(X5), | |
| clue(Xs, [b, i, r, n, e], 2, 1), % BIRNE enthält 2 Buchstaben des Codeworts, davon einen an der richtigen Position. | |
| clue(Xs, [f, a, h, r, t], 2, 1), % FAHRT enthält 2 Buchstaben des Codeworts, davon einen an der richtigen Position. | |
| clue(Xs, [g, r, u, b, e], 3, 0), % GRUBE enthält 3 Buchstaben des Codeworts, keinen an der richtigen Position. | |
| clue(Xs, [d, r, a, n, g], 2, 0), % DRANG enthält 2 Buchstaben des Codeworts, keinen an der richtigen Position. | |
| clue(Xs, [g, o, t, i, k], 2, 0), % GOTIK enthält 2 Buchstaben des Codeworts, keinen an der richtigen Position. | |
| clue(Xs, [k, a, l, i, f], 2, 0), % KALIF enthält 2 Buchstaben des Codeworts, keinen an der richtigen Position. | |
| clue(Xs, [k, u, r, v, e], 2, 0). % KURVE enthält 2 Buchstaben des Codeworts, keinen an der richtigen Position. | |
| clue(Xs, Letters, Anzahl, AnRichtigerPosition) :- | |
| enthaelt(Xs, Letters, Anzahl), | |
| enthaeltAnRichtigerPosition(Xs, Letters, AnRichtigerPosition). | |
| enthaelt(Xs, Letters, Anzahl) :- | |
| intersection(Letters, Xs, Intersection), | |
| length(Intersection, Anzahl). | |
| enthaeltAnRichtigerPosition([X | Xs], [Letter | Letters], Anzahl) :- | |
| X = Letter, | |
| Anzahl1 is Anzahl - 1, | |
| enthaeltAnRichtigerPosition(Xs, Letters, Anzahl1). | |
| enthaeltAnRichtigerPosition([X | Xs], [Letter | Letters], Anzahl) :- | |
| X \= Letter, | |
| enthaeltAnRichtigerPosition(Xs, Letters, Anzahl). | |
| enthaeltAnRichtigerPosition([], [], 0). |
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| ?- code(Xs). | |
| Xs = [f, i, g, u, r] ; | |
| false. |
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