diff options
Diffstat (limited to 'prolog/problems/family_relations/cousin_2/common.py')
| -rw-r--r-- | prolog/problems/family_relations/cousin_2/common.py | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/prolog/problems/family_relations/cousin_2/common.py b/prolog/problems/family_relations/cousin_2/common.py new file mode 100644 index 0000000..9285a80 --- /dev/null +++ b/prolog/problems/family_relations/cousin_2/common.py @@ -0,0 +1,26 @@ +id = 99 +group = 'family_relations' +number = 6 +visible = True +facts = 'family_relations' + +solution = '''\ +sister99(X, Y) :- + parent(P, X), + parent(P, Y), + female(X), + X \== Y. + +brother99(X, Y) :- + parent(P, X), + parent(P, Y), + male(X), + X \== Y. + +cousin(X, Y) :- + parent(PX, X), + parent(PY, Y), + ( brother99(PX, PY) + ; + sister99(PX, PY) ). +''' |