diff options
Diffstat (limited to 'prolog/problems/trees/membert_2/common.py')
| -rw-r--r-- | prolog/problems/trees/membert_2/common.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/prolog/problems/trees/membert_2/common.py b/prolog/problems/trees/membert_2/common.py new file mode 100644 index 0000000..177309f --- /dev/null +++ b/prolog/problems/trees/membert_2/common.py @@ -0,0 +1,18 @@ +id = 142 +group = 'trees' +number = 49 +visible = True +facts = None + +solution = '''\ +memb142(X, [X|_]). +memb142(X, [_|T]) :- + memb142(X, T). + +memberT(X, Tree) :- + Tree =.. [t, X|_]. +memberT(X, Tree) :- + Tree =.. [t, _|SubTrees], + memb142(SubTree, SubTrees), + memberT(X, SubTree). +''' |