diff options
Diffstat (limited to 'prolog/problems/lists/memb_2/common.py')
-rw-r--r-- | prolog/problems/lists/memb_2/common.py | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/prolog/problems/lists/memb_2/common.py b/prolog/problems/lists/memb_2/common.py index 4f2a251..45e070a 100644 --- a/prolog/problems/lists/memb_2/common.py +++ b/prolog/problems/lists/memb_2/common.py @@ -72,14 +72,14 @@ def hint(code, aux_code): # recursion is getting bigger and bigger - # target predicate seems to always be false - if not prolog.engine.ask_truth(engine_id, 'memb(_, _)'): - return [{'id': 'predicate_always_false'}] - # missing/failed base case - if not prolog.engine.ask_truthTO(engine_id, 'memb(qq, [qq|_])'): + if not prolog.engine.ask_truthTO(engine_id, 'memb(qq, [qq,_,_,_])'): return [{'id': 'base_case'}] + # target predicate seems to always be false + if not prolog.engine.ask_truth(engine_id, 'memb(_, [_,_,_,_,_,_])'): + return [{'id': 'predicate_always_false'}] + # TODO: Tim, can we include 'fail'-used as a general hint? except socket.timeout as ex: |