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-rw-r--r--prolog/problems/lists_advanced/rev_2/common.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/prolog/problems/lists_advanced/rev_2/common.py b/prolog/problems/lists_advanced/rev_2/common.py
index ee8c9ac..b673660 100644
--- a/prolog/problems/lists_advanced/rev_2/common.py
+++ b/prolog/problems/lists_advanced/rev_2/common.py
@@ -6,7 +6,7 @@ import prolog.util
from server.hints import Hint, HintPopup
id = 111
-number = 18
+number = 30
visible = True
facts = None
@@ -91,7 +91,7 @@ def hint(code, aux_code):
retract(rev([brix, cob], [[cob, brix] | yowza]))'''):
return [{'id': 'forcing_result_onto_recursion'}]
- if any(t.val in ('last', 'shiftleft', 'shiftright') for t in tokens):
+ if any(t.val in ('last', 'last_elem', 'shiftleft', 'shiftright') for t in tokens):
return [{'id': 'using_other_solutions'}]
if prolog.engine.ask_truthTO(engine_id, 'rev([qa, qb, qc, qd], [qa, qb, qc, qd])'):