From 5d7775da938396b90166958a0908339f6b437b0c Mon Sep 17 00:00:00 2001
From: Aleksander Sadikov <aleksander.sadikov@fri.uni-lj.si>
Date: Mon, 29 Feb 2016 01:07:53 +0100
Subject: Final hint added for sister/2.

---
 prolog/problems/family_relations/sister_2/common.py | 3 ++-
 prolog/problems/family_relations/sister_2/sl.py     | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

(limited to 'prolog/problems')

diff --git a/prolog/problems/family_relations/sister_2/common.py b/prolog/problems/family_relations/sister_2/common.py
index 8493007..456ee97 100644
--- a/prolog/problems/family_relations/sister_2/common.py
+++ b/prolog/problems/family_relations/sister_2/common.py
@@ -28,6 +28,7 @@ hint_type = {
     'neq_used_too_early': Hint('neq_used_too_early'),
     'neq+_instead_of_neq': Hint('neq+_instead_of_neq'),
     'predicate_always_false': Hint('predicate_always_false'),
+    'final_hint': Hint('final_hint'),
 }
 
 test_cases = [
@@ -57,7 +58,7 @@ def test(code, aux_code):
         if engine_id:
             prolog.engine.destroy(engine_id)
 
-    hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_cases)}}]
+    hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_cases)}}, {'id': 'final_hint'}]
     return n_correct, len(test_cases), hints
 
 def hint(code, aux_code):
diff --git a/prolog/problems/family_relations/sister_2/sl.py b/prolog/problems/family_relations/sister_2/sl.py
index a1cf5c0..16ae999 100644
--- a/prolog/problems/family_relations/sister_2/sl.py
+++ b/prolog/problems/family_relations/sister_2/sl.py
@@ -69,5 +69,11 @@ ko naleti na primerjavo.</p>
 <p>Vse kaže, da tvoj predikat vedno vrne "false". Si mu dal pravilno ime, si se morda pri imenu zatipkal?</p>
 <p>Če je ime pravilno, se morda splača preveriti tudi, če se nisi zatipkal kje drugje,
 je morda kakšna pika namesto vejice ali obratno, morda kakšna spremenljivka z malo začetnico?</p>
+''',
+
+    'final_hint': '''\
+<p>Pri tej nalogi si uporabil operator \==. Ta preverja, če njegova operanda nista enaka točno v tistem
+trenutku, ko prolog naleti nanj. Če ga daš na začetek svoje rešitve, ta ne deluje kot bi si želel.
+(Če želiš, lahko to seveda preveriš.)</p>
 ''',
 }
-- 
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