From 80881f3a6b05474fcd5afe7b3ed30cc7e75e4a92 Mon Sep 17 00:00:00 2001
From: Aleksander Sadikov <aleksander.sadikov@fri.uni-lj.si>
Date: Tue, 1 Mar 2016 01:09:07 +0100
Subject: Improved hints for ancestor/2 and descendant/2.

---
 prolog/problems/family_relations/ancestor_2/common.py | 3 ++-
 prolog/problems/family_relations/ancestor_2/sl.py     | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

(limited to 'prolog/problems/family_relations/ancestor_2')

diff --git a/prolog/problems/family_relations/ancestor_2/common.py b/prolog/problems/family_relations/ancestor_2/common.py
index d2e4f76..6690e00 100644
--- a/prolog/problems/family_relations/ancestor_2/common.py
+++ b/prolog/problems/family_relations/ancestor_2/common.py
@@ -29,6 +29,7 @@ hint_type = {
     'ancestor_to_oneself': Hint('ancestor_to_oneself'),
     'descendant_need_not_be_parent': Hint('descendant_need_not_be_parent'),
     'wrong_direction': Hint('wrong_direction'),
+    'timeout': Hint('timeout'),
 }
 
 test_cases = [
@@ -105,7 +106,7 @@ def hint(code, aux_code):
             return [{'id': 'descendant_need_not_be_parent'}]
 
     except socket.timeout as ex:
-        pass
+        return [{'id': 'timeout'}]
 
     finally:
         if engine_id:
diff --git a/prolog/problems/family_relations/ancestor_2/sl.py b/prolog/problems/family_relations/ancestor_2/sl.py
index 081732b..03e9230 100644
--- a/prolog/problems/family_relations/ancestor_2/sl.py
+++ b/prolog/problems/family_relations/ancestor_2/sl.py
@@ -63,6 +63,10 @@ Skratka, poskusi prevesti na "manjši" problem, npr. prednik v enem koraku manj
 <p>Si morda sprogramiral ravno obratno in zamenjal prednika s potomcem?
 <code>X</code> naj bo prednik od <code>Y</code> in ne obratno!</p>
 <p><img src="[%@resource Prolog_ancestor_02.svg%]" /></p>
+''',
+
+    'timeout': '''\
+<p>Je morda na delu potencialno neskončna rekurzija?</p>
 ''',
 }
 
-- 
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