Added problem "counting".

Some other small text corrections.

2 files changed, 20 insertions, 10 deletions

diff --git a/python/problems/while_and_if/consumers_anonymous/common.py b/python/problems/while_and_if/consumers_anonymous/common.py
index ff3f928..07a0ebf 100644
--- a/python/problems/while_and_if/consumers_anonymous/common.py
+++ b/python/problems/while_and_if/consumers_anonymous/common.py
@@ -32,6 +32,7 @@ hint_type = {
     'final_hint': Hint('final_hint'),
     'summation': Hint('summation'),
     'counting': Hint('counting'),
+    'counting_with_0': Hint('counting_with_0'),
     'problematic_test_case': Hint('problematic_test_case'),
 }
 
@@ -53,7 +54,8 @@ def test(python, code):
         (105, 3),
         (10, 10),
         (10, 10),
-        (9, 9)
+        (9, 9),
+        (0, 0)
     ]
 
     # List of outputs: (expression result, stdout, stderr, exception).
@@ -114,14 +116,18 @@ def hint(python, code):
 
     # student's answer is not correct (three possibilities)
     if not string_almost_equal(answer[0][1], 15) or \
-       not string_almost_equal(answer[0][2], 105) or \
-       not string_almost_equal(answer[0][3], 20):
+       not string_almost_equal(answer[1][1], 105) or \
+       not string_almost_equal(answer[2][1], 20):
         return [{'id' : 'summation'}]
 
-    # student's answer is not correct (three possibilities)
-    if not string_almost_equal(answer[0][1], 2) or \
-       not string_almost_equal(answer[0][2], 3) or \
-       not string_almost_equal(answer[0][3], 10):
+    # student's counting of items, when last price iz zero is incorrect
+    if not string_almost_equal(answer[0][1], 2) and \
+       string_almost_equal(answer[0][1], 3):
+        return [{'id' : 'counting_with_0'}]
+
+    # counting in general is incorrect
+    if not string_almost_equal(answer[1][1], 3) or \
+       not string_almost_equal(answer[2][1], 10):
         return [{'id' : 'counting'}]
 
     return None
diff --git a/python/problems/while_and_if/consumers_anonymous/sl.py b/python/problems/while_and_if/consumers_anonymous/sl.py
index ee2700c..284abbc 100644
--- a/python/problems/while_and_if/consumers_anonymous/sl.py
+++ b/python/problems/while_and_if/consumers_anonymous/sl.py
@@ -96,6 +96,9 @@ hint = {
 
     'counting': ['''<p>Napaka pri štetju stvari.<p>'''],
 
+    'counting_with_0': ['''<p>Napaka pri štetju, kadar je zadnja cena 0.<p>''',
+                        '''<p>Števec povečaj, le če je cena > 0</p>'''],
+
     'name_error' : [mod.general_msg['error_head'],
                     mod.general_msg['general_exception'],
                     mod.general_msg['name_error'],
@@ -107,9 +110,10 @@ hint = {
 Pravilna vsota [%=sum%], pravilno število stvari: [%=count%]'''],
 
     'final_hint': ['''\
-<p><b>Odlično!</b>Naloga rešena.</p>
-Še zanimivost: v while zanki smo negirali ustavitveni pogoj tako, da smo negirali posamezne pogoje in
-spremenili pogoj <code>or</code> v <code>and</code>. Temu pravimo De Morganov zakon.
+<p><b>Odlično!</b> Naloga rešena.</p>
+Še zanimivost: v while zanki smo dobili ustavitveni pogoj tako, da smo negirali pogoj iz teksta (ali vnesemo 0 ali je
+vnešenih deset števil ali ko vsota cen doseže ali preseže 100 evrov). Pri tem smo ali (or) spremenili v in (and):
+<code>cena > 0 and stevec < 10 and vsota < 100</code>. Temu pravimo De Morganov zakon.
 '''],
 
     'eof_error':[mod.general_msg['eof_error'],