3 files changed, 0 insertions, 75 deletions
diff --git a/prolog/problems/lists/len_2/common.py b/prolog/problems/lists/len_2/common.py
deleted file mode 100644
index 93a1faa..0000000
--- a/prolog/problems/lists/len_2/common.py
+++ /dev/null
@@ -1,49 +0,0 @@
-# coding=utf-8
-
-from operator import itemgetter
-import prolog.engine
-import server.problems
-
-id = 119
-number = 26
-visible = False
-facts = None
-
-solution = '''\
-len([], 0).
-len([_|T], Len) :-
-  len(T, LenT),
-  Len is LenT + 1.
-'''
-
-test_cases = [
-    ('len([8, 3, 5, 1], X)',
-        [{'X': '4'}]),
-    ('len([2, -3, 5, 0, 3], X)',
-        [{'X': '5'}]),
-    ('len([], X)',
-        [{'X': '0'}]),
-]
-
-def test(code, aux_code):
-    n_correct = 0
-    engine_id = None
-    try:
-        engine_id, output = prolog.engine.create(code=code+aux_code, timeout=1.0)
-        if engine_id is not None and 'error' not in map(itemgetter(0), output):
-            # Engine successfully created, and no syntax error in program.
-            for query, answers in test_cases:
-                if prolog.engine.check_answers(engine_id, query=query, answers=answers, timeout=1.0):
-                    n_correct += 1
-    except socket.timeout:
-        pass
-    finally:
-        if engine_id:
-            prolog.engine.destroy(engine_id)
-
-    hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_cases)}}]
-    return n_correct, len(test_cases), hints
-
-def hint(code, aux_code):
-    # TODO
-    return []
diff --git a/prolog/problems/lists/len_2/en.py b/prolog/problems/lists/len_2/en.py
deleted file mode 100644
index 3ca963e..0000000
--- a/prolog/problems/lists/len_2/en.py
+++ /dev/null
@@ -1,13 +0,0 @@
-# coding=utf-8
-
-name = 'len/2'
-slug = 'find the length of a list'
-
-description = '''\
-<p><code>len(L, Len)</code>: <code>Len</code> is the length of the list <code>L</code>.</p>
-<pre>
-?- len([1,2,3], Len).
-  Len = 3.
-</pre>'''
-
-hint = {}
diff --git a/prolog/problems/lists/len_2/sl.py b/prolog/problems/lists/len_2/sl.py
deleted file mode 100644
index 0e98272..0000000
--- a/prolog/problems/lists/len_2/sl.py
+++ /dev/null
@@ -1,13 +0,0 @@
-# coding=utf-8
-
-name = 'len/2'
-slug = 'Izračunaj dolžino danega seznama'
-
-description = '''\
-<p><code>len(L, Len)</code>: <code>Len</code> je dolžina seznama <code>L</code>.</p>
-<pre>
-?- len([1,2,3], Len).
-  Len = 3.
-</pre>'''
-
-hint = {}