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authorTimotej Lazar <timotej.lazar@fri.uni-lj.si>2016-03-17 14:19:45 +0100
committerTimotej Lazar <timotej.lazar@fri.uni-lj.si>2016-03-17 14:19:45 +0100
commitcf4e59c9d6bce337514fc7d77120baced0d6d7bc (patch)
tree33f7cd7d3ae9595ad548427f3a718f5918935e53 /prolog/problems/lists_advanced/palindrome_1
parenta9416de1d2bde1b2327928717d00d262160912af (diff)
Prolog: split lists exercises into two groups
Diffstat (limited to 'prolog/problems/lists_advanced/palindrome_1')
-rw-r--r--prolog/problems/lists_advanced/palindrome_1/common.py54
-rw-r--r--prolog/problems/lists_advanced/palindrome_1/en.py15
-rw-r--r--prolog/problems/lists_advanced/palindrome_1/sl.py15
3 files changed, 84 insertions, 0 deletions
diff --git a/prolog/problems/lists_advanced/palindrome_1/common.py b/prolog/problems/lists_advanced/palindrome_1/common.py
new file mode 100644
index 0000000..e9960c6
--- /dev/null
+++ b/prolog/problems/lists_advanced/palindrome_1/common.py
@@ -0,0 +1,54 @@
+# coding=utf-8
+
+from operator import itemgetter
+import prolog.engine
+import server.problems
+
+id = 112
+number = 19
+visible = False
+facts = None
+
+solution = '''\
+conc112([], L, L).
+conc112([H|T], L2, [H|L]) :-
+ conc112(T, L2, L).
+rev112([], []).
+rev112([H|T], R):-
+ rev112(T, R1),
+ conc112(R1, [H], R).
+palindrome(L) :-
+ rev112(L, L).
+'''
+
+test_cases = [
+ ('palindrome([])',
+ [{}]),
+ ('palindrome([a, b, e, A, B, C])',
+ [{'A': 'e', 'B': 'b', 'C': 'a'}]),
+ ('palindrome([b, e, X])',
+ [{'X': 'b'}]),
+]
+
+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_advanced/palindrome_1/en.py b/prolog/problems/lists_advanced/palindrome_1/en.py
new file mode 100644
index 0000000..48ee8ac
--- /dev/null
+++ b/prolog/problems/lists_advanced/palindrome_1/en.py
@@ -0,0 +1,15 @@
+# coding=utf-8
+
+name = 'palindrome/1'
+slug = 'check if list is a palindrome'
+
+description = '''\
+<p><code>palindrome(L)</code>: the elements of list <code>L</code> are the same when read from the front or back of the list.</p>
+<pre>
+?- palindrome([1,2,3,2,1]).
+ true.
+?- palindrome([1,2,3]).
+ false.
+</pre>'''
+
+hint = {}
diff --git a/prolog/problems/lists_advanced/palindrome_1/sl.py b/prolog/problems/lists_advanced/palindrome_1/sl.py
new file mode 100644
index 0000000..ad67d3f
--- /dev/null
+++ b/prolog/problems/lists_advanced/palindrome_1/sl.py
@@ -0,0 +1,15 @@
+# coding=utf-8
+
+name = 'palindrome/1'
+slug = 'Preveri, če elementi seznama tvorijo palindrom'
+
+description = '''\
+<p><code>palindrome(L)</code>: Elementi seznama <code>L</code> se preberejo v istem vrstnem redu z začetka in s konca seznama.</p>
+<pre>
+?- palindrome([1,2,3,2,1]).
+ true.
+?- palindrome([1,2,3]).
+ false.
+</pre>'''
+
+hint = {}