diff options
Diffstat (limited to 'prolog/problems/lists_advanced/evenlen_1_+_oddlen_1')
3 files changed, 92 insertions, 0 deletions
diff --git a/prolog/problems/lists_advanced/evenlen_1_+_oddlen_1/common.py b/prolog/problems/lists_advanced/evenlen_1_+_oddlen_1/common.py new file mode 100644 index 0000000..1236551 --- /dev/null +++ b/prolog/problems/lists_advanced/evenlen_1_+_oddlen_1/common.py @@ -0,0 +1,56 @@ +# coding=utf-8 + +from operator import itemgetter +import prolog.engine +import server.problems + +id = 116 +number = 23 +visible = False +facts = None + +solution = '''\ +evenlen([]). +evenlen([_,_|T]) :- + evenlen(T). + +oddlen([_]). +oddlen([_,_|T]) :- + oddlen(T). +''' + +test_cases = [ + ('evenlen([])', + [{}]), + ('evenlen([r, w, t, q])', + [{}]), + ('\+ evenlen([r, w, t, q, l])', + [{}]), + ('\+ oddlen([r, w, t, q])', + [{}]), + ('oddlen([r, w, t, q, l])', + [{}]), +] + +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/evenlen_1_+_oddlen_1/en.py b/prolog/problems/lists_advanced/evenlen_1_+_oddlen_1/en.py new file mode 100644 index 0000000..a01a41b --- /dev/null +++ b/prolog/problems/lists_advanced/evenlen_1_+_oddlen_1/en.py @@ -0,0 +1,18 @@ +# coding=utf-8 + +name = 'evenlen/1 + oddlen/1' +slug = 'check if the length of a list is even or odd' + +description = '''\ +<p><code>evenlen(L)</code>: the list <code>L</code> has an even number of elements.<br /> +<code>oddlen(L)</code>: the list <code>L</code> has an odd number of elements.</p> +<pre> +?- oddlen([1,2,3,4,5]). + true. +?- oddlen([1,2,3,4]). + false. +?- evenlen([1,2,3,4]). + true. +</pre>''' + +hint = {} diff --git a/prolog/problems/lists_advanced/evenlen_1_+_oddlen_1/sl.py b/prolog/problems/lists_advanced/evenlen_1_+_oddlen_1/sl.py new file mode 100644 index 0000000..4ca44c2 --- /dev/null +++ b/prolog/problems/lists_advanced/evenlen_1_+_oddlen_1/sl.py @@ -0,0 +1,18 @@ +# coding=utf-8 + +name = 'evenlen/1 + oddlen/1' +slug = 'Brez aritmetike preveri, če je seznam sode ali lihe dolžine' + +description = '''\ +<p><code>evenlen(L)</code>: seznam <code>L</code> ima sodo število elementov.<br /> +<code>oddlen(L)</code>: seznam <code>L</code> ima liho število elementov.</p> +<pre> +?- oddlen([1,2,3,4,5]). + true. +?- oddlen([1,2,3,4]). + false. +?- evenlen([1,2,3,4]). + true. +</pre>''' + +hint = {} |