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# coding=utf-8
from operator import itemgetter
import prolog.engine
import server.problems
id = 124
number = 31
visible = True
facts = None
solution = '''\
pivoting(_, [], [], []).
pivoting(P, [H|T], [H|S], G) :-
H =< P,
pivoting(P, T, S, G).
pivoting(P, [H|T], S, [H|G]) :-
H > P,
pivoting(P, T, S, G).
'''
test_cases = [
('pivoting(5, [], A, B)',
[{'A': '[]', 'B': '[]'}]),
('pivoting(5, [6, 7, 6], A, B)',
[{'A': '[]', 'B': '[6, 7, 6]'}]),
('pivoting(4, [2, 1, 8, 9, 3, 4, 2], A, B)',
[{'A': '[2, 1, 3, 4, 2]', 'B': '[8, 9]'}]),
('pivoting(4, [22, 1, 0, 8, 3, 5, 7, -2], A, B)',
[{'A': '[1, 0, 3, -2]', 'B': '[22, 8, 5, 7]'}]),
]
def test(program, solved_problems):
code = (program + '\n' +
server.problems.solutions_for_problems('prolog', solved_problems))
n_correct = 0
engine_id = None
try:
engine_id, output = prolog.engine.create(code=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
finally:
if engine_id:
prolog.engine.destroy(engine_id)
passed = n_correct == len(test_cases)
hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_cases)}}]
return passed, hints
def hint(program, solved_problems):
# TODO
return []
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