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# coding=utf-8
from operator import itemgetter
import prolog.engine
import server.problems
id = 133
number = 40
visible = True
facts = None
solution = '''\
subset([], []).
subset([H|T], [H|T1]) :-
subset(T, T1).
subset([_|T], T1) :-
subset(T, T1).
'''
test_cases = [
('subset([], X)',
[{'X': '[]'}]),
('subset([1, 3, 5, 7], A), msort(A, X)',
[{'X': '[]'}, {'X': '[7]'}, {'X': '[5]'}, {'X': '[5, 7]'}, {'X': '[3]'},
{'X': '[3, 7]'}, {'X': '[3, 5]'}, {'X': '[3, 5, 7]'}, {'X': '[1]'},
{'X': '[1, 7]'}, {'X': '[1, 5]'}, {'X': '[1, 5, 7]'}, {'X': '[1, 3]'},
{'X': '[1, 3, 7]'}, {'X': '[1, 3, 5]'}, {'X': '[1, 3, 5, 7]'}]),
('subset([8, 4, 6, 2], A), msort(A, X)',
[{'X': '[]'}, {'X': '[2]'}, {'X': '[6]'}, {'X': '[2, 6]'}, {'X': '[4]'},
{'X': '[2, 4]'}, {'X': '[4, 6]'}, {'X': '[2, 4, 6]'}, {'X': '[8]'},
{'X': '[2, 8]'}, {'X': '[6, 8]'}, {'X': '[2, 6, 8]'}, {'X': '[4, 8]'},
{'X': '[2, 4, 8]'}, {'X': '[4, 6, 8]'}, {'X': '[2, 4, 6, 8]'}]),
('subset([5, 6, 7, 0, 2], A), msort(A, X)',
[{'X': '[]'}, {'X': '[2]'}, {'X': '[0]'}, {'X': '[0, 2]'}, {'X': '[7]'},
{'X': '[2, 7]'}, {'X': '[0, 7]'}, {'X': '[0, 2, 7]'}, {'X': '[6]'},
{'X': '[2, 6]'}, {'X': '[0, 6]'}, {'X': '[0, 2, 6]'}, {'X': '[6, 7]'},
{'X': '[2, 6, 7]'}, {'X': '[0, 6, 7]'}, {'X': '[0, 2, 6, 7]'},
{'X': '[5]'}, {'X': '[2, 5]'}, {'X': '[0, 5]'}, {'X': '[0, 2, 5]'},
{'X': '[5, 7]'}, {'X': '[2, 5, 7]'}, {'X': '[0, 5, 7]'},
{'X': '[0, 2, 5, 7]'}, {'X': '[5, 6]'}, {'X': '[2, 5, 6]'},
{'X': '[0, 5, 6]'}, {'X': '[0, 2, 5, 6]'}, {'X': '[5, 6, 7]'},
{'X': '[2, 5, 6, 7]'}, {'X': '[0, 5, 6, 7]'}, {'X': '[0, 2, 5, 6, 7]'}]),
]
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
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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