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# coding=utf-8
from operator import itemgetter
import prolog.engine
import server.problems
id = 111
number = 18
visible = True
facts = None
solution = '''\
conc111([], L, L).
conc111([H|T], L2, [H|L]) :-
conc111(T, L2, L).
rev([], []).
rev([H|T], R):-
rev(T, R1),
conc111(R1, [H], R).
'''
test_cases = [
('rev([], X)',
[{'X': '[]'}]),
('rev([s, k, c, d, d], X)',
[{'X': '[d, d, c, k, s]'}]),
('rev(X, [s, k, c, d, d])',
[{'X': '[d, d, c, k, s]'}]),
]
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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