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# coding=utf-8
id = 159
number = 63
visible = True
facts = None
solution = '''\
linear_opt(X, Y, MaxE) :-
{ X >= 0, Y >= 0, X =< 5,
X+Y =< 7, X+2*Y >= 4, Y =< X+5,
MaxE = -0.4*X+3.2*Y },
maximize(MaxE).'''
test_cases = [
('linear_opt(X, Y, MaxE), abs(X - 1.0) =< 1e-8, abs(Y - 6.0) =< 1e-8, abs(MaxE - 18.8) =< 1e-8',
[{}]),
('setof(X/Y/MaxE, linear_opt(X, Y, MaxE), L), L = [X/Y/MaxE], abs(X - 1.0) =< 1e-8, abs(Y - 6.0) =< 1e-8, abs(MaxE - 18.8) =< 1e-8',
[{}]),
]
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
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