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from operator import itemgetter
import socket
import prolog.engine
import prolog.util
from server.hints import Hint, HintPopup
id = 143
number = 90
visible = True
facts = None
solution = '''\
max143([X], X).
max143([H|T], Max):-
max143(T, Max1),
( H > Max1, Max is H
;
H =< Max1, Max is Max1 ).
maxT(t(E), E) :- !.
maxT(Tree, Max) :-
Tree =.. [t, E|SubTrees],
getMaxElems(SubTrees, MaxElems),
max143([E|MaxElems], Max).
getMaxElems([], []).
getMaxElems([SubTree|SubTrees], [MaxElem|MaxElems]) :-
maxT(SubTree, MaxElem),
getMaxElems(SubTrees, MaxElems).
'''
test_cases = [
('maxT(t(666), X), X == 666',
[{}]),
('setof(M, maxT(t(3,t(2,t(3),t(6)),t(-1,t(0,t(8)),t(1))), M), X), X == [8]',
[{}]),
('setof(M, maxT(t(-3,t(-2,t(-3),t(-6)),t(-11,t(-1,t(-8)),t(-10))), M), X), X == [-1]',
[{}]),
]
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 []
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