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from operator import itemgetter
import socket
import prolog.engine
from server.hints import Hint
import server.problems
id = 12519
number = 40
visible = True
facts = 'mondial'
solution = '''\
simpop(X, Y, D):-
findall(D/X/Y, (country(X,_,_,_,_,PX), country(Y,_,_,_,_,PY), X \== Y, D is abs(PX-PY)), L),
sort(L, [D/X/Y|_]).
'''
test_cases = [
('simpop(X, Y, D)',
[{'X': "'Grenada'", 'Y': "'Tonga'", 'D': '76'}]),
("simpop('Slovenia', Y, D)",
[{'Y': "'Macedonia'", 'D': '973'}]),
("simpop(X, 'Australia', D)",
[{'X': "'Taiwan'", 'D': '180541'}]),
("simpop(X, Y, 1176831)",
[{'X': "'Uzbekistan'", 'Y': "'Venezuela'"}]),
]
def test(code, aux_code):
n_correct = 0
engine_id = None
try:
engine_id, output = prolog.engine.create(code=code+aux_code, timeout=5.0)
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, inference_limit = None):
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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