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# coding=utf-8
from operator import itemgetter
import prolog.engine
import server.problems
id = 150
number = 62
visible = True
facts = None
solution = '''\
tobase(0, _, 0) :- !.
tobase(N, B, Nb) :-
B in 2..10,
indomain(B),
N #= N1 * B + Rem,
Rem #>= 0, Rem #< B,
Nb #= Nb1 * 10 + Rem,
tobase(N1, B, Nb1).'''
test_cases = [
('tobase(214, 2, X)',
[{'X': '11010110'}]),
('tobase(321, 7, X)',
[{'X': '636'}]),
('tobase(X, 8, 777)',
[{'X': '511'}]),
('tobase(X, 8, 132)',
[{'X': '90'}]),
('tobase(653, X, 10103)',
[{'X': '5'}]),
('tobase(123, X, 146)',
[{'X': '9'}]),
('setof(B/N, tobase(123, B, N), X)',
[{'X': '[2/1111011, 3/11120, 4/1323, 5/443, 6/323, 7/234, 8/173, 9/146, 10/123]'}]),
]
def test(program, solved_problems):
code = (program + '\n' +
server.problems.solutions_for_problems('prolog', solved_problems))
n_correct = 0
engine_id = None
try:
engine_id, output = prolog.engine.create(code=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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