NDOJ/validator_template/template.py
2020-07-29 16:36:54 -05:00

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3 KiB
Python

import os, re
import subprocess
from dmoj.error import InternalError
from dmoj.judgeenv import env, get_problem_root
from dmoj.result import CheckerResult
from dmoj.utils.helper_files import compile_with_auxiliary_files, mktemp, parse_helper_file_error
from dmoj.utils.unicode import utf8text
executor = None
def get_executor(files, lang, compiler_time_limit, problem_id):
global executor
if executor is None:
if not isinstance(files, list):
files = [files]
filenames = [os.path.join(get_problem_root(problem_id), f) for f in files]
executor = compile_with_auxiliary_files(filenames,
compiler_time_limit=compiler_time_limit)
return executor
class Module:
AC = 0
WA = 1
PARTIAL = 2
# a float from 0 to 1
repartial = re.compile(r'^[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?$', re.M)
@classmethod
def parse_return_code(cls, proc, executor, point_value, time_limit, memory_limit, feedback, name, stderr):
if proc.returncode == cls.AC:
return CheckerResult(True, point_value, feedback=feedback)
elif proc.returncode == cls.PARTIAL:
match = cls.repartial.search(stderr)
if not match:
raise InternalError('Invalid stderr for partial points: %r' % stderr)
points = float(match.group(0))
if not 0 <= points <= 1:
raise InternalError('Invalid partial points: %d' % points)
ac = (points == 1)
return CheckerResult(ac, points * point_value, feedback=feedback)
elif proc.returncode == cls.WA:
return CheckerResult(False, 0, feedback=feedback)
else:
parse_helper_file_error(proc, executor, name, stderr, time_limit, memory_limit)
def check(process_output, judge_output, judge_input,
problem_id={{problemid}},
files={{filecpp}},
lang='CPP14',
time_limit=10,
memory_limit=1024 * 512,
compiler_time_limit=30,
feedback=True,
point_value=None, **kwargs) -> CheckerResult:
executor = get_executor(files, lang, compiler_time_limit, problem_id)
with mktemp(judge_input) as input_file, mktemp(process_output) as output_file, mktemp(judge_output) as judge_file:
try:
process = executor.launch(input_file.name, output_file.name, judge_file.name, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, memory=memory_limit, time=time_limit)
proc_output, error = map(utf8text, process.communicate())
except Exception as err:
raise InternalError('Error while running checker: %r', err)
return Module.parse_return_code(process, executor, point_value, time_limit,
memory_limit,
feedback=utf8text(proc_output)
if feedback else None, name='checker',
stderr=error)