old_contents: from re import split as resplit
  from typing import Callable, Union
  
  from dmoj.result import CheckerResult
  from dmoj.utils.unicode import utf8bytes
  
  verdict = u"\u2717\u2713"
  
  
  def check(process_output: bytes, judge_output: bytes, point_value: float, feedback: bool = True,
            match: Callable[[bytes, bytes], bool] = lambda p, j: p.strip() == j.strip(),
            **kwargs) -> Union[CheckerResult, bool]:
      process_lines = list(filter(None, resplit(b'[\r\n]', utf8bytes(process_output))))
      judge_lines = list(filter(None, resplit(b'[\r\n]', utf8bytes(judge_output))))
  
      if len(process_lines) > len(judge_lines):
          return False
  
      if not judge_lines:
          return True
  
      if isinstance(match, str):
          match = eval(match)
  
      cases = [verdict[0]] * len(judge_lines)
      count = 0
  
      for i, (process_line, judge_line) in enumerate(zip(process_lines, judge_lines)):
          if match(process_line, judge_line):
              cases[i] = verdict[1]
              count += 1
  
      return CheckerResult(count == len(judge_lines), point_value * (1.0 * count / len(judge_lines)),
                           ''.join(cases) if feedback else "")
  
  
  check.run_on_error = True  # type: ignore
  
new_contents: from re import split as resplit
  from typing import Callable, Union
  
  from dmoj.result import CheckerResult
  from dmoj.utils.unicode import utf8bytes
  
  verdict = u"\u2717\u2713"
  
  
  def check(process_output: bytes, judge_output: bytes, point_value: float, feedback: bool = True,
            **kwargs) -> Union[CheckerResult, bool]:
      process_lines = list(filter(None, resplit(b'[\r\n]', utf8bytes(process_output))))
      judge_lines = list(filter(None, resplit(b'[\r\n]', utf8bytes(judge_output))))
  
      if len(process_lines) > len(judge_lines):
          return False
  
      if not judge_lines:
          return True
  
      cases = [verdict[0]] * len(judge_lines)
      count = 0
  
      for i, (process_line, judge_line) in enumerate(zip(process_lines, judge_lines)):
          if process_line.strip() == judge_line.strip():
              cases[i] = verdict[1]
              count += 1
  
      return CheckerResult(count == len(judge_lines), point_value * (1.0 * count / len(judge_lines)),
                           ''.join(cases) if feedback else "")
  
  
  check.run_on_error = True  # type: ignore
  
subject: Remove the match param to fix RCE.