

'''simple docstring'''






def 		_A     (    A__     ,				A__     ,				A__     ,				A__      ):






 """simple docstring"""



 __lowercase							  = [False] * len(lowercase__      )
 __lowercase							  = []
 queue.append(lowercase__      )
 __lowercase							  = True

 while queue:
  __lowercase							  = queue.pop(0      )
  for ind in range(len(graph[u]      )      ):
   if visited[ind] is False and graph[u][ind] > 0:
    queue.append(lowercase__      )
    __lowercase							  = True
    __lowercase							  = u

 return visited[t]


def 		_A     (    A__     ,				A__     ,				A__      ):






 """simple docstring"""



 __lowercase							  = [-1] * (len(lowercase__      ))
 __lowercase							  = 0
 while bfs(lowercase__     ,				lowercase__     ,				lowercase__     ,				lowercase__      ):
  __lowercase							  = float('''Inf'''      )
  __lowercase							  = sink

  while s != source:
   # Find the minimum value in select path
   __lowercase							  = min(lowercase__     ,				graph[parent[s]][s]      )
   __lowercase							  = parent[s]

  max_flow += path_flow
  __lowercase							  = sink

  while v != source:
   __lowercase							  = parent[v]
   graph[u][v] -= path_flow
   graph[v][u] += path_flow
   __lowercase							  = parent[v]
 return max_flow


lowerCAmelCase__											=	[
    [0, 16, 13, 0, 0, 0],
    [0, 0, 10, 12, 0, 0],
    [0, 4, 0, 0, 14, 0],
    [0, 0, 9, 0, 0, 20],
    [0, 0, 0, 7, 0, 4],
    [0, 0, 0, 0, 0, 0],
]

lowerCAmelCase__						,			lowerCAmelCase__											=	0, 5






print(ford_fulkerson(graph, source, sink))





import os
import unittest

from huggingface_hub.utils import are_progress_bars_disabled

import transformers.models.bart.tokenization_bart
from transformers import logging
from transformers.testing_utils import CaptureLogger, mockenv, mockenv_context
from transformers.utils.logging import disable_progress_bar, enable_progress_bar





class       A    (   unittest.TestCase ):


							def 			_A       (self					):
									__lowercase=			logging.get_logger()

									# the current default level is logging.WARNING
									__lowercase=			logging.get_verbosity()

									logging.set_verbosity_error()
									self.assertEqual(logger.getEffectiveLevel()      ,				logging.get_verbosity()					)

									logging.set_verbosity_warning()
									self.assertEqual(logger.getEffectiveLevel()      ,				logging.get_verbosity()					)

									logging.set_verbosity_info()
									self.assertEqual(logger.getEffectiveLevel()      ,				logging.get_verbosity()					)

									logging.set_verbosity_debug()
									self.assertEqual(logger.getEffectiveLevel()      ,				logging.get_verbosity()					)

									# restore to the original level
									logging.set_verbosity(lowerCAmelCase					)


							def 			_A       (self					):
									__lowercase=			logging.get_verbosity()

									__lowercase=			logging.get_logger('transformers.models.bart.tokenization_bart'					)
									__lowercase=			'Testing 1, 2, 3'

									# should be able to log warnings (if default settings weren't overridden by `pytest --log-level-all`)
									if level_origin <= logging.WARNING:
											with CaptureLogger(lowerCAmelCase					) as cl:
													logger.warning(lowerCAmelCase					)
											self.assertEqual(cl.out      ,				msg + '\n'					)

									# this is setting the level for all of `transformers.*` loggers
									logging.set_verbosity_error()

									# should not be able to log warnings
									with CaptureLogger(lowerCAmelCase					) as cl:
											logger.warning(lowerCAmelCase					)
									self.assertEqual(cl.out      ,				''					)

									# should be able to log warnings again
									logging.set_verbosity_warning()
									with CaptureLogger(lowerCAmelCase					) as cl:
											logger.warning(lowerCAmelCase					)
									self.assertEqual(cl.out      ,				msg + '\n'					)

									# restore to the original level
									logging.set_verbosity(lowerCAmelCase					)


							@mockenv(TRANSFORMERS_VERBOSITY='error'					)
							def 			_A       (self					):
									# reset for the env var to take effect, next time some logger call is made
									transformers.utils.logging._reset_library_root_logger()
									# this action activates the env var
									__lowercase=			logging.get_logger('transformers.models.bart.tokenization_bart'					)

									__lowercase=			os.getenv('TRANSFORMERS_VERBOSITY'      ,				lowerCAmelCase					)
									__lowercase=			logging.log_levels[env_level_str]

									__lowercase=			logging.get_verbosity()
									self.assertEqual(
									    lowerCAmelCase      ,				lowerCAmelCase      ,				f'TRANSFORMERS_VERBOSITY={env_level_str}/{env_level}, but internal verbosity is {current_level}'      ,				)

									# restore to the original level
									__lowercase=			''
									transformers.utils.logging._reset_library_root_logger()


							@mockenv(TRANSFORMERS_VERBOSITY='super-error'					)
							def 			_A       (self					):
									# reset for the env var to take effect, next time some logger call is made
									transformers.utils.logging._reset_library_root_logger()
									__lowercase=			logging.logging.getLogger()
									with CaptureLogger(lowerCAmelCase					) as cl:
											# this action activates the env var
											logging.get_logger('transformers.models.bart.tokenization_bart'					)
									self.assertIn('Unknown option TRANSFORMERS_VERBOSITY=super-error'      ,				cl.out					)

									# no need to restore as nothing was changed







							def 			_A       (self					):
									# testing `logger.warning_advice()`
									transformers.utils.logging._reset_library_root_logger()

									__lowercase=			logging.get_logger('transformers.models.bart.tokenization_bart'					)
									__lowercase=			'Testing 1, 2, 3'

									with mockenv_context(TRANSFORMERS_NO_ADVISORY_WARNINGS='1'					):
											# nothing should be logged as env var disables this method
											with CaptureLogger(lowerCAmelCase					) as cl:
													logger.warning_advice(lowerCAmelCase					)
											self.assertEqual(cl.out      ,				''					)

									with mockenv_context(TRANSFORMERS_NO_ADVISORY_WARNINGS=''					):
											# should log normally as TRANSFORMERS_NO_ADVISORY_WARNINGS is unset
											with CaptureLogger(lowerCAmelCase					) as cl:
													logger.warning_advice(lowerCAmelCase					)
											self.assertEqual(cl.out      ,				msg + '\n'					)







def        _lowerCamelCase(	)						->	Optional[int]:

		'''simple docstring'''







		disable_progress_bar()
		assert are_progress_bars_disabled()

		enable_progress_bar()
		assert not are_progress_bars_disabled()






