def 					_snake_case	(  __snake_case  ,     __snake_case  ,     __snake_case  ,     __snake_case						):
					# Return True if there is node that has not iterated.
					_UpperCamelCase			     =     [False] * len(__snake_case						)
					_UpperCamelCase			     =     []
					queue.append(__snake_case						)
					_UpperCamelCase			     =     True

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

					return visited[t]
def 					_snake_case	(  __snake_case  ,     __snake_case  ,     __snake_case						):
					# This array is filled by BFS and to store path
					_UpperCamelCase			     =     [-1] * (len(__snake_case						))
					_UpperCamelCase			     =     0
					while bfs(__snake_case  ,     __snake_case  ,     __snake_case  ,     __snake_case						):
										_UpperCamelCase			     =     float('''Inf'''						)
										_UpperCamelCase			     =     sink

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

										max_flow += path_flow
										_UpperCamelCase			     =     sink

										while v != source:
															_UpperCamelCase			     =     parent[v]
															graph[u][v] -= path_flow
															graph[v][u] += path_flow
															_UpperCamelCase			     =     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))

from typing import List

from .keymap import KEYMAP, get_character
def 					_snake_case	(  __snake_case						):

					def decorator(__snake_case						):
										_UpperCamelCase			     =     getattr(__snake_case  ,     '''handle_key'''  ,     []						)
										handle += [key]
										setattr(__snake_case  ,     '''handle_key'''  ,     __snake_case						)
										return func

					return decorator
def 					_snake_case	(  *__snake_case						):

					def decorator(__snake_case						):
										_UpperCamelCase			     =     getattr(__snake_case  ,     '''handle_key'''  ,     []						)
										handle += keys
										setattr(__snake_case  ,     '''handle_key'''  ,     __snake_case						)
										return func

					return decorator
class     lowerCAmelCase_     (       __lowercase ):







							def __new__(   cls      :     Optional[Any] ,			_A      :     Optional[Any] ,			_A      :     Optional[int] ,			_A      :     Union[str, Any]		):
												_UpperCamelCase			     =     super().__new__(cls ,			_A ,			_A ,			_A		)
												if not hasattr(_A ,			'''key_handler'''		):
																	setattr(_A ,			'''key_handler''' ,			{}		)
												setattr(_A ,			'''handle_input''' ,			KeyHandler.handle_input		)

												for value in attrs.values():
																	_UpperCamelCase			     =     getattr(_A ,			'''handle_key''' ,			[]		)
																	for key in handled_keys:
																						_UpperCamelCase			     =     value
												return new_cls







							@staticmethod
							def  UpperCamelCase_						(   cls      :     str		):
												_UpperCamelCase			     =     get_character()
												if char != KEYMAP["undefined"]:
																	_UpperCamelCase			     =     ord(_A		)
												_UpperCamelCase			     =     cls.key_handler.get(_A		)
												if handler:
																	_UpperCamelCase			     =     char
																	return handler(cls		)
												else:
																	return None




def 					_snake_case	(  cls						):
					return KeyHandler(cls.__name__  ,     cls.__bases__  ,     cls.__dict__.copy()						)
