






__A      =				{'a': ['c', 'b'], 'b': ['d', 'e'], 'c': [], 'd': [], 'e': []}
__A      =				['a', 'b', 'c', 'd', 'e']




def      __A					(     _lowercase					,			_lowercase					,			_lowercase ):

					'''simple docstring'''







					_A								= start
					# add current to visited
					visited.append(_lowercase )
					_A								= edges[current]
					for neighbor in neighbors:
										# if neighbor not in visited, visit
										if neighbor not in visited:
															_A								= topological_sort(_lowercase					,			_lowercase					,			_lowercase )
    # if all neighbors visited add current to sort
					sort.append(_lowercase )
					# if all vertices haven't been visited select a new one to visit
					if len(_lowercase ) != len(_lowercase ):
										for vertice in vertices:
															if vertice not in visited:
																				_A								= topological_sort(_lowercase					,			_lowercase					,			_lowercase )
    # return sort
					return sort


if __name__ == "__main__":
			__A      =				topological_sort('a', [], [])
			print(sort)











from __future__ import annotations




def      __A					(     _lowercase					,			_lowercase					,			_lowercase					,			_lowercase ):  # noqa: E741

					'''simple docstring'''







					while r - l > 1:
										_A								= (l + r) // 2
										if v[m] >= key:
															_A								= m
										else:
															_A								= m  # noqa: E741
					return r




def      __A					(     _lowercase ):

					'''simple docstring'''







					if len(_lowercase ) == 0:
										return 0

					_A								= [0] * len(_lowercase )
					_A								= 1

					_A								= v[0]

					for i in range(1					,			len(_lowercase ) ):
										if v[i] < tail[0]:
															_A								= v[i]
										elif v[i] > tail[length - 1]:
															_A								= v[i]
															length += 1
										else:
															_A								= v[i]

					return length


if __name__ == "__main__":
				import doctest

				doctest.testmod()



