



"""simple docstring"""






#
# Sort large text files in a minimum amount of memory
#
import argparse
import os

class 			__SCREAMING_SNAKE_CASE      :


					'''simple docstring'''





					_a       =				'block_{0}.dat'



					def __init__(			self				:    Optional[int],    lowerCamelCase				:    str	)->   int:
								lowerCamelCase__						:						str						      =filename
								lowerCamelCase__						:						Dict						      =[]



					def 						snake_case			(			self				:    Dict,    lowerCamelCase				:    Any,    lowerCamelCase				:    str	)->   int:
								lowerCamelCase__						:						Any						      =self.BLOCK_FILENAME_FORMAT.format(lowerCamelCase	)
								with open(lowerCamelCase,    '''w'''	) as file:
											file.write(lowerCamelCase	)
								self.block_filenames.append(lowerCamelCase	)



					def 						snake_case			(			self				:    Union[str, Any]	)->   Dict:
								return self.block_filenames



					def 						snake_case			(			self				:    List[Any],    lowerCamelCase				:    Union[str, Any],    lowerCamelCase				:    str=None	)->   List[str]:
								lowerCamelCase__						:						str						      =0
								with open(self.filename	) as file:
											while True:
														lowerCamelCase__						:						Tuple						      =file.readlines(lowerCamelCase	)

														if lines == []:
																	break

														if sort_key is None:
																	lines.sort()
														else:
																	lines.sort(key=lowerCamelCase	)

														self.write_block(''''''.join(lowerCamelCase	),    lowerCamelCase	)
														i += 1




					def 						snake_case			(			self				:    Tuple	)->   Union[str, Any]:
								map(os.remove,    self.block_filenames	)





class 			__SCREAMING_SNAKE_CASE      :


					'''simple docstring'''





					def 						snake_case			(			self				:    Optional[int],    lowerCamelCase				:    Union[str, Any]	)->   int:
								lowerCamelCase__						:						List[Any]						      =-1
								lowerCamelCase__						:						Any						      =None

								for i in range(len(lowerCamelCase	)	):
											if min_str is None or choices[i] < min_str:
														lowerCamelCase__						:						List[Any]						      =i

								return min_index





class 			__SCREAMING_SNAKE_CASE      :


					'''simple docstring'''





					def __init__(			self				:    Any,    lowerCamelCase				:    List[Any]	)->   List[Any]:
								lowerCamelCase__						:						Any						      =files
								lowerCamelCase__						:						Optional[Any]						      =set()
								lowerCamelCase__						:						Any						      =len(lowerCamelCase	)
								lowerCamelCase__						:						int						      ={i: None for i in range(self.num_buffers	)}



					def 						snake_case			(			self				:    Optional[int]	)->   Optional[Any]:
								return {
								    i: self.buffers[i] for i in range(self.num_buffers	) if i not in self.empty
								}



					def 						snake_case			(			self				:    List[Any]	)->   Tuple:
								for i in range(self.num_buffers	):
											if self.buffers[i] is None and i not in self.empty:
														lowerCamelCase__						:						Tuple						      =self.files[i].readline()

														if self.buffers[i] == "":
																	self.empty.add(lowerCamelCase	)
																	self.files[i].close()

								if len(self.empty	) == self.num_buffers:
											return False

								return True




					def 						snake_case			(			self				:    Dict,    lowerCamelCase				:    Union[str, Any]	)->   List[str]:
								lowerCamelCase__						:						Tuple						      =self.buffers[index]
								lowerCamelCase__						:						List[str]						      =None

								return value





class 			__SCREAMING_SNAKE_CASE      :


					'''simple docstring'''





					def __init__(			self				:    Union[str, Any],    lowerCamelCase				:    str	)->   List[str]:
								lowerCamelCase__						:						Tuple						      =merge_strategy



					def 						snake_case			(			self				:    Tuple,    lowerCamelCase				:    List[Any],    lowerCamelCase				:    List[str],    lowerCamelCase				:    List[Any]	)->   Union[str, Any]:
								lowerCamelCase__						:						str						      =FilesArray(self.get_file_handles(lowerCamelCase,    lowerCamelCase	)	)
								with open(lowerCamelCase,    '''w''',    lowerCamelCase	) as outfile:
											while buffers.refresh():
														lowerCamelCase__						:						List[Any]						      =self.merge_strategy.select(buffers.get_dict()	)
														outfile.write(buffers.unshift(lowerCamelCase	)	)




					def 						snake_case			(			self				:    Optional[int],    lowerCamelCase				:    Tuple,    lowerCamelCase				:    List[Any]	)->   str:
								lowerCamelCase__						:						Optional[int]						      ={}

								for i in range(len(lowerCamelCase	)	):
											lowerCamelCase__						:						Any						      =open(filenames[i],    '''r''',    lowerCamelCase	)  # noqa: UP015

								return files





class 			__SCREAMING_SNAKE_CASE      :


					'''simple docstring'''





					def __init__(			self				:    str,    lowerCamelCase				:    int	)->   Union[str, Any]:
								lowerCamelCase__						:						List[Any]						      =block_size



					def 						snake_case			(			self				:    Any,    lowerCamelCase				:    Dict,    lowerCamelCase				:    Union[str, Any]=None	)->   str:
								lowerCamelCase__						:						Tuple						      =self.get_number_blocks(lowerCamelCase,    self.block_size	)
								lowerCamelCase__						:						Union[str, Any]						      =FileSplitter(lowerCamelCase	)
								splitter.split(self.block_size,    lowerCamelCase	)

								lowerCamelCase__						:						Optional[int]						      =FileMerger(NWayMerge()	)
								lowerCamelCase__						:						Optional[int]						      =self.block_size / (num_blocks + 1)
								merger.merge(splitter.get_block_filenames(),    filename + '''.out''',    lowerCamelCase	)

								splitter.cleanup()




					def 						snake_case			(			self				:    List[Any],    lowerCamelCase				:    Tuple,    lowerCamelCase				:    int	)->   List[Any]:
								return (os.stat(lowerCamelCase	).st_size / block_size) + 1






def 	snake_case__  (						__lowerCamelCase							:       str      ):
			"""simple docstring"""
			if string[-1].lower() == "k":
						return int(string[:-1]      ) * 1024
			elif string[-1].lower() == "m":
						return int(string[:-1]      ) * 1024 * 1024
			elif string[-1].lower() == "g":
						return int(string[:-1]      ) * 1024 * 1024 * 1024
			else:
						return int(__lowerCamelCase      )






def 	snake_case__  (						):
			"""simple docstring"""
			lowerCamelCase__						:						Dict						      =argparse.ArgumentParser()
			parser.add_argument(
			    '''-m'''				,						'''--mem'''				,						help='''amount of memory to use for sorting'''				,						default='''100M'''      )
			parser.add_argument(
			    '''filename'''				,						metavar='''<filename>'''				,						nargs=1				,						help='''name of file to sort'''      )
			lowerCamelCase__						:						str						      =parser.parse_args()

			lowerCamelCase__						:						int						      =ExternalSort(parse_memory(args.mem      )      )
			sorter.sort(args.filename[0]      )


if __name__ == "__main__":
		main()









"""simple docstring"""






_lowercase					:					str 		=		{
    0: "underwear",
    1: "pants",
    2: "belt",
    3: "suit",
    4: "shoe",
    5: "socks",
    6: "shirt",
    7: "tie",
    8: "watch",
}

_lowercase					:					Dict 		=		[[1, 4], [2, 4], [3], [], [], [4], [2, 7], [3], []]

_lowercase					:					Union[str, Any] 		=		[0 for x in range(len(graph))]
_lowercase					:					Union[str, Any] 		=		[]






def 	snake_case__  (						__lowerCamelCase							:       Optional[int]				,						__lowerCamelCase							:       Dict      ):
			"""simple docstring"""
			lowerCamelCase__						:						int						      =1
			while stack:
						lowerCamelCase__						:						int						      =stack.pop()
						print(__lowerCamelCase				,						clothes[current_clothing]      )
						order += 1






def 	snake_case__  (						__lowerCamelCase							:       Optional[Any]				,						__lowerCamelCase							:       str				,						__lowerCamelCase							:       Tuple      ):
			"""simple docstring"""
			lowerCamelCase__						:						Dict						      =1
			for v in graph[u]:
						if not visited[v]:
									depth_first_search(__lowerCamelCase				,						__lowerCamelCase				,						__lowerCamelCase      )

			stack.append(__lowerCamelCase      )






def 	snake_case__  (						__lowerCamelCase							:       Optional[Any]				,						__lowerCamelCase							:       Optional[Any]      ):
			"""simple docstring"""
			for v in range(len(__lowerCamelCase      )      ):
						if not visited[v]:
									depth_first_search(__lowerCamelCase				,						__lowerCamelCase				,						__lowerCamelCase      )


if __name__ == "__main__":
		topological_sort(graph, visited)
		print(stack)
		print_stack(stack, clothes)




