






"""simple docstring"""



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






class 				__SCREAMING_SNAKE_CASE    :
							snake_case_  =				'block_{0}.dat'


							def __init__(      self   :    Optional[int]      ,     snake_case   :    Optional[Any]				):
													'''simple docstring'''





													A__    :	List[Any]			=	filename
													A__    :	Any			=	[]


							def     _UpperCamelCase							(      self   :    Optional[int]      ,     snake_case   :    Tuple      ,     snake_case   :    Dict				):
													'''simple docstring'''





													A__    :	List[str]			=	self.BLOCK_FILENAME_FORMAT.format(snake_case				)
													with open(snake_case      ,     """w"""				) as file:
																			file.write(snake_case				)
													self.block_filenames.append(snake_case				)


							def     _UpperCamelCase							(      self   :    Any				):
													'''simple docstring'''





													return self.block_filenames


							def     _UpperCamelCase							(      self   :    Any      ,     snake_case   :    Union[str, Any]      ,     snake_case   :    Optional[Any]=None				):
													'''simple docstring'''





													A__    :	List[str]			=	0
													with open(self.filename				) as file:
																			while True:
																									A__    :	Optional[Any]			=	file.readlines(snake_case				)

																									if lines == []:
																															break

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

																									self.write_block("""""".join(snake_case				)      ,     snake_case				)
																									i += 1


							def     _UpperCamelCase							(      self   :    Union[str, Any]				):
													'''simple docstring'''





													map(os.remove      ,     self.block_filenames				)






class 				__SCREAMING_SNAKE_CASE    :


							def     _UpperCamelCase							(      self   :    Optional[Any]      ,     snake_case   :    List[str]				):
													'''simple docstring'''





													A__    :	Tuple			=	-1
													A__    :	str			=	None

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

													return min_index






class 				__SCREAMING_SNAKE_CASE    :


							def __init__(      self   :    Dict      ,     snake_case   :    Any				):
													'''simple docstring'''





													A__    :	int			=	files
													A__    :	Any			=	set()
													A__    :	Optional[int]			=	len(snake_case				)
													A__    :	Optional[int]			=	{i: None for i in range(self.num_buffers				)}


							def     _UpperCamelCase							(      self   :    Dict				):
													'''simple docstring'''





													return {
													    i: self.buffers[i] for i in range(self.num_buffers				) if i not in self.empty
													}


							def     _UpperCamelCase							(      self   :    Optional[Any]				):
													'''simple docstring'''





													for i in range(self.num_buffers				):
																			if self.buffers[i] is None and i not in self.empty:
																									A__    :	int			=	self.files[i].readline()

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

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

													return True


							def     _UpperCamelCase							(      self   :    str      ,     snake_case   :    int				):
													'''simple docstring'''





													A__    :	Union[str, Any]			=	self.buffers[index]
													A__    :	Dict			=	None

													return value






class 				__SCREAMING_SNAKE_CASE    :


							def __init__(      self   :    Optional[Any]      ,     snake_case   :    int				):
													'''simple docstring'''





													A__    :	Dict			=	merge_strategy


							def     _UpperCamelCase							(      self   :    List[Any]      ,     snake_case   :    List[str]      ,     snake_case   :    Optional[Any]      ,     snake_case   :    Tuple				):
													'''simple docstring'''





													A__    :	Dict			=	FilesArray(self.get_file_handles(snake_case      ,     snake_case				)				)
													with open(snake_case      ,     """w"""      ,     snake_case				) as outfile:
																			while buffers.refresh():
																									A__    :	Optional[int]			=	self.merge_strategy.select(buffers.get_dict()				)
																									outfile.write(buffers.unshift(snake_case				)				)


							def     _UpperCamelCase							(      self   :    List[Any]      ,     snake_case   :    Any      ,     snake_case   :    List[str]				):
													'''simple docstring'''





													A__    :	List[Any]			=	{}

													for i in range(len(snake_case				)				):
																			A__    :	List[Any]			=	open(filenames[i]      ,     """r"""      ,     snake_case				)  # noqa: UP015

													return files






class 				__SCREAMING_SNAKE_CASE    :


							def __init__(      self   :    int      ,     snake_case   :    Any				):
													'''simple docstring'''





													A__    :	Optional[Any]			=	block_size


							def     _UpperCamelCase							(      self   :    Optional[int]      ,     snake_case   :    str      ,     snake_case   :    List[Any]=None				):
													'''simple docstring'''





													A__    :	List[str]			=	self.get_number_blocks(snake_case      ,     self.block_size				)
													A__    :	Optional[int]			=	FileSplitter(snake_case				)
													splitter.split(self.block_size      ,     snake_case				)

													A__    :	Union[str, Any]			=	FileMerger(NWayMerge()				)
													A__    :	Dict			=	self.block_size / (num_blocks + 1)
													merger.merge(splitter.get_block_filenames()      ,     filename + """.out"""      ,     snake_case				)

													splitter.cleanup()


							def     _UpperCamelCase							(      self   :    Optional[int]      ,     snake_case   :    Any      ,     snake_case   :    str				):
													'''simple docstring'''





													return (os.stat(snake_case				).st_size / block_size) + 1




def   _lowerCAmelCase		(				UpperCAmelCase__							:       str   )		->Any:
						if string[-1].lower() == "k":
												return int(string[:-1]   ) * 1_0_2_4
						elif string[-1].lower() == "m":
												return int(string[:-1]   ) * 1_0_2_4 * 1_0_2_4
						elif string[-1].lower() == "g":
												return int(string[:-1]   ) * 1_0_2_4 * 1_0_2_4 * 1_0_2_4
						else:
												return int(UpperCAmelCase__   )




def   _lowerCAmelCase		(				)		->Union[str, Any]:
						A__    :	Union[str, Any]			=	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"""   )
						A__    :	Optional[Any]			=	parser.parse_args()

						A__    :	str			=	ExternalSort(parse_memory(args.mem   )   )
						sorter.sort(args.filename[0]   )


if __name__ == "__main__":
						main()














"""simple docstring"""



def   _lowerCAmelCase		(				UpperCAmelCase__							:       int = 4_0_0_0_0_0_0   )		->int:
						A__    :	int			=	1
						A__    :	List[str]			=	2
						A__    :	Union[str, Any]			=	0
						while j <= n:
												if j % 2 == 0:
																		total += j
												A__	,	A__    :	str			=	j, i + j

						return total


if __name__ == "__main__":
						print(F'{solution() = }')






