

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






class     __magic_name__     :
 UpperCAmelCase				     =    '''block_{0}.dat'''


 def __init__(    self		:			List[str]      ,    lowerCAmelCase__		:			int     )     ->   List[str]:
   UpperCAmelCase          =	filename
   UpperCAmelCase          =	[]


 def _UpperCamelCase						(    self		:			Union[str, Any]      ,    lowerCAmelCase__		:			List[str]      ,    lowerCAmelCase__		:			Optional[int]     )     ->   Union[str, Any]:
   UpperCAmelCase          =	self.BLOCK_FILENAME_FORMAT.format(lowercase__     )
   with open(lowercase__      ,    "w"     ) as file:
     file.write(lowercase__     )
   self.block_filenames.append(lowercase__     )


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


 def _UpperCamelCase						(    self		:			int      ,    lowerCAmelCase__		:			Optional[int]      ,    lowerCAmelCase__		:			Optional[int]=None     )     ->   int:
   UpperCAmelCase          =	0
   with open(self.filename     ) as file:
     while True:
       UpperCAmelCase          =	file.readlines(lowercase__     )

       if lines == []:
         break

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

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


 def _UpperCamelCase						(    self		:			str     )     ->   Tuple:
   map(os.remove      ,    self.block_filenames     )






class     __magic_name__     :


 def _UpperCamelCase						(    self		:			Dict      ,    lowerCAmelCase__		:			str     )     ->   int:
   UpperCAmelCase          =	-1
   UpperCAmelCase          =	None

   for i in range(len(lowercase__     )     ):
     if min_str is None or choices[i] < min_str:
       UpperCAmelCase          =	i

   return min_index






class     __magic_name__     :


 def __init__(    self		:			Any      ,    lowerCAmelCase__		:			List[str]     )     ->   Optional[Any]:
   UpperCAmelCase          =	files
   UpperCAmelCase          =	set()
   UpperCAmelCase          =	len(lowercase__     )
   UpperCAmelCase          =	{i: None for i in range(self.num_buffers     )}


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


 def _UpperCamelCase						(    self		:			int     )     ->   Optional[int]:
   for i in range(self.num_buffers     ):
     if self.buffers[i] is None and i not in self.empty:
       UpperCAmelCase          =	self.files[i].readline()

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

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

   return True


 def _UpperCamelCase						(    self		:			Optional[Any]      ,    lowerCAmelCase__		:			Optional[int]     )     ->   Tuple:
   UpperCAmelCase          =	self.buffers[index]
   UpperCAmelCase          =	None

   return value






class     __magic_name__     :


 def __init__(    self		:			Any      ,    lowerCAmelCase__		:			Dict     )     ->   str:
   UpperCAmelCase          =	merge_strategy


 def _UpperCamelCase						(    self		:			str      ,    lowerCAmelCase__		:			int      ,    lowerCAmelCase__		:			List[Any]      ,    lowerCAmelCase__		:			Union[str, Any]     )     ->   List[str]:
   UpperCAmelCase          =	FilesArray(self.get_file_handles(lowercase__      ,    lowercase__     )     )
   with open(lowercase__      ,    "w"      ,    lowercase__     ) as outfile:
     while buffers.refresh():
       UpperCAmelCase          =	self.merge_strategy.select(buffers.get_dict()     )
       outfile.write(buffers.unshift(lowercase__     )     )


 def _UpperCamelCase						(    self		:			Optional[Any]      ,    lowerCAmelCase__		:			int      ,    lowerCAmelCase__		:			int     )     ->   Any:
   UpperCAmelCase          =	{}

   for i in range(len(lowercase__     )     ):
     UpperCAmelCase          =	open(filenames[i]      ,    "r"      ,    lowercase__     )  # noqa: UP015

   return files






class     __magic_name__     :


 def __init__(    self		:			Optional[int]      ,    lowerCAmelCase__		:			List[Any]     )     ->   Optional[Any]:
   UpperCAmelCase          =	block_size


 def _UpperCamelCase						(    self		:			Optional[int]      ,    lowerCAmelCase__		:			str      ,    lowerCAmelCase__		:			Union[str, Any]=None     )     ->   List[Any]:
   UpperCAmelCase          =	self.get_number_blocks(lowercase__      ,    self.block_size     )
   UpperCAmelCase          =	FileSplitter(lowercase__     )
   splitter.split(self.block_size      ,    lowercase__     )

   UpperCAmelCase          =	FileMerger(NWayMerge()     )
   UpperCAmelCase          =	self.block_size / (num_blocks + 1)
   merger.merge(splitter.get_block_filenames()      ,    filename + ".out"      ,    lowercase__     )

   splitter.cleanup()


 def _UpperCamelCase						(    self		:			str      ,    lowerCAmelCase__		:			Optional[Any]      ,    lowerCAmelCase__		:			Optional[int]     )     ->   Dict:
   return (os.stat(lowercase__     ).st_size / block_size) + 1

def   _lowerCAmelCase(						__A      ):






  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(_UpperCAmelCase      )
def   _lowerCAmelCase(						):
  UpperCAmelCase          =	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"      )
  UpperCAmelCase          =	parser.parse_args()

  UpperCAmelCase          =	ExternalSort(parse_memory(args.mem      )      )
  sorter.sort(args.filename[0]      )


if __name__ == "__main__":
      main()








def 		__snake_case						(    _UpperCAmelCase       ,			_UpperCAmelCase				):
					"""simple docstring"""






					for index, item in enumerate(_UpperCAmelCase				):
										if item == target:
															return index
					return -1





def 		__snake_case						(    _UpperCAmelCase       ,			_UpperCAmelCase       ,			_UpperCAmelCase       ,			_UpperCAmelCase				):
					"""simple docstring"""






					if not (0 <= high < len(_UpperCAmelCase				) and 0 <= low < len(_UpperCAmelCase				)):
										raise Exception('Invalid upper or lower bound!'				)
					if high < low:
										return -1
					if sequence[low] == target:
										return low
					if sequence[high] == target:
										return high
					return rec_linear_search(_UpperCAmelCase       ,			low + 1       ,			high - 1       ,			_UpperCAmelCase				)


if __name__ == "__main__":
		__magic_name__       =     input('''Enter numbers separated by comma:\n''').strip()
		__magic_name__       =     [int(item.strip()) for item in user_input.split(''',''')]

		__magic_name__       =     int(input('''Enter a single number to be found in the list:\n''').strip())
		__magic_name__       =     linear_search(sequence, target)
		if result != -1:
				print(F"""linear_search({sequence}, {target}) = {result}""")
		else:
				print(F"""{target} was not found in {sequence}""")






