



"""simple docstring"""




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


class 	a__		:
   _lowerCamelCase       				=					'block_{0}.dat'


   def __init__(				self   :				Dict,  lowerCAmelCase   :				Union[str, Any]      )     ->							Tuple:
         lowercase	:   List[str]											= filename
         lowercase	:   Union[str, Any]											= []


   def 							lowercase					(				self   :				List[Any],  lowerCAmelCase   :				Optional[int],  lowerCAmelCase   :				List[Any]      )     ->							List[Any]:
         lowercase	:   List[Any]											= self.BLOCK_FILENAME_FORMAT.format(lowerCAmelCase      )
         with open(lowerCAmelCase,  'w'      ) as file:
               file.write(lowerCAmelCase      )
         self.block_filenames.append(lowerCAmelCase      )


   def 							lowercase					(				self   :				int      )     ->							Optional[Any]:
         return self.block_filenames


   def 							lowercase					(				self   :				Optional[int],  lowerCAmelCase   :				int,  lowerCAmelCase   :				List[Any]=None      )     ->							Optional[int]:
         lowercase	:   str											= 0
         with open(self.filename      ) as file:
               while True:
                     lowercase	:   Any											= 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 							lowercase					(				self   :				Tuple      )     ->							Any:
         map(os.remove,  self.block_filenames      )




class 	a__		:


   def 							lowercase					(				self   :				Optional[int],  lowerCAmelCase   :				Optional[int]      )     ->							Any:
         lowercase	:   Optional[Any]											= -1
         lowercase	:   Any											= None

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

         return min_index




class 	a__		:


   def __init__(				self   :				str,  lowerCAmelCase   :				List[Any]      )     ->							Tuple:
         lowercase	:   Any											= files
         lowercase	:   Tuple											= set()
         lowercase	:   List[str]											= len(lowerCAmelCase      )
         lowercase	:   List[str]											= {i: None for i in range(self.num_buffers      )}


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


   def 							lowercase					(				self   :				Optional[int]      )     ->							Union[str, Any]:
         for i in range(self.num_buffers      ):
               if self.buffers[i] is None and i not in self.empty:
                     lowercase	:   Optional[Any]											= 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 							lowercase					(				self   :				Optional[int],  lowerCAmelCase   :				int      )     ->							int:
         lowercase	:   Optional[Any]											= self.buffers[index]
         lowercase	:   Optional[Any]											= None

         return value




class 	a__		:


   def __init__(				self   :				Union[str, Any],  lowerCAmelCase   :				int      )     ->							List[str]:
         lowercase	:   Any											= merge_strategy


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






   def 							lowercase					(				self   :				List[str],  lowerCAmelCase   :				List[str],  lowerCAmelCase   :				List[str]      )     ->							str:
         lowercase	:   Optional[int]											= {}

         for i in range(len(lowerCAmelCase      )      ):
               lowercase	:   int											= open(filenames[i],  'r',  lowerCAmelCase      )  # noqa: UP015

         return files




class 	a__		:


   def __init__(				self   :				Dict,  lowerCAmelCase   :				Any      )     ->							Dict:
         lowercase	:   Any											= block_size


   def 							lowercase					(				self   :				Tuple,  lowerCAmelCase   :				Optional[Any],  lowerCAmelCase   :				Union[str, Any]=None      )     ->							Optional[int]:
         lowercase	:   Any											= self.get_number_blocks(lowerCAmelCase,  self.block_size      )
         lowercase	:   List[Any]											= FileSplitter(lowerCAmelCase      )
         splitter.split(self.block_size,  lowerCAmelCase      )

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

         splitter.cleanup()






   def 							lowercase					(				self   :				Any,  lowerCAmelCase   :				int,  lowerCAmelCase   :				Tuple      )     ->							Union[str, Any]:
         return (os.stat(lowerCAmelCase      ).st_size / block_size) + 1




def 	lowercase__  (      _UpperCAmelCase					)  ->      Any:






      '''simple docstring'''


      if string[-1].lower() == "k":
            return int(string[:-1]					) * 10_24
      elif string[-1].lower() == "m":
            return int(string[:-1]					) * 10_24 * 10_24
      elif string[-1].lower() == "g":
            return int(string[:-1]					) * 10_24 * 10_24 * 10_24
      else:
            return int(_UpperCAmelCase					)


def 	lowercase__  (      )  ->      int:






      '''simple docstring'''


      lowercase	:   Optional[int]											= 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'					)
      lowercase	:   List[str]											= parser.parse_args()

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


if __name__ == "__main__":
     main()





"""simple docstring"""




from __future__ import annotations

from collections import defaultdict
from dataclasses import dataclass


@dataclass
class 	a__		:
   _lowerCamelCase       				=					42
   _lowerCamelCase       				=					None
   _lowerCamelCase       				=					None




def 	lowercase__  (      )  ->      TreeNode:






      '''simple docstring'''


      return TreeNode(3						,   TreeNode(9					)						,   TreeNode(20						,   TreeNode(15					)						,   TreeNode(7					)					)					)


def 	lowercase__  (      _UpperCAmelCase					)  ->      list[int]:






      '''simple docstring'''


      def depth_first_search(
          _UpperCAmelCase						,   _UpperCAmelCase						,   _UpperCAmelCase					) -> None:
            if not root:
                  return

            if depth == len(_UpperCAmelCase					):
                  right_view.append(root.val					)

            depth_first_search(root.right						,   depth + 1						,   _UpperCAmelCase					)
            depth_first_search(root.left						,   depth + 1						,   _UpperCAmelCase					)

      lowercase	:   list											= []
      if not root:
            return right_view

      depth_first_search(_UpperCAmelCase						,   0						,   _UpperCAmelCase					)
      return right_view


def 	lowercase__  (      _UpperCAmelCase					)  ->      list[int]:






      '''simple docstring'''


      def depth_first_search(
          _UpperCAmelCase						,   _UpperCAmelCase						,   _UpperCAmelCase					) -> None:
            if not root:
                  return

            if depth == len(_UpperCAmelCase					):
                  left_view.append(root.val					)

            depth_first_search(root.left						,   depth + 1						,   _UpperCAmelCase					)
            depth_first_search(root.right						,   depth + 1						,   _UpperCAmelCase					)

      lowercase	:   list											= []
      if not root:
            return left_view

      depth_first_search(_UpperCAmelCase						,   0						,   _UpperCAmelCase					)
      return left_view


def 	lowercase__  (      _UpperCAmelCase					)  ->      list[int]:






      '''simple docstring'''


      def breadth_first_search(_UpperCAmelCase						,   _UpperCAmelCase					) -> None:
            lowercase	:   List[str]											= [(root, 0)]
            lowercase	:   List[Any]											= defaultdict(_UpperCAmelCase					)

            while queue:
                  lowercase	:   Union[str, Any]											= queue.pop(0					)
                  lowercase						,     lowercase	:   str											= first

                  lookup[hd].append(node.val					)

                  if node.left:
                        queue.append((node.left, hd - 1)					)
                  if node.right:
                        queue.append((node.right, hd + 1)					)

            for pair in sorted(lookup.items()						,   key=lambda _UpperCAmelCase					: each[0]					):
                  top_view.append(pair[1][0]					)

      lowercase	:   list											= []
      if not root:
            return top_view

      breadth_first_search(_UpperCAmelCase						,   _UpperCAmelCase					)
      return top_view


def 	lowercase__  (      _UpperCAmelCase					)  ->      list[int]:






      '''simple docstring'''


      from collections import defaultdict

      def breadth_first_search(_UpperCAmelCase						,   _UpperCAmelCase					) -> None:
            lowercase	:   Any											= [(root, 0)]
            lowercase	:   Dict											= defaultdict(_UpperCAmelCase					)

            while queue:
                  lowercase	:   str											= queue.pop(0					)
                  lowercase						,     lowercase	:   List[Any]											= first
                  lookup[hd].append(node.val					)

                  if node.left:
                        queue.append((node.left, hd - 1)					)
                  if node.right:
                        queue.append((node.right, hd + 1)					)

            for pair in sorted(lookup.items()						,   key=lambda _UpperCAmelCase					: each[0]					):
                  bottom_view.append(pair[1][-1]					)

      lowercase	:   list											= []
      if not root:
            return bottom_view

      breadth_first_search(_UpperCAmelCase						,   _UpperCAmelCase					)
      return bottom_view


if __name__ == "__main__":
     import doctest

     doctest.testmod()
