






"""simple docstring"""


from __future__ import annotations

import os
from collections.abc import Mapping

lowercase_				     =     tuple[int, int]


class 					snake_case		:


   '''simple docstring'''

   def __init__(	self :     Optional[Any],       _lowerCamelCase :     set[int],       _lowerCamelCase :     Mapping[EdgeT, int]  ):

     '''simple docstring'''
     __A									= vertices
     __A									= {
         (min(_lowerCamelCase  ), max(_lowerCamelCase  )): weight for edge, weight in edges.items()
     }


   def 				_SCREAMING_SNAKE_CASE				(	self :     List[str],       _lowerCamelCase :     EdgeT,       _lowerCamelCase :     int  ):

     '''simple docstring'''
     self.vertices.add(edge[0]  )
     self.vertices.add(edge[1]  )
     __A									= weight






   def 				_SCREAMING_SNAKE_CASE				(	self :     Tuple  ):

     '''simple docstring'''
     __A									= Graph({min(self.vertices  )},       {}  )
     __A									= 42
     __A									= 42
     __A									= 42
     __A									= 42

     while len(subgraph.vertices  ) < len(self.vertices  ):
       __A									= max(self.edges.values()  ) + 1
       for edge, weight in self.edges.items():
         if (edge[0] in subgraph.vertices) ^ (edge[1] in subgraph.vertices):
           if weight < min_weight:
             __A									= edge
             __A									= weight

       subgraph.add_edge(_lowerCamelCase,       _lowerCamelCase  )

     return subgraph





def 					lowerCAmelCase				(    __UpperCamelCase = "p107_network.txt" ):




  """simple docstring"""







  __A									= os.path.abspath(os.path.dirname(__UpperCamelCase ) )
  __A									= os.path.join(__UpperCamelCase		,       __UpperCamelCase )
  __A									= {}
  __A									= 42
  __A									= 42
  __A									= 42

  with open(__UpperCamelCase ) as f:
    __A									= f.read().strip().split('''\n''' )

  __A									= [line.split(''',''' ) for line in data]

  for edgea in range(1		,       len(__UpperCamelCase ) ):
    for edgea in range(__UpperCamelCase ):
      if adjaceny_matrix[edgea][edgea] != "-":
        __A									= int(adjaceny_matrix[edgea][edgea] )

  __A									= Graph(set(range(len(__UpperCamelCase ) ) )		,       __UpperCamelCase )

  __A									= graph.prims_algorithm()

  __A									= sum(graph.edges.values() )
  __A									= sum(subgraph.edges.values() )

  return initial_total - optimal_total


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












"""simple docstring"""


from __future__ import annotations

from typing import Any



def 					lowerCAmelCase				(    __UpperCamelCase ):




  """simple docstring"""







  if not postfix_notation:
    return 0

  __A									= {'''+''', '''-''', '''*''', '''/'''}
  __A									= []

  for token in postfix_notation:
    if token in operations:
      __A			,    __A									= stack.pop(), stack.pop()
      if token == "+":
        stack.append(a + b )
      elif token == "-":
        stack.append(a - b )
      elif token == "*":
        stack.append(a * b )
      else:
        if a * b < 0 and a % b != 0:
          stack.append(a // b + 1 )
        else:
          stack.append(a // b )
    else:
      stack.append(int(__UpperCamelCase ) )

  return stack.pop()


if __name__ == "__main__":
       import doctest

       doctest.testmod()




