



"""simple docstring"""





from __future__ import annotations

from typing import Any
def        a__     (				lowerCAmelCase__				):
      if not postfix_notation:
            return 0

      UpperCAmelCase_      			=							{"+", "-", "*", "/"}
      UpperCAmelCase_      			=							[]

      for token in postfix_notation:
            if token in operations:
                  UpperCAmelCase_			,   UpperCAmelCase_      			=							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(lowerCAmelCase__				)				)

      return stack.pop()


if __name__ == "__main__":
  import doctest

  doctest.testmod()









"""simple docstring"""





from __future__ import annotations

from collections import namedtuple
from dataclasses import dataclass
@dataclass
class 				lowercase__       :







       '''simple docstring'''


       UpperCamelCase						=					42
       UpperCamelCase						=					None
       UpperCamelCase						=					None



lowerCamelCase       	=						namedtuple("""CoinsDistribResult""", """moves excess""")
def        a__     (				lowerCAmelCase__				):

      if root is None:
            return 0

      # Validation
      def count_nodes(lowerCAmelCase__				) -> int:
            if node is None:
                  return 0

            return count_nodes(node.left				) + count_nodes(node.right				) + 1

      def count_coins(lowerCAmelCase__				) -> int:
            if node is None:
                  return 0

            return count_coins(node.left				) + count_coins(node.right				) + node.data

      if count_nodes(lowerCAmelCase__				) != count_coins(lowerCAmelCase__				):
            raise ValueError("The nodes number should be same as the number of coins"				)

      # Main calculation
      def get_distrib(lowerCAmelCase__				) -> CoinsDistribResult:

            if node is None:
                  return CoinsDistribResult(0     ,      1				)

            UpperCAmelCase_			,   UpperCAmelCase_      			=							get_distrib(node.left				)
            UpperCAmelCase_			,   UpperCAmelCase_      			=							get_distrib(node.right				)

            UpperCAmelCase_      			=							1 - left_distrib_excess
            UpperCAmelCase_      			=							1 - right_distrib_excess

            UpperCAmelCase_      			=							(
                left_distrib_moves
                + right_distrib_moves
                + abs(lowerCAmelCase__				)
                + abs(lowerCAmelCase__				)
            )
            UpperCAmelCase_      			=							node.data - coins_to_left - coins_to_right

            return CoinsDistribResult(lowerCAmelCase__     ,      lowerCAmelCase__				)

      return get_distrib(lowerCAmelCase__				)[0]


if __name__ == "__main__":
  import doctest

  doctest.testmod()




