


def      UpperCAmelCase__		(UpperCamelCase_							):



     """simple docstring"""






     snake_case											=							[]
     snake_case											=							[]
     snake_case											=							{
         '''^''': 3,
         '''*''': 2,
         '''/''': 2,
         '''%''': 2,
         '''+''': 1,
         '''-''': 1,
     }  # Priority of each operator
     snake_case											=							len(UpperCamelCase_							) if (len(UpperCamelCase_							) > 7) else 7

     # Print table header for output
     print(
         '''Symbol'''.center(8							)				,'''Stack'''.center(UpperCamelCase_							)				,'''Postfix'''.center(UpperCamelCase_							)				,sep=''' | '''				,)
     print('''-''' * (print_width * 3 + 7)							)

     for x in infix:
          if x.isalpha() or x.isdigit():
               post_fix.append(UpperCamelCase_							)  # if x is Alphabet / Digit, add it to Postfix
          elif x == "(":
               stack.append(UpperCamelCase_							)  # if x is "(" push to Stack
          elif x == ")":  # if x is ")" pop stack until "(" is encountered
               while stack[-1] != "(":
                    post_fix.append(stack.pop()							)  # Pop stack & add the content to Postfix
               stack.pop()
          else:
               if len(UpperCamelCase_							) == 0:
                    stack.append(UpperCamelCase_							)  # If stack is empty, push x to stack
               else:  # while priority of x is not > priority of element in the stack
                    while len(UpperCamelCase_							) > 0 and priority[x] <= priority[stack[-1]]:
                         post_fix.append(stack.pop()							)  # pop stack & add to Postfix
                    stack.append(UpperCamelCase_							)  # push x to stack

          print(
              x.center(8							)				,(''''''.join(UpperCamelCase_							)).ljust(UpperCamelCase_							)				,(''''''.join(UpperCamelCase_							)).ljust(UpperCamelCase_							)				,sep=''' | '''				,)  # Output in tabular format

     while len(UpperCamelCase_							) > 0:  # while stack is not empty
          post_fix.append(stack.pop()							)  # pop stack & add to Postfix
          print(
              ''' '''.center(8							)				,(''''''.join(UpperCamelCase_							)).ljust(UpperCamelCase_							)				,(''''''.join(UpperCamelCase_							)).ljust(UpperCamelCase_							)				,sep=''' | '''				,)  # Output in tabular format

     return "".join(UpperCamelCase_							)  # return Postfix as str
def      UpperCAmelCase__		(UpperCamelCase_							):



     """simple docstring"""






     snake_case											=							list(infix[::-1]							)  # reverse the infix equation

     for i in range(len(UpperCamelCase_							)							):
          if infix[i] == "(":
               snake_case											=							''')'''  # change "(" to ")"
          elif infix[i] == ")":
               snake_case											=							'''('''  # change ")" to "("

     return (infix_2_postfix(''''''.join(UpperCamelCase_							)							))[
         ::-1
     ]  # call infix_2_postfix on Infix, return reverse of Postfix


if __name__ == "__main__":
 _SCREAMING_SNAKE_CASE     :					int      =       input("\nEnter an Infix Equation = ")  # Input an Infix equation
 _SCREAMING_SNAKE_CASE     :					Optional[Any]      =       ''.join(Infix.split())  # Remove spaces from the input
 print("\n\t", Infix, "(Infix) -> ", infix_2_prefix(Infix), "(Prefix)")






"""simple docstring"""




import math







class     lowercase:



     def 			lowercase__  (							self     ,				__SCREAMING_SNAKE_CASE     ,				__SCREAMING_SNAKE_CASE   )		->     int:







         """simple docstring"""



         a__		=			0.0
         a__		=			0.0
         for i in range(len(__SCREAMING_SNAKE_CASE   )   ):
             da += math.pow((sample[i] - weights[0][i])     ,				2   )
             da += math.pow((sample[i] - weights[1][i])     ,				2   )
             return 0 if da > da else 1
         return 0




     def 			lowercase__  (							self     ,				__SCREAMING_SNAKE_CASE     ,				__SCREAMING_SNAKE_CASE     ,				__SCREAMING_SNAKE_CASE     ,				__SCREAMING_SNAKE_CASE   )		->     list[list[int | float]]:







         """simple docstring"""



         for i in range(len(__SCREAMING_SNAKE_CASE   )   ):
             weights[j][i] += alpha * (sample[i] - weights[j][i])
         return weights




def     __magic_name__		(					)     ->						None:
    # Training Examples ( m, n )
    a__		=			[[1, 1, 0, 0], [0, 0, 0, 1], [1, 0, 0, 0], [0, 0, 1, 1]]

    # weight initialization ( n, C )
    a__		=			[[0.2, 0.6, 0.5, 0.9], [0.8, 0.4, 0.7, 0.3]]

    # training
    a__		=			SelfOrganizingMap()
    a__		=			3
    a__		=			0.5

    for _ in range(UpperCamelCase     ):
        for j in range(len(UpperCamelCase     )     ):
            # training sample
            a__		=			training_samples[j]

            # Compute the winning vector
            a__		=			self_organizing_map.get_winner(UpperCamelCase							,		UpperCamelCase     )

            # Update the winning vector
            a__		=			self_organizing_map.update(UpperCamelCase							,		UpperCamelCase							,		UpperCamelCase							,		UpperCamelCase     )

    # classify test sample
    a__		=			[0, 0, 0, 1]
    a__		=			self_organizing_map.get_winner(UpperCamelCase							,		UpperCamelCase     )

    # results
    print(f'Clusters that the test sample belongs to : {winner}'     )
    print(f'Weights that have been trained : {weights}'     )


# running the main() function
if __name__ == "__main__":
    main()


