




import unittest

from transformers import is_torch_available
from transformers.testing_utils import require_torch


if is_torch_available():
  import torch

  from transformers.generation import DisjunctiveConstraint


@require_torch
class     UpperCamelCase_   (			unittest.TestCase					):

    '''simple docstring'''






    def 	SCREAMING_SNAKE_CASE							(      self				:     Dict)						->Tuple:





           '''simple docstring'''

           A__							=   [[1, 2, 4], [1, 2, 3, 4]]
           A__							=   DisjunctiveConstraint(UpperCAmelCase__)
           self.assertTrue(isinstance(dc.token_ids ,			UpperCAmelCase__))

           with self.assertRaises(UpperCAmelCase__):
                  DisjunctiveConstraint(torch.LongTensor([[1, 2, 4], [1, 2, 3]]))

           with self.assertRaises(UpperCAmelCase__):
                  DisjunctiveConstraint([torch.LongTensor([1, 2, 4]), torch.LongTensor([1, 2, 3, 4, 5])])


    def 	SCREAMING_SNAKE_CASE							(      self				:     int)						->str:





           '''simple docstring'''

           A__							=   [[1, 2], [1, 2, 3, 4]]

           with self.assertRaises(UpperCAmelCase__):
                  DisjunctiveConstraint(UpperCAmelCase__)  # fails here


    def 	SCREAMING_SNAKE_CASE							(      self				:     Any)						->str:





           '''simple docstring'''

           A__							=   [[1, 2, 3], [1, 2, 4]]

           A__							=   DisjunctiveConstraint(UpperCAmelCase__)

           A__			,							A__			,							A__							=   dc.update(1)
           A__							=   stepped is True and completed is False and reset is False
           self.assertTrue(UpperCAmelCase__)
           self.assertTrue(not dc.completed)
           self.assertTrue(dc.current_seq == [1])

           A__			,							A__			,							A__							=   dc.update(2)
           A__							=   stepped is True and completed is False and reset is False
           self.assertTrue(UpperCAmelCase__)
           self.assertTrue(not dc.completed)
           self.assertTrue(dc.current_seq == [1, 2])

           A__			,							A__			,							A__							=   dc.update(3)
           A__							=   stepped is True and completed is True and reset is False
           self.assertTrue(UpperCAmelCase__)
           self.assertTrue(dc.completed)  # Completed!
           self.assertTrue(dc.current_seq == [1, 2, 3])





    def 	SCREAMING_SNAKE_CASE							(      self				:     Optional[Any])						->Tuple:





           '''simple docstring'''

           A__							=   [[1, 2, 3], [1, 2, 4, 5], [1, 2, 5]]

           A__							=   DisjunctiveConstraint(UpperCAmelCase__)

           A__			,							A__			,							A__							=   dc.update(1)
           self.assertTrue(not dc.completed)
           self.assertTrue(dc.current_seq == [1])

           A__			,							A__			,							A__							=   dc.update(2)
           self.assertTrue(not dc.completed)
           self.assertTrue(dc.current_seq == [1, 2])

           A__			,							A__			,							A__							=   dc.update(4)
           self.assertTrue(not dc.completed)
           self.assertTrue(dc.current_seq == [1, 2, 4])

           A__			,							A__			,							A__							=   dc.update(5)
           self.assertTrue(dc.completed)  # Completed!
           self.assertTrue(dc.current_seq == [1, 2, 4, 5])

           dc.reset()

           A__			,							A__			,							A__							=   dc.update(1)
           self.assertTrue(not dc.completed)
           self.assertTrue(dc.remaining() == 3)
           self.assertTrue(dc.current_seq == [1])

           A__			,							A__			,							A__							=   dc.update(2)
           self.assertTrue(not dc.completed)
           self.assertTrue(dc.remaining() == 2)
           self.assertTrue(dc.current_seq == [1, 2])

           A__			,							A__			,							A__							=   dc.update(5)
           self.assertTrue(dc.completed)  # Completed!
           self.assertTrue(dc.remaining() == 0)
           self.assertTrue(dc.current_seq == [1, 2, 5])








def SCREAMING_SNAKE_CASE    (	lowercase_						)       ->	str:



       """simple docstring"""

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

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

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

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

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

       return "".join(lowercase_						)  # return Postfix as str







def SCREAMING_SNAKE_CASE    (	lowercase_						)       ->	Optional[Any]:



       """simple docstring"""

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

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

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


if __name__ == "__main__":
  _lowerCamelCase     :		List[str]								=       input("""\nEnter an Infix Equation = """)  # Input an Infix equation
  _lowerCamelCase     :		Dict								=       """""".join(Infix.split())  # Remove spaces from the input
  print("""\n\t""", Infix, """(Infix) -> """, infix_2_prefix(Infix), """(Prefix)""")


