






from __future__ import annotations







def 					lowercase__				(   __UpperCamelCase					)->				None:
      create_state_space_tree(__UpperCamelCase	,		[]	,		0	,		[0 for i in range(len(__UpperCamelCase					)					)]					)







def 					lowercase__				(   __UpperCamelCase	,		__UpperCamelCase	,		__UpperCamelCase	,		__UpperCamelCase	,		)->				None:

      if index == len(__UpperCamelCase					):
            print(__UpperCamelCase					)
            return

      for i in range(len(__UpperCamelCase					)					):
            if not index_used[i]:
                  current_sequence.append(sequence[i]					)
                  UpperCamelCase       						=      True
                  create_state_space_tree(__UpperCamelCase	,		__UpperCamelCase	,		index + 1	,		__UpperCamelCase					)
                  current_sequence.pop()
                  UpperCamelCase       						=      False
SCREAMING_SNAKE_CASE__											=     [3, 1, 2, 4]
generate_all_permutations(sequence)

SCREAMING_SNAKE_CASE__											=     ['A', 'B', 'C']






generate_all_permutations(sequence_a)








'''simple docstring'''

from __future__ import annotations







def 					lowercase__				(   __UpperCamelCase	,		__UpperCamelCase	,		__UpperCamelCase					)->				dict[str, float]:
      if (voltage, current, resistance).count(0					) != 1:
            raise ValueError("""One and only one argument must be 0"""					)
      if resistance < 0:
            raise ValueError("""Resistance cannot be negative"""					)
      if voltage == 0:
            return {"voltage": float(current * resistance					)}
      elif current == 0:
            return {"current": voltage / resistance}
      elif resistance == 0:
            return {"resistance": voltage / current}
      else:
            raise ValueError("""Exactly one argument must be 0"""					)


if __name__ == "__main__":
     import doctest

     doctest.testmod()
