



"""simple docstring"""







from collections import defaultdict

def 				UpperCamelCase_    (    lowerCAmelCase__      :				int						)						->   List[Any]:

  """simple docstring"""




  lowerCAmelCase_   :				Any								= 1
  lowerCAmelCase_   :				Tuple								= True
  for v in tree[start]:
    if v not in visited:
      ret += dfs(lowerCAmelCase__						)
  if ret % 2 == 0:
    cuts.append(lowerCAmelCase__						)
  return ret

def 				UpperCamelCase_    (    )						->   Dict:

  """simple docstring"""




  dfs(1						)


if __name__ == "__main__":
     lowercase__		:				Union[str, Any]          =	1_0, 9
     lowercase__		:				Optional[int]          =	defaultdict(list)
     lowercase__		:				dict[int, bool]          =	{}
     lowercase__		:				list[int]          =	[]
     lowercase__		:				Optional[Any]          =	0
     lowercase__		:				Any          =	[(2, 1), (3, 1), (4, 3), (5, 2), (6, 1), (7, 2), (8, 6), (9, 8), (1_0, 8)]
     for u, v in edges:
          tree[u].append(v)
          tree[v].append(u)
     even_tree()
     print(len(cuts) - 1)






from __future__ import annotations

from math import pi, sqrt




def       _snake_case	(   lowerCAmelCase							:   float   , lowerCAmelCase							:   float	):
		"""simple docstring"""







		if inductance <= 0:
				raise ValueError("Inductance cannot be 0 or negative"	)

		elif capacitance <= 0:
				raise ValueError("Capacitance cannot be 0 or negative"	)

		else:
				return (
				    "Resonant frequency",
				    float(1 / (2 * pi * (sqrt(inductance * capacitance	)))	),
				)


if __name__ == "__main__":
		import doctest

		doctest.testmod()
