





"""simple docstring"""





from __future__ import annotations

from typing import Any





class 				_lowerCamelCase					(				lowerCamelCase__       ):
						pass





class 				_lowerCamelCase					:


						def __init__(self      ,							__a						)       ->      None:
								UpperCamelCase      =		data
								UpperCamelCase      =		None


						def __iter__(self						)       ->      List[str]:
								UpperCamelCase      =		self
								UpperCamelCase      =		[]
								while node:
										if node in visited:
												raise ContainsLoopError
										visited.append(lowercase_						)
										yield node.data
										UpperCamelCase      =		node.next_node




						@property
						def 			snake_case_      (self						)       ->      bool:






								try:
										list(self						)
										return False
								except ContainsLoopError:
										return True


if __name__ == "__main__":
						lowerCAmelCase__   	=	Node(1)
						lowerCAmelCase__   	=	Node(2)
						lowerCAmelCase__   	=	Node(3)
						lowerCAmelCase__   	=	Node(4)
						print(root_node.has_loop)  # False
						lowerCAmelCase__   	=	root_node.next_node
						print(root_node.has_loop)  # True

						lowerCAmelCase__   	=	Node(5)
						lowerCAmelCase__   	=	Node(6)
						lowerCAmelCase__   	=	Node(5)
						lowerCAmelCase__   	=	Node(6)
						print(root_node.has_loop)  # False

						lowerCAmelCase__   	=	Node(1)
						print(root_node.has_loop)  # False









import math

import numpy as np
import qiskit
from qiskit import Aer, ClassicalRegister, QuantumCircuit, QuantumRegister, execute




def 			UpperCAmelCase__				(			_A      : int = 3							):





  '''simple docstring'''







  if isinstance(_A	,      _A							):
    raise TypeError('''number of qubits must be a integer.'''							)
  if number_of_qubits <= 0:
    raise ValueError('''number of qubits must be > 0.'''							)
  if math.floor(_A							) != number_of_qubits:
    raise ValueError('''number of qubits must be exact integer.'''							)
  if number_of_qubits > 10:
    raise ValueError('''number of qubits too large to simulate(>10).'''							)

  a__  =QuantumRegister(_A	,      '''qr'''							)
  a__  =ClassicalRegister(_A	,      '''cr'''							)

  a__  =QuantumCircuit(_A	,      _A							)

  a__  =number_of_qubits

  for i in range(_A							):
    quantum_circuit.h(number_of_qubits - i - 1							)
    counter -= 1
    for j in range(_A							):
      quantum_circuit.cp(np.pi / 2 ** (counter - j)	,      _A	,      _A							)

  for k in range(number_of_qubits // 2							):
    quantum_circuit.swap(_A	,      number_of_qubits - k - 1							)

  # measure all the qubits
  quantum_circuit.measure(_A	,      _A							)
  # simulate with 10000 shots
  a__  =Aer.get_backend('''qasm_simulator'''							)
  a__  =execute(_A	,      _A	,      shots=1_00_00							)

  return job.result().get_counts(_A							)


if __name__ == "__main__":
       print(
           f"""Total count for quantum fourier transform state is: \
    {quantum_fourier_transform(3)}"""
       )
