




"""simple docstring"""




def      __UpperCAmelCase     ( __UpperCamelCase	):
			return "".join([hex(_snake_case	)[2:].zfill(2	).upper() for byte in list(_snake_case	)]	)







def      __UpperCAmelCase     ( __UpperCamelCase	):
			# Check data validity, following RFC3548
			# https://www.ietf.org/rfc/rfc3548.txt
			if (len(_snake_case	) % 2) != 0:
						raise ValueError(
						    '''Base16 encoded data is invalid:
Data does not have an even number of hex digits.'''	)
			# Check the character set - the standard base16 alphabet
			# is uppercase according to RFC3548 section 6
			if not set(_snake_case	) <= set('''0123456789ABCDEF'''	):
						raise ValueError(
						    '''Base16 encoded data is invalid:
Data is not uppercase hex or it contains invalid characters.'''	)
			# For every two hexadecimal digits (= a byte), turn it into an integer.
			# Then, string the result together into bytes, and return it.
			return bytes(int(data[i] + data[i + 1]	,				16	) for i in range(0	,				len(_snake_case	)	,				2	)	)


if __name__ == "__main__":
			import doctest

			doctest.testmod()








import math

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

def 	SCREAMING_SNAKE_CASE_							(	_snake_case	:int = 3				)  ->     qiskit.result.counts.Counts:
   if isinstance(_snake_case	,   _snake_case				):
      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(_snake_case				) != 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(_snake_case	,   '''qr'''				)
   _A      =       ClassicalRegister(_snake_case	,   '''cr'''				)

   _A      =       QuantumCircuit(_snake_case	,   _snake_case				)

   _A      =       number_of_qubits

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

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

   # measure all the qubits
   quantum_circuit.measure(_snake_case	,   _snake_case				)
   # simulate with 10000 shots
   _A      =       Aer.get_backend('''qasm_simulator'''				)
   _A      =       execute(_snake_case	,   _snake_case	,   shots=10_000				)

   return job.result().get_counts(_snake_case				)


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



