
"""simple docstring"""




import qiskit



def        _lowerCamelCase ( __a = 2    ):
		SCREAMING_SNAKE_CASE_   = qubits

		# Using Aer's simulator
		SCREAMING_SNAKE_CASE_   = qiskit.Aer.get_backend('''aer_simulator'''    )

		# Creating a Quantum Circuit acting on the q register
		SCREAMING_SNAKE_CASE_   = qiskit.QuantumCircuit(__a,							__a    )

		# Adding a H gate on qubit 0 (now q0 in superposition)
		circuit.h(0    )

		for i in range(1,							__a    ):
				# Adding CX (CNOT) gate
				circuit.cx(i - 1,							__a    )

		# Mapping the quantum measurement to the classical bits
		circuit.measure(list(range(__a    )    ),							list(range(__a    )    )    )

		# Now measuring any one qubit would affect other qubits to collapse
		# their super position and have same state as the measured one.

		# Executing the circuit on the simulator
		SCREAMING_SNAKE_CASE_   = qiskit.execute(__a,							__a,							shots=1_000    )

		return job.result().get_counts(__a    )


if __name__ == "__main__":
						print(f'''Total count for various states are: {quantum_entanglement(3)}''')

"""simple docstring"""




from __future__ import annotations



def        _lowerCamelCase ( __a,							__a    ):
		SCREAMING_SNAKE_CASE_						 = 0
		SCREAMING_SNAKE_CASE_						 = len(__a    ) - 1

		while i < j:
				if nums[i] + nums[j] == target:
						return [i, j]
				elif nums[i] + nums[j] < target:
						SCREAMING_SNAKE_CASE_						 = i + 1
				else:
						SCREAMING_SNAKE_CASE_						 = j - 1

		return []


if __name__ == "__main__":
						import doctest

						doctest.testmod()
						print(f'''{two_pointer([2, 7, 11, 15], 9) = }''')