



'''simple docstring'''





lowercase_	 =						'''Alexander Joslin'''

import operator as op

from .stack import Stack




def lowerCAmelCase						(__A):



     """simple docstring"""



     _a											=						{'*': op.mul, '/': op.truediv, '+': op.add, '-': op.sub}

     _a											=						Stack()
     _a											=						Stack()

     for i in equation:
          if i.isdigit():
               # RULE 1
               operand_stack.push(int(__A))
          elif i in operators:
               # RULE 2
               operator_stack.push(__A)
          elif i == ")":
               # RULE 4
               _a											=						operator_stack.peek()
               operator_stack.pop()
               _a											=						operand_stack.peek()
               operand_stack.pop()
               _a											=						operand_stack.peek()
               operand_stack.pop()

               _a											=						operators[opr](__A						,			__A)
               operand_stack.push(__A)

    # RULE 5
     return operand_stack.peek()


if __name__ == "__main__":
  lowercase_	 =						'''(5 + ((4 * 2) * (2 + 3)))'''
  # answer = 45
  print(F"""{equation} = {dijkstras_two_stack_algorithm(equation)}""")








'''simple docstring'''





import numpy as np
import qiskit




def lowerCAmelCase						(__A = 8						,			__A = None):



     """simple docstring"""



     _a											=						np.random.default_rng(seed=__A)

     # Roughly 25% of the qubits will contribute to the key.
     # So we take more than we need.
     _a											=						6 * key_len
     # Measurement basis for Alice's qubits.
     _a											=						rng.integers(2						,			size=__A)
     # The set of states Alice will prepare.
     _a											=						rng.integers(2						,			size=__A)
     # Measurement basis for Bob's qubits.
     _a											=						rng.integers(2						,			size=__A)

     # Quantum Circuit to simulate BB84
     _a											=						qiskit.QuantumCircuit(__A						,			name='''BB84''')

     # Alice prepares her qubits according to rules above.
     for index, _ in enumerate(__A):
          if alice_state[index] == 1:
               bbaa_circ.x(__A)
          if alice_basis[index] == 1:
               bbaa_circ.h(__A)
     bbaa_circ.barrier()

     # Bob measures the received qubits according to rules above.
     for index, _ in enumerate(__A):
          if bob_basis[index] == 1:
               bbaa_circ.h(__A)

     bbaa_circ.barrier()
     bbaa_circ.measure_all()

     # Simulate the quantum circuit.
     _a											=						qiskit.Aer.get_backend('''aer_simulator''')
     # We only need to run one shot because the key is unique.
     # Multiple shots will produce the same key.
     _a											=						qiskit.execute(__A						,			__A						,			shots=1						,			seed_simulator=__A)
     # Returns the result of measurement.
     _a											=						job.result().get_counts(__A).most_frequent()

     # Extracting the generated key from the simulation results.
     # Only keep measurement results where Alice and Bob chose the same basis.
     _a											=						''''''.join(
         [
             result_bit
             for alice_basis_bit, bob_basis_bit, result_bit in zip(
                 __A						,			__A						,			__A)
             if alice_basis_bit == bob_basis_bit
         ])

     # Get final key. Pad with 0 if too short, otherwise truncate.
     _a											=						gen_key[:key_len] if len(__A) >= key_len else gen_key.ljust(__A						,			'''0''')
     return key


if __name__ == "__main__":
  print(F"""The generated key is : {bbaa(8, seed=0)}""")
  from doctest import testmod

  testmod()



