Qiskit, Quantum Computing, Grovers Algorithm, Quantum Algorithms, Algorithms.
from acting as a ‘0’ to acting as a ‘1’, and vice versa. It’s as simple as an X Gate. With an X Gate, we can get a ‘0’ to activate the MCX, and stop a ‘1’. So, if our hidden bit string contains a ‘0’, we can use an X Gate on the corresponding qubit, so that the only way it could activate the MCX