B1: Copy Oracle

Problem Statement

Implement the oracle $O$ on a quantum circuit $\mathrm{qc}$ with $2$ qubits acting on computational basis states as

where $\oplus$ denotes the XOR operator.

Constraints

• Changes in the global phase are ignored.
• The submitted code must follow the specified format:

from qiskit import QuantumCircuit, QuantumRegister
 
 
def solve() -> QuantumCircuit:
    x, y = QuantumRegister(1), QuantumRegister(1)
    qc = QuantumCircuit(x, y)
    # Write your code here:
 
    return qc

Sample Input

• $\ket{x}\ket{y} = \frac{1}{\sqrt{2}} (\ket{00} + \ket{10})$
  The implemented oracle $O$ should perform the following transformation.

Hints

qc.g(x)