B'Implement a quantum oracle on N qubits which checks whether the vector vec{x} is a palindrome (i.e., implements the function f( vec{x}) = 1 if vec{x} is a palindrome, and 0 otherwise). You have to implement an operation which takes the following inputs: and performs a transformation |x rangle|y rangle rightarrow |x rangle|y oplus f(x) rangle . The operation doesn 't have an output; its "output" is the state in which it leaves the qubits. Your code should have the following signature: '...