Q3. A bit-oracle is shown in Fig. 2. Q3.a. (5 pts.) To use the bit oracle in Figure 2 as a phase oracle, what should be the input state y ? Q3.b. (5 pts.) Assume the function f(x) in Fig. 2 is f(x)=1. And the oracle in Fig. 2 is used to construct the circuit in Fig. 3. With what probability the outcome of the measurement will be 0 ? (Hint: The circuit in Fig. 3 implements the Deutsch-Jozsa Algorithm.) Figure 3