Multiple choice
This circuit is measured once in the computational basis. What is P(|01⟩)?
const c = circuit(2); c.h(0); c.h(1); // Oracle: phase-flip |01⟩ (qubit 0 = 0, qubit 1 = 1) c.x(0); c.cz(0, 1); c.x(0); // Diffuser c.h(0); c.h(1); c.x(0); c.x(1); c.cz(0, 1); c.x(0); c.x(1); c.h(0); c.h(1); return c;
Commit your prediction for P(|01⟩) — then run it.