Multiple choice
Run this circuit, then measure. With what probability do you get |110⟩?
const c = circuit(3); c.x(0); c.x(2); // Controlled increment: flip q1 when q0=1 and q2=1 (carry), then flip q2 when q0=1 c.ccx(0, 2, 1); c.cx(0, 2); return c;
Commit your prediction for P(|110⟩) — then run it.