Multiple choice
Execute the circuit and measure. How likely is the outcome |11⟩?
const c = circuit(2); // Uniform superposition c.h(0); c.h(1); // Oracle: phase-flip |11> c.cz(0, 1); // Diffuser: reflect about the mean 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(|11⟩) — then run it.