Predict the output
On the seeded simulator (seed 4735), this circuit runs for 1024 shots. About how many come out |01⟩? Estimate P(|01⟩) × 1024 and pick the closest option.
// Start at |00>, flip qubit 1 to get |01>, Hadamard qubit 0 to get // (|01> + |11>)/sqrt(2), then CNOT(0->1) turns |11> into |10>, giving // the symmetric triplet (|01> + |10>)/sqrt(2). const c = circuit(2); c.x(1); c.h(0); c.cx(0, 1); return c;
Commit your prediction for counts of |01⟩ over 1024 shots — then run it.