OPENQASM 3.1;
include "stdgates.inc";
// Subroutines inlined: qubits by reference, classical arguments by value,
// values returned.
qubit[3] q;
def layer(qubit a, qubit b, float[64] t) { h a; cx a, b; rz(t) b; }
def half(float[64] x) -> float[64] { return x / 2; }
def twice(int[32] k) -> int[32] { return 2 * k; }
layer(q[0], q[1], half(pi / 2));
layer(q[1], q[2], pi / twice(4));