执行下面程序后，输出结果是（ ）。
struct Device { int id; int state;}; void reset(Device d) { d.state = 0;} void start(Device &d) { d.state += 1;} int main() { Device d{7, 2}; reset(d); start(d); cout << d.id << " " << d.state; return 0;}执行下面程序后，输出结果是（ ）。
struct Device { int id; int state;}; void reset(Device d) { d.state = 0;} void start(Device &d) { d.state += 1;} int main() { Device d{7, 2}; reset(d); start(d); cout << d.id << " " << d.state; return 0;}