A software subsystem of an air-traffic control system is defined to manage a
queue of aircraft (AC) in an airport. The aircraft queue is managed by a pr
ocess which responds to three types of requests:
system boot used to start the system.
enqueue aircraft used to insert a new AC into the system.
dequeue aircraft used to remove an AC from the system.
AC’s have at least (but are not limited to having) the following properties
:
AC type:...