In the apartment next to yours there is an annoying talking parrot. The regulations of your flat prohibit making noise before 7am and after 8pm.
Define a function with type:
parrot_trouble : bool -> int -> bool optionwhere the first parameter tells whether the parrot is talking or not, while the second parameter represents the current time (from 0 to 23).
The function returns Some true whenever the parrot is talking at a time
prohibited by the regulations.
The special value None must be used when the input time is outside the range
0..23.