Write a C or C++ program to perform the simulation:

Instruct the user to make the following selections:

D: Display date and time

U: Unblock the queue

P: Print the current status of process

T: Print the process time and exit

Option T can be only selected once. You need to use program to control it.

In option D, use the format mm dd year in the date and current time display.

In options U and P, you only need to print a string to show the process.