Task $2$

Write a program that implements the banker's algorithm. Requirements for your program:

The Max and Allocation matrix and Available vector must be inputted from a file.

You should first verify the system is in safe state. So you should display the need matrix and at least one safe sequence.

Then input a Request vector by keyboard, and decide whether can grant it$.$ If the request can be granted, please display the safe sequence. If the request cannot be granted, please display the reason, such as the request is larger than the need, or the request is larger than the available, or cannot find a safe sequence.