In programming assignment #4 you are to write a simulation of a page
replacement memory management system. You will be implementing least
recently used (LRU) and rst-in- rst-out (FIFO) page replacement schemes
(Chapter 8, pg 369).
Your program should read from a le to get information about the se-
quence of page faults that occur. I will provide a simple example of such a
text le. It consists simply of one integer value per line, which repr