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Write a request page storage management simulation program, through the page replacement process simulation, to deepen understanding of the requested page storage management basic principles and processes. Requirements: 1. Memory blocks the keyboard to access the page sequence and allocated to the process 2. respectively OPT, FIFO and LRU page replacement algorithm (Note: For OPT algorithm, in case there are multiple pages optional, elimination of early entry into the first page). 3. Calculate the number of page faults and page fault rate. Test format is as follows: Input: Algorithms (1- OPT, 2- FIFO, 3- LRU) memory block sequence number of pages (page 1, page 2, page 3, ...) Output: change the page memory block load page loaded memory block list list of pages that have been hit 1-/2- page changes if hit/... number of page faults wherein: when the page is loaded into memory block change list page: 1 load the page memory block, memory block 2 load the page, the page is loaded ... memo