please help me with this problem. Write a program in C no gui and implement a vi

Question

please help me with this problem. Write a program in C no gui and implement a virtual memory simulator based on Demand Paging.
The following algorithms will be implemented: FIFO, OPT and LRU.
I want to simulate the execution of each of these algorithms on a hypothetical computer having only four physical frames (numbered from 0 to 3), assuming that the single process that is running has a virtual memory of eight frames (numbered from 0 to 7).
The algorithms will be simulated based on a reference string (a sequence of pages that are to be accessed) that will be either read from the keyboard or randomly generated.
The program will be menu-based and the menu will have the following options:

Menu
0

Explanation / Answer

#include void FIFO(char [],char [],int,int); void lru(char [],char [],int,int); void opt(char [],char [],int,int); int main() { int ch,YN=1,i,l,f; char F[10],s[25]; clrscr(); //system("clear"); printf(" Enter the no of empty frames: "); scanf("%d",&f); printf(" Enter the length of the string: "); scanf("%d",&l); printf(" Enter the string: "); scanf("%s",s); for(i=0;i

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