This code is a C program that implements the Optimal...

April 23, 2024 at 05:54 AM

#include<stdio.h>
void main()
{
	int n,i,j,in[20],fl[90],f,out[90],c[90],x=1,pf=0,min=0;
	printf("enter the size of string:");
	scanf("%d",&n);
	printf("enter the string elements:");
	for(i=0;i<n;i++)
	{
		scanf("%d",&in[i]);
		fl[i]=0;
	}
	printf("enter the no.of frames:");
	scanf("%d",&f);
	for(i=0;i<f;i++)
	{
		out[i]=-1;
		printf("%d\t",out[i]);	
	}
	printf("\n");
	for(i=0;i<f;i++)
	{
		c[i]=0;
	}
	for(i=0;i<n;i++)
	{
		for(j=0;j<f;j++)
		{
			if(out[j]==in[i])
			{
				fl[i]=1;
				c[j]=x;
				x++;
			}
		}
		if(fl[i]==0)
		{
			if(i<f)
			{
				out[i]=in[i];
				c[i]=x;
				x++;
				pf++;
			}
			else
			{
				for(j=1;j<f;j++)
				{
					if(c[min]>c[j])
					{
						min=j;
					}
				}
				out[min]=in[i];
				c[min]=x;
				x++;
				pf++;
			}
		}
		for(j=0;j<f;j++)
		{
			printf("%d\t",out[j]);
		}
		printf("\tpage faults:%d\n",pf);
	}
}

This code is a C program that implements the Optimal Page Replacement algorithm for simulating page faults in a memory management system. The program takes input for the size of the string, the string elements, and the number of frames. It then simulates the page replacement process based on the Optimal algorithm and calculates the number of page faults that occur during the process.

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