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page_1_new.cpp
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page_1_new.cpp
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#include<stdio.h>
#include<stdlib.h>
int page[100];
int frame[100];
int np,nf;
int fault;
int hit;
int ishit(int item)
{
hit=0;
for(int i=0;i<nf;i++)
{
if(frame[i]==item)
{
hit=1;
return hit;
}
}
return hit;
}
void display()
{
for(int i=0;i<nf;i++)
{
if(frame[i]!=-1)
{
printf("%d ",frame[i]);
}
}
printf("\n");
}
int main()
{
printf("Enter number of pages\n");
scanf("%d",&np);
printf("Enter number of frames\n");
scanf("%d",&nf);
printf("Enter the pages size\n");
for(int i=0;i<np;i++)
{
scanf("%d",&page[i]);
}
for(int i=0;i<nf;i++)
{
frame[i]=-1;
}
for(int i=0;i<np;i++)
{
printf("For page %d: ",page[i]);
if(ishit(page[i])==0)
{
for(int i=1;i<nf;i++)
{
frame[i-1]=frame[i];
}
frame[nf-1]=page[i];
fault++;
display();
}
else
{
printf("No page fault\n");
}
}
printf("Total page fault:%d\n",fault);
}