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multi_new.cpp
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multi_new.cpp
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#include<bits/stdc++.h>
void swapp(int *a,int *b)
{
int temp=*a;
*a=*b;
*b=temp;
}
int main()
{
int p[100],wt[100],burst[100],su[100];
float avg_wait=0.0,avg_tat=0.0;
int n;
printf("Enter number of processes\n");
scanf("%d",&n);
for(int i=0;i<n;i++)
{
p[i]=i;
printf("Enter the burst time for process %d: ",i);
scanf("%d",&burst[i]);
printf("Enter 0 if system process, 1 if user process\n");
scanf("%d",&su[i]);
}
for(int i=0;i<n-1;i++)
{
for(int j=0;j<n-1-i;j++)
{
if(su[j]>su[j+1])
{
swapp(&burst[j],&burst[j+1]);
swapp(&su[j],&su[j+1]);
swapp(&p[j],&p[j+1]);
}
}
}
wt[0]=0;
for(int i=0;i<n;i++)
{
wt[i+1]=wt[i]+burst[i];
avg_wait+=wt[i];
avg_tat+=wt[i]+burst[i];
}
printf("\nProcess No:\t System/User\t Burst\t wait time\t turn around time\t");
for(int i=0;i<n;i++)
{
printf("\n%d\t\t%d\t\t%d\t%d\t\t\t%d\t",p[i],su[i],burst[i],wt[i],burst[i]+wt[i]);
}
printf("\nAverage wait time: %.2f\n",avg_wait/n);
printf("\nAverage turnaround time: %.2f\n",avg_tat/n);
return 0;
}