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- #include<stdio.h>
- void main()
- {
- int bt[20],p[20],wt[20],tat[20],i,j,n,total=0,pos,temp;
- float avg_wt,avg_tat;
- printf("Enter number of process:");
- scanf("%d",&n);
- printf("\nEnter Burst Time:\n");
- for(i=0; i<n; i++)
- {
- printf("p%d:",i+1);
- scanf("%d",&bt[i]);
- p[i]=i+1;
- }
- for(i=0; i<n; i++)
- {
- pos=i;
- for(j=i+1; j<n; j++)
- {
- if(bt[j]<bt[pos])
- pos=j;
- }
- temp=bt[i];
- bt[i]=bt[pos];
- bt[pos]=temp;
- temp=p[i];
- p[i]=p[pos];
- p[pos]=temp;
- }
- wt[0]=0;
- for(i=1; i<n; i++)
- {
- wt[i]=0;
- for(j=0; j<i; j++)
- wt[i]+=bt[j];
- total+=wt[i];
- }
- avg_wt=(float)total/n;
- total=0;
- printf("\nProcess\t Burst Time \tWaiting Time\tTurnaround Time");
- for(i=0; i<n; i++)
- {
- tat[i]=bt[i]+wt[i];
- total+=tat[i];
- printf("\np%d\t\t %d\t\t %d\t\t\t%d",p[i],bt[i],wt[i],tat[i]);
- }
- avg_tat=(float)total/n;
- printf("\n\nAverage Waiting Time=%f",avg_wt);
- printf("\nAverage Turnaround Time=%f\n",avg_tat);
- }
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