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  1. #include<stdio.h>
  2.  
  3. int main()
  4. {
  5.     int n = 3,bt[20] = {30,2,2},wt[20],tat[20],avwt=0,avtat=0,i,j;
  6.     //printf("Enter total number of processes(maximum 20):");
  7.     //scanf("%d",&n);
  8.  
  9.     printf("\nEnter Process Burst Time\n");
  10.     for(i=0;i<n;i++)
  11.     {
  12.         printf("P[%d]:",i+1);
  13.         scanf("%d",&bt[i]);
  14.     }
  15.  
  16.     wt[0]=0;    //waiting time for first process is 0
  17.  
  18.     //calculating waiting time
  19.     for(i=1;i<n;i++)
  20.     {
  21.         wt[0]=0;
  22.         for(i=1;i<n;i++)
  23.             wt[i] =bt[i-1] + wt[i-1];
  24.     }
  25.  
  26.     printf("\nProcess\t\tBurst Time\tWaiting Time\tTurnaround Time");
  27.  
  28.     //calculating turnaround time
  29.     for(i=0;i<n;i++)
  30.     {
  31.         tat[i]=bt[i]+wt[i];
  32.         avwt+=wt[i];
  33.         avtat+=tat[i];
  34.         printf("\nP[%d]\t\t%d\t\t%d\t\t%d",i+1,bt[i],wt[i],tat[i]);
  35.     }
  36.  
  37.     avwt/=i;
  38.     avtat/=i;
  39.     printf("\n\nAverage Waiting Time:%d",avwt);
  40.     printf("\nAverage Turnaround Time:%d",avtat);
  41.  
  42.     return 0;
  43. }
  44.  
  45.  
Success #stdin #stdout 0s 10320KB
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stdin
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Standard input is empty
stdout
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Enter Process Burst Time
P[1]:P[2]:P[3]:
Process		Burst Time	Waiting Time	Turnaround Time
P[1]		30		0		30
P[2]		2		30		32
P[3]		2		32		34

Average Waiting Time:20
Average Turnaround Time:32
https://ideone.com/1l0g89
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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