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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int n, i;
  5.     int bt[20], wt[20], tat[20];
  6.     float total_wt = 0, total_tat = 0;
  7.  
  8.     printf("Enter number of processes: ");
  9.     scanf("%d", &n);
  10.  
  11.     printf("Enter burst time for each process:\n");
  12.     for (i = 0; i < n; i++) {
  13.         printf("P%d: ", i + 1);
  14.         scanf("%d", &bt[i]);
  15.     }
  16.  
  17.     // Waiting time for first process is always 0
  18.     wt[0] = 0; 
  19.     // Calculate waiting time for all processes
  20.     for (i = 1; i < n; i++) {
  21.         wt[i] = wt[i - 1] + bt[i - 1];
  22.     }
  23.  
  24.     // Calculate turnaround time and totals
  25.     printf("\nProcess\tBurst Time\tWaiting Time\tTurnaround Time\n");
  26.     for (i = 0; i < n; i++) {
  27.         tat[i] = bt[i] + wt[i];
  28.         total_wt += wt[i];
  29.         total_tat += tat[i];
  30.         printf("P%d\t\t%d\t\t%d\t\t%d\n", i + 1, bt[i], wt[i], tat[i]);
  31.     }
  32.  
  33.     // Print averages
  34.     printf("\nAverage Waiting Time: %.2f", total_wt / n);
  35.     printf("\nAverage Turnaround Time: %.2f\n", total_tat / n);
  36.  
  37.     return 0;
  38. }
Success #stdin #stdout 0s 5272KB
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stdin
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Standard input is empty
stdout
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Enter number of processes: Enter burst time for each process:

Process	Burst Time	Waiting Time	Turnaround Time

Average Waiting Time: -nan
Average Turnaround Time: -nan
https://ideone.com/YqME92
language:
C (gcc 8.3)
created:
6 hours ago
visibility:
public

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