hacktoberfest/rr.c at main · csajce/hacktoberfest · GitHub

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#include<stdio.h>

int main()
{
      int i, limit, total = 0, x, counter = 0, time_quantum,p[10]={1,2,3,4,5,6,7,8,9,10};
      int wait_time = 0, turnaround_time = 0, arrival_time[10], burst_time[10], temp[10];
      float average_wait_time, average_turnaround_time;
      printf("Enter Total Number of Processes:");
      scanf("%d", &limit);
      x = limit;
      for(i = 0; i < limit; i++)
      {
            printf("\nProcess[%d]\n", i + 1);

            printf("Arrival Time:");

            scanf("%d", &arrival_time[i]);

            printf("Burst Time:");

            scanf("%d", &burst_time[i]);

            temp[i] = burst_time[i];
      }

      printf("\nEnter Time Quantum:");
      scanf("%d", &time_quantum);
      printf("\nProcess ID\tBurst Time\t Turnaround Time\t Waiting Time\n");
      for(total = 0, i = 0; x != 0;)
      {
            if(temp[i] <= time_quantum && temp[i] > 0)
            {
                  total = total + temp[i];
                  temp[i] = 0;
                  counter = 1;
            }
            else if(temp[i] > 0)
            {
                  temp[i] = temp[i] - time_quantum;
                  total = total + time_quantum;
            }
            if(temp[i] == 0 && counter == 1)
            {
                  x--;
                  printf("\nProcess[%d]\t \t%d\t \t%d\t \t%d\t", i + 1, burst_time[i], total - arrival_time[i], total - arrival_time[i] - burst_time[i]);
                  wait_time = wait_time + total - arrival_time[i] - burst_time[i];
                  turnaround_time = turnaround_time + total - arrival_time[i];
                  counter = 0;
            }
            if(i == limit - 1)
            {
                  i = 0;
            }
            else if(arrival_time[i + 1] <= total)
            {
                  i++;
            }
            else
            {
                  i = 0;
            }
      }
printf(" \n \n");

printf("  ");
for(i=0;i<limit;i++)
printf("---------------");

printf("\n");
printf("  |");
for(i=0;i<limit;i++)
printf("      p%d      |",p[i]);

printf("\n");
printf("   ");

for(i=0;i<limit;i++)
printf("---------------");
printf("               ");

      average_wait_time = wait_time * 1.0 / limit;
      average_turnaround_time = turnaround_time * 1.0 / limit;
      printf("\n\nAverage Waiting Time:\t%f", average_wait_time);
      printf("\nAvg Turnaround Time:\t%f\n", average_turnaround_time);
      return 0;
}