5b.c

#include <stdio.h>
int main(int argc, char const *argv[])
{
  int i, NOP, sum = 0, count = 0, y, quant, wt = 0, tat = 0, at[10], bt[10], temp[10];
  float avg_wt, avg_tat;
  printf("Total number of process in the system: ");
  scanf("%d", &NOP);
  y = NOP;
  for (i = 0; i < NOP; i++)
  {
    printf("\nEnter the Arrival and Burst time of the Process[%d]\n", i + 1);
    printf("Arrival time is: ");
    scanf("%d", &at[i]);
    printf("Burst time is: ");
    scanf("%d", &bt[i]);
    temp[i] = bt[i];
    printf("\n");
  }
  printf("Enter the Time Quantum for the process: ");
  scanf("%d", &quant);
  printf("\nProcess No \t\t Burst Time \t\t TAT \t\t Waiting Time ");
  for (sum = 0, i = 0; y != 0;)
  {
    if (temp[i] <= quant && temp[i] > 0)
    {
      sum = sum + temp[i];
      temp[i] = 0;
      count = 1;
    }
    else if (temp[i] > 0)
    {
      temp[i] = temp[i] - quant;
      sum = sum + quant;
    }
    if (temp[i] == 0 && count == 1)
    {
      y--;
      printf("\nProcess No[%d] \t\t %d\t\t\t %d\t\t\t %d", i + 1, bt[i], sum - at[i], sum - at[i] - bt[i]);
      wt = wt + sum - at[i] - bt[i];
      tat = tat + sum - at[i];
      count = 0;
    }
    if (i == NOP - 1)
    {
      i = 0;
    }
    else if (at[i + 1] <= sum)
    {
      i++;
    }
    else
    {
      i = 0;
    }
  }
  avg_wt = wt * 1.0 / NOP;
  avg_tat = tat * 1.0 / NOP;
  printf("\n Average Turn Around Time: \t%f", avg_wt);
  printf("\n Average Waiting Time: \t%f", avg_tat);
  printf("\n");
  return 0;
}