SJF NON_Preemtive

#include <stdio.h>
#include <string.h>

struct process
{
  char name[5];
  int burst;
};

int
main ()
{
  int size;
  int warr[size + 1];
  int carr[size+1];
  printf ("\nEnter the number of processes  : ");
  scanf ("%d", &size);
  struct process arr[size];
  struct process Process;
  printf ("\nEnter the process name and burst time  : \n");
  for (int i = 0; i < size; i++)
    {
      printf("\t-->\t");
      scanf ("%s", Process.name);
      scanf ("%d", &Process.burst);
      arr[i] = Process;
    }
    int pos,temp;
    int posarr[size+1];
    for(int i=0;i<size;i++){
        posarr[i]=i;
    }
  for(int i=0;i<size;i++)
    {
        pos=i;
        for(int j=i+1;j<size;j++)
        {
            if(arr[j].burst<arr[pos].burst)
            {
                pos=j;
            }
        }

        temp=arr[i].burst;
        arr[i].burst=arr[pos].burst;
        arr[pos].burst=temp;

        temp=posarr[i];
        posarr[i]=posarr[pos];
        posarr[pos]=temp;
    }
  float waiting = 0,complete=0;
  warr[0] = 0;
  for(int i=0;i<size;i++){
      warr[i+1] = warr[i]+arr[i].burst;
      waiting += warr[i];
  }

  for(int i=0;i<size;i++){
      carr[i] = arr[i].burst + warr[i];
      complete+=carr[i];
  }
  printf("Process\tBurst Time\tWaiting Time\tCompletion Time\n");
  for(int i=0;i<size;i++){
      printf("%s\t%d ms\t\t%d ms\t\t%d ms\n",arr[posarr[i]].name,arr[i].burst,warr[i],carr[i]);
  }


  printf ("\nAverage Waiting Time : %.2f ms", waiting / size);

  printf ("\nAverage Completion Time : %.2f ms\n", complete / size);
}