class NumberOps
{
// Operations on an array of integers a, 
// dealing with the first n integers only.

 public static void printall(int [] a,int n)
 // Print the first n contents of array a
 {
  int i;
  for(i=0; i<n; i++)
     System.out.print(a[i]+" ");
  System.out.println();
 }
 
 public static int biggest(int [] a,int n)
 // find the biggest of the first n contents of array a
 {
  int i,current=a[0];
  for(i=1; i<n; i++)
     if(a[i]>current)
        current=a[i];
  return current;
 }

 public static int smallest(int [] a,int n)
 // find the smallest of the first n contents of array a
 {
  int i,current=a[0];
  for(i=1; i<n; i++)
     if(a[i]<current)
        current=a[i];
  return current;
 }

 public static int posBiggest(int [] a,int n)
 // find the position of the biggest of the first n contents of array a
 {
  int i,pos=0;
  for(i=1; i<n; i++)
     if(a[i]>a[pos])
        pos=i;
  return pos;
 }

 public static int posSmallest(int [] a,int n)
 // find the position of the smallest of the first n contents of array a
 {
  int i,pos=0;
  for(i=1; i<n; i++)
     if(a[i]<a[pos])
        pos=i;
  return pos;
 }

 public static double average(int [] a,int n)
 // find the average of the first n contents of array a
 {
  int i,sum=0;
  for(i=0; i<n; i++)
     sum+=a[i];
  return (double)sum/n;
 }

}