/* Program to compute max and average of an array */

#include <stdio.h>
#define  SIZE 8

void   read_array  (double list[], int n);
double get_max     (const double list[], int n);
double get_average (const double list[], int n);

int main() {
  double array[SIZE];
  read_array(array, SIZE);
  double max = get_max(array, SIZE);
  double ave = get_average(array, SIZE);
  printf("\nmax = %.2f, average = %.2f\n", max, ave);
  return 0;     
}

/* function to read an array of n elements */

void read_array (double list[], int n) {
  int i;
  printf("Enter %d real numbers\n", n);
  printf("Separated by spaces or newlines\n");
  printf("\n>");
  for (i = 0;  i < n;  ++i)
    scanf("%lf", &list[i]);
}

/* Returns the max in an array of n elements */

double get_max(const double list[], int n) {
  int i;
  double max = list[0];
  for (i=1; i<n; ++i)
    if (list[i] > max) max = list[i];
  return max;     
}

/* Returns the average of n array elements */

double get_average(const double list[], int n)
{
  int i;
  double sum = 0;
  for (i=0; i<n; ++i)
    sum += list[i];
  return (sum/n);     
}