/*********************************************************
 * From C PROGRAMMING: A MODERN APPROACH, by K. N. King  *
 * Copyright (c) 1996 W. W. Norton & Company, Inc.       *
 * All rights reserved.                                  *
 * This program may be freely distributed for class use, *
 * provided that this copyright notice is retained.      *
 *********************************************************/

/* average.c (Chapter 9, page 157) */
/* Computes pairwise averages of three numbers */

#include <stdio.h>

float average(float a, float b)
{
  return (a + b) / 2;
}

main()
{
  float x, y, z;

  printf("Enter three numbers: ");
  scanf("%f%f%f", &x, &y, &z);
  printf("Average of %g and %g: %g\n", x, y, average(x, y));
  printf("Average of %g and %g: %g\n", y, z, average(y, z));
  printf("Average of %g and %g: %g\n", x, z, average(x, z));

  return 0;
}