program5_01.c

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/* Program 5.1 Averaging ten numbers without storing the numbers */
#include <stdio.h>

int main(void)
{
  int number = 0;                      /* Stores a number             */
  int count = 10;                      /* Number of values to be read */
  long sum = 0L;                       /* Sum of the numbers          */
  float average = 0.0f;                /* Average of the numbers      */

  /* Read the ten numbers to be averaged */
  for(int i = 0; i < count; i ++)
  {
    printf("Enter grade: ");
    scanf("%d", &number);              /* Read a number */
    sum += number;                     /* Add it to sum */
  }

  average = (float)sum/count;          /* Calculate the average */

  printf("\nAverage of the ten numbers entered is: %f\n", average);
  return 0;
}