/* Program Title: lab8_jumpstart
 * Author: Slobodan Vucetic
 * Date: 10/19/2006
 *
 * Requirements: 
 *  Ask a user to enter up to 20 nonnegative integers. 
 *  If user enters a negative number, stop the entering process.
 *  After user enters 20 numbers, stop the entering process.
 *  Calculate sum of all entered numbers
 *  Calculate average of all entered numbers
 *  Find the smallest entered number
 * 
 * Test Plan: 
 *  Test by entering several different combinations of integers. 
 *  Check if entering a negative number stops the entering process
 *  Check if the entering process is stopped after user enters 20 numbers
 *  Check if the results are correct
 */

/* Preprocessor directives */
#include<stdio.h>

/* Main function */
int main(void)
{ 
   int scores[20];
   int I, flag; 
   int array_size, array_sum, array_avg, array_min;

   /* A procedure for populating the array */
   i = 0;
   flag = 0;
   do {
      printf(“\n Enter an integer >= 0 (if integer < 0, stop)> “);
      scanf(“%d”,&scores[i]);
      printf(“... you entered %d”, scores[i]);

      if (scores[i] > 0)
         i = i+1;
      else
         flag = 1;
   } while(i < 20 && flag == 0);
   array_size = i;

   printf(“\n\n***Size of the array is %d”, array_size);

   /* A procedure that sums all entered integers */
   array_sum = 0;
   for (i=0; i < array_size; i = i+1) 
      array_sum = array_sum + scores[i];

   printf(“\n*** Sum of array elements is %d”, array_sum);

   /* Calculate the average of the entered integers */
   array_avg = array_sum/array_size;

   printf(“\n***Average of the array elements is %d”, array_size);

   /* Find the smallest entered integer */
   array_min = scores[0];
   for (i=1; i < array_size; i++) {
      if (scores[i] < array_min)
         array_min = scores[i];
   }

   printf(“\n***The smallest element of the array is %d \n\n”, array_min);

   return(0);
}