#include <stdio.h>
#include <stdlib.h>

int main (void)
{
    const float approving_score = 7;
    float element, bigger = 0, smallest = 0, average = 0, amount = 0;
    float percentage_of_approved = 0, percentage_of_disapproved = 0;
    int n = 1, smallest_position = 0, bigger_position = 0;
    int approved = 0, disapproved = 0;
    do {
        printf ("Enter the value of the element %d: ", n);
        scanf ("%f", &element);
        if (element >= 0)
        {
            if (n==1 || element<smallest)
            {
                smallest = element;
                smallest_position = n;
            }
            if (n==1 || element>bigger)
            {
                bigger = element;
                bigger_position = n;
            }
            if (element < approving_score)
                disapproved++;
            else
                approved++;
            amount += element;
            n++;
        }
    } while (element >= 0);
    putchar ('\n');
    n--;
    if (n > 0)
    {
        average = amount / n;
        percentage_of_approved    = (float)100 * approved    / n;
        percentage_of_disapproved = (float)100 * disapproved / n;
    }
    printf ("Elements              : %d\n", n);
    printf ("Smallest              : %g\n", smallest);
    printf ("Smallest position     : %d\n", smallest_position);
    printf ("Bigger                : %g\n", bigger);
    printf ("Bigger position       : %d\n", bigger_position);
    printf ("Sum                   : %g\n", amount);
    printf ("Average               : %g\n", average);
    printf ("Arithmetic mean       : %g\n", average);
    printf ("Approved              : %d\n", approved);
    printf ("Percentage of approved: %g%%\n" , percentage_of_approved);
    printf ("Disapproved           : %d\n", disapproved);
    printf ("Percen. of disapproved: %g%%\n" , percentage_of_disapproved);
    putchar ('\n');
    system ("pause");
    return EXIT_SUCCESS;
}