/* bloodTests: Results of blood tests made on consecutive days

   Example:

        Enter test result: 9
        Enter test result: 23
        Enter test result: 4
        Enter test result: 3
        Enter test result: 10
        Enter test result: 1
        Enter test result: 2
        Enter test result: 2
        Enter test result: 27
        Enter test result: 2
        The closest to norm 15 was 10.
        The maximum difference between consecutive days was 25.
*/

#include <stdio.h>

int count,          /* Day                                         */
    NORM,           /* Normal level of lambda-hormone              */
    test_res,       /* Test result of the day                      */
    yesterday,      /* Test result of yesterday                    */
    CLOSEST,        /* Test result closest to the normal level     */
    max_delta = 0;  /* Maximum difference between consecutive days */

int main (void) {

   NORM  = 15;
   count = 10;

   printf("Enter test result: "); scanf("%d", &test_res);
   CLOSEST = test_res;  /* At the beginning, the first one is closest */

   count--;

   while (count > 0) {

        yesterday = test_res;

        printf("Enter test result: "); scanf("%d", &test_res);
        if (abs(test_res-NORM) < abs(CLOSEST-NORM)) CLOSEST = test_res;
        if (abs(test_res-yesterday) > max_delta)
            max_delta = (abs(test_res-yesterday));

        count--;
   }

   printf("The closest to norm %d was %d.\n", NORM, CLOSEST);
   printf("The maximum difference between consecutive days was %d.\n",
          max_delta);

   return(0);
}

   	Modify the above program to look for the hormone value
   	furthest away from the normal level instead of the nearest
   	value.