03-10-2011 Usage of Logical Operators(smallest and highest number)

/*Program takes values from user and tells which one was highest and which one was smallest*/

#include<stdio.h>

#include<conio.h>

main()

{

      int num = 0, smallest=0, highest = 0, counter = 0;

      while (num != -1)

      {

            printf("Please enter the number or -1 to see results: ");

            scanf("%d",&num);

            if ((smallest >= num && num !=-1) || (counter==0))

            {

               smallest = num;

            }

            if ((highest <= num && num != -1)||(counter == 0))

            {

                 highest = num;

            }

            counter++;

      }

      printf("\nSmallest entered value is: %d \nand the highest entered value is: %d \n\nSo the range is %d",smallest,highest,(highest-smallest));

      getche();

}