A tricky prob to tackle
- Prompt user for integers using a loop
- Stop prompting when a negative integer was entered
- Print out the largest and smallest numbers entered so far
- Print 0 as largest and smallest number when 1st number is -ve
/*OUTPUT
Enter number: 32
Enter number: 23
Enter number: 89
Enter number: 2
Enter number: -2
Smallest number: 2
Largest number: 89
*/