1)Write a program to find the difference between second maximum element and minimum element in an array.

If second maximum element does not exist, Assign second maximum element as 0.

Input:-

1)Read the size of an array.

2)Read the array elements.

output:-

o/p=second maximum element - minimum element in an array.

eg:-

5

4 9 6 3 2

second maximum element=6

             minimum element=2

o/p=  6-2 

o/p=   4.