C program to change value of ith element from top of the stack.

Here is a C program to change ith value of stack.
program: 0:00
program output: 05:53
program explanation: 7:30

Different definitions for this program can be:
* C program to change value of ith element from top of the stack.
* C program to change value of ith element from top of the stack using array.
* C program to perform CHANGE operation in stack.
* C program to perform change operation in stack using array.