C Programming
Comment on the following?const int *ptr;

We can change the pointer as well as the value pointed by it.
We cannot change the value pointed by ptr.
We cannot change the pointer ptr itself.
Both of the above

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C Programming
Use of functions

Enhances the logical clarity of the program.
All of these
Helps to avoid repeated programming across programs.
Makes the debugging task easier.
Helps to avoid repeating a set of statements many times.

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