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.
Both of the above
We cannot change the pointer ptr itself.

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C Programming
Use of functions

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

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