Explain unions in data structure 

Define structure. Explain self referential structure ? 

Explain Structure ?  Define briefly about Memory representation of structure and structure initialization.

Define polynomials. Explain Abstract data type in polynomial ?

What are pointers? How do we use pointers to different data types?

Define string. Explain string handling functions

Explain unions in data structure 

Why do we need dynamic memory allocation techniques? Explain the functions available for allocating memory dynamically.