Explain Type- defined structure and array of structures ?

Define string. Explain string handling functions

Explain unions in data structure 

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

Explain declaration, initialization of One dimensional and Two dimensional arrays.

Define polynomials. Explain polynomial representation ?

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

Define polynomials. Explain Abstract data type in polynomial ?