Functions : Introduction, Function Definition,Function Declaration,Function calls,Return values and their types,Categories of functions,Recursion,Storage classes,Passing arrays to functions .Pointers : Pointers and addresses, Pointer expressions and Pointer arithmetic, Pointers and Functions, void pointer, Pointers and arrays, Pointers and strings, Array of pointers, Pointers to pointers. Dynamic Memory Allocation : Malloc,Calloc,Realloc, free.