Basics of C++

1)What are the different storage classes in C?
Ans=>C has three types of storage: automatic, static and allocated.
          Variable having block scope and without static specifier have
           automatic storage duration.
          Variables with block scope, and with static specifier have static scope.
          Global variables (i.e, file scope) with or without the static specifier also
           have static scope.
2) How are pointer variables initialized?
Ans=>Pointer variable are initialized by one of the following two ways
          Static memory allocation
          Dynamic memory allocation