Write a program that asks the user to enter integers as the width and length of a rectangle that should be stored in the variables 'a' and 'b' respectively. There are also two integer pointers named ptrA and ptrB. Assign the values of 'a' and 'b' to ptrA and ptrB respectively, Calculate the area and perimeter of the rectangle by using these pointers.

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A: Please find the answer below :

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A:

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Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.