(c) Does an integer pointer store an integer itself or something else? (d) What is the purpose of pointers? What do they allow us to do? What would happen if we didn't have pointers?

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Concept of Pointer Parameter

Pointers are the special variable that stores the variable address, instead of storing the variable value. Pointer is a powerful feature of a programming language. A pointer is mostly used to save memory space and improve execution time.