References and Pointers

Question

Why is references and pointers usefull? What we can do with their memory address.

Answer 1

They allow you to indirectly manipulate the data they are associated with. This allows for better memory management, particularly when working with functions. Pointers are more efficient as c++ does less work when using them than by passing a value by reference or by passing the value itself.
There are also some situations where pointers must be used, such as dynamic memory allocation.

Answer 2

Ketan Pal
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