Answer / Nikhil Agarwal

The copy constructor and the assignment operator are both used for creating copies of objects in C++, but they have some key differences:n1) Calling: The copy constructor is called during object creation when an existing object is passed as a parameter or returned by a function, while the assignment operator is explicitly called using the assignment operator (=).n2) Initialization: The copy constructor initializes new objects from existing ones, while the assignment operator modifies existing objects.n3) Performance: For performance-critical applications, it's often beneficial to provide custom implementations for both to optimize memory allocation and avoid unnecessary copies.

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