#include bitsstdc++husing namespace std;class ComplexNumprivate float real; float imag;public ComplexNumfloat _realfloat _imag; ~ComplexNum; void print; ComplexNum& operator=ComplexNum& c; friend void

The above code defines a class called "ComplexNum" which represents a complex number with a real and imaginary part. It has a constructor and destructor, as well as a print function to display the value of the complex number.

It also includes an overloaded assignment operator to allow for easy assignment of one complex number to another, and a friend function called "display" which can access the private members of the class.

However, the main function is empty, so there is no actual implementation or testing of the ComplexNum class