I need help with this code in C++

Smart Insert 48 Writable Question 3 (14 points): A Circle object is defined by its center point (x, y) and radius r. Given the C++ class Circle interface below: 1. Implement the methods of the Circle class. 2. Write main() function to test (print the string representation) of the following Circle objects: a. (x, y) = (0, 0), radius = 6, using the class constructor b. (x, y) = (1, 1), radius = 10, using the class shift and reset methods #include using namespace std; const double PI = 3.141592653589793238463; class Circle { public: Circle(double x, double y, double r); // Constructor Circle(double r); // Constructor: Circle object centered at the origin double area(); // Area of a Circle object (A = ar?) double perimeter(); // Perimeter of a Circle object (P = 2tr) void shif(double deltax, double deltar);// Shift a Circle object by (deltax, delta) void reset(double r); // Mutator function: reset the radius of a Circle object void print(); // String representation of a Circle object private: double x, y; double radius