find the error in during the picture in order to make this program work

#include #include "circle.h" using namespace std; int main() double users_radius;// value to store users given radius value; Circle * first_circle; // define a pointer to a circle first_circle = new Circle();// allocate memory for the object and call the constructor cout>users_radus; first_circle->set_rad(users_radius); coutcompute_circumference() #ifndef CIRCLE_H #define CIRCLE_H using namespace std; class Circle { private: double radius;//radius of the circle double * area;//area of the circle double * circumference;//circumferencee of the circle static const double pi=3.1415;// the value of pi public: Circle() {radius=0; area=new double; area=0; circumference= new double;} void set_rad(double rad) {radius = rad;}; double compute_area() {'area = (pi*pow(radius, 2.0));return *area;}; double compute_circumference {*(circumference+1)=2*pi*radius;return *circumference;} Circle(); #endif #include #include "circle.h" using namespace std; int main() double users_radius;// value to store users given radius value; Circle * first_circle; // define a pointer to a circle first_circle = new Circle();// allocate memory for the object and call the constructor cout>users_radus; first_circle->set_rad(users_radius); coutcompute_circumference() #ifndef CIRCLE_H #define CIRCLE_H using namespace std; class Circle { private: double radius;//radius of the circle double * area;//area of the circle double * circumference;//circumferencee of the circle static const double pi=3.1415;// the value of pi public: Circle() {radius=0; area=new double; area=0; circumference= new double;} void set_rad(double rad) {radius = rad;}; double compute_area() {'area = (pi*pow(radius, 2.0));return *area;}; double compute_circumference {*(circumference+1)=2*pi*radius;return *circumference;} Circle(); #endif