Implement the circle class so that the following minimal test code can be satisfied. for 'c' type the system should display a circle. for 's' type the system displays a spray pattern just like those used in microsoft paint. int main() { const int size = 3; circle * arrcircle[size] = {nullptr}; /// create a circle whose serial number is 1001 and the radius is 20. /// type 'c' indicates circle type. arrcircle[0] = new circle('c', 1001, 20); /// create a spray whose serial number is 1002, the radius is 20, and the density is 30%. /// type 's' indicates spray type. arrcircle[1] = new circle('s', 1002, 25, 30); /// create a spray whose serial number is 1003, the radius is 40, and the density is 80%. arrcircle[2] = new circle('s', 1003, 40, 80); /// draw all shapes. the function uses a for loop to display the circles and sprays in arrcircle. drawall(arrcircle, size); /// delete all shapes deleteall(arrcircle, size); return 0; }