#include<iostream.h>
#include<conio.h>

class calculate_area
{
    public:
    float a;
    float l_area;
    //function overloading
    void area(int r)
    {
        a = 4 * 3.14 * r * r;
    }
    void area(int l, int b, int h)
    {
        a = 2 * ((l * b) + (b * h) + (h * l));
        l_area = 2 * h * (l + b);
    }
};

class calculate_volume
{
    public:
    float v;
    //function overloading
    void volume(int r)
    {
        v = 4 * 3.14 * r * r * r / 3;
    }
    void volume(int l, int b, int h)
    {
        v = l * b * h;
    }
};

class display : public calculate_area, public calculate_volume
{
    public:
    void disp_sphere()
    {
        cout << "Area of sphere = " << a << endl;
        cout << "Volume of sphere = " << v << endl;
    }
    void disp_cuboid()
    {
        cout << "Total Surface Area of Cuboid = " << a << endl;
        cout << "Lateral Surface Area of Cuboid = " << l_area << endl;
        cout << "Volume of Cuboid = " << v << endl;
    }
};

void main()
{
    clrscr();
    display obj1;
    char ch;
    cout << "Enter choice: Sphere[S] / Cuboid[C]: ";
    cin >> ch;

    switch (ch)
    {
    case 'S':
        int r;
        cout << "Enter radius of the sphere: ";
        cin >> r;
        obj1.area(r);
        obj1.volume(r);
        obj1.disp_sphere();
        break;

    case 'C':
        int l, b, h;
        cout << "Enter length, breadth and height of the Cuboid respectively: ";
        cin >> l >> b >> h;
        obj1.area(l, b, h);
        obj1.volume(l, b, h);
        obj1.disp_cuboid();
        break;

    default:
        cout << "Invalid choice.";
    }
    getch();
}

//...........Coded by Ananya Vidyadharan
 

#include <iostream>
using namespace std;

class calculate_area
{
    public:
    float a;
    float l_area;
    //function overloading
    void area(int r)
    {
        a = 4 * 3.14 * r * r;
    }
    void area(int l, int b, int h)
    {
        a = 2 * ((l * b) + (b * h) + (h * l));
        l_area = 2 * h * (l + b);
    }
};

class calculate_volume
{
    public:
    float v;
    //function overloading
    void volume(int r)
    {
        v = 4 * 3.14 * r * r * r / 3;
    }
    void volume(int l, int b, int h)
    {
        v = l * b * h;
    }
};

class display : public calculate_area, public calculate_volume
{
    public:
    void disp_sphere()
    {
        cout << "Area of sphere = " << a << endl;
        cout << "Volume of sphere = " << v << endl;
    }
    void disp_cuboid()
    {
        cout << "Total Surface Area of Cuboid = " << a << endl;
        cout << "Lateral Surface Area of Cuboid = " << l_area << endl;
        cout << "Volume of Cuboid = " << v << endl;
    }
};

int main()
{
    display obj1;
    char ch;
    cout << "Enter choice: Sphere[S] / Cuboid[C]: ";
    cin >> ch;

    switch (ch)
    {
    case 'S':
    case 's':
        int r;
        cout << "Enter radius of the sphere: ";
        cin >> r;
        obj1.area(r);
        obj1.volume(r);
        obj1.disp_sphere();
        break;

    case 'C':
    case 'c':
        int l, b, h;
        cout << "Enter length, breadth and height of the Cuboid respectively: ";
        cin >> l >> b >> h;
        obj1.area(l, b, h);
        obj1.volume(l, b, h);
        obj1.disp_cuboid();
        break;

    default:
        cout << "Invalid choice.";
    }
    return 0;
}

//...........Coded by Ananya Vidyadharan