Description

Warning: You are not allowed to use malloc and free

Giving a bass-class Shape3D and 2 derived class : Sphere, Cube 

You need to calculate the volume of each shape.

PS:

V of Sphere: V = 4/3 π r³

note : Remember to do some basic check, if the input is illegal (e.g.  length < 0, pi < 0 .....)  then the volume should be 0.

You don't need to consider the scenario like Cube -2, volume would be 0 instead of -8.

Hint1: Be careful the type of volume is double.  4/3=1 (int),  so it should be 4.0/3.0

Hint2: You only need to implement the constructors.

Input

There are only 2 shapes in this problem :

• Sphere, following by its radius and pi. (e.g. Sphere 30 3.14)
• Cube, following by its length. (e.g. Cube 2)

Output

Ouput the total volume of all the shapes.

Sample Input  Download

Sample Output  Download

Partial Judge Code

11467.cpp

Partial Judge Header

11467.h

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