OOP-Focused Motivation for Wise | Dataford Interview Questions

Why wise? Technical part was OOP

Implement an extensible object-oriented shape area calculator. Create shape classes with a common area() method, instantiate them from input dictionaries, and return areas in input order.

Input: a list of dictionaries describing circle shapes with radius, or rectangle shapes with width and height.

Output: a list of numeric areas. Use 3.141592653589793 for π.

Example: [{"type":"circle","radius":2},{"type":"rectangle","width":3,"height":4}] returns [12.566370614359172, 12].

Constraints: at least one shape, at most 10^4 shapes, and all dimensions are positive.

Constraints

1 <= len(shapes) <= 10^4
Each shape is either a circle or a rectangle
All dimensions are positive numbers
Circle areas use π = 3.141592653589793

Function Signature

def calculate_areas(shapes):

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