Created
December 4, 2017 18:04
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| let rectangle = Rectangle(width: 42, height: 42) | |
| let circle = Circle(radius: 42) | |
| print(rectangle.accept(SquareShapeVisitor())) // 1764.0 | |
| print(circle.accept(SquareShapeVisitor())) // 5541.77 |
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