class Rectangle
def initialize(*args)
case args.size
when 2
@top_left, @bottom_right = args
when 3
@top_left, length, width = args
@bottom_right = [@top_left[0] + length, @top_left[1] - width]
else
raise ArgumentError, "This method takes either 2 or 3 arguments."
end
end
end
puts Rectangle.new([10, 23], [14, 13])
puts Rectangle.new([10, 23], 4, 10)
puts Rectangle.new
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