Cyclic Rotation

Elixir Cyclic Rotation

defmodule CyclicRotation do
  def cyclic_rotation([], _k), do: []

  def cyclic_rotation(a, k) do
    size = length(a)
    shift = rem(k, size)
    {front, back} = Enum.split(a, size - shift)

    back ++ front
  end
end

This rotates the array to the right by K steps and keeps the wrap-around values in the correct order.