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July 8, 2018 08:29
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| def compress(<<0x04::8, x_coordinate::256, y_coordinate::256>>) do | |
| y_coordinate | |
| |> rem(2) | |
| |> compress(x_coordinate) | |
| end | |
| def compress(0, x_coordinate), do: <<0x02::8, x_coordinate::256>> | |
| def compress(1, x_coordinate), do: <<0x03::8, x_coordinate::256>> |
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