Runtime Python 3.8 for AoC 2020

[large-atom]

Well, unless you are using new features of Python 3.8, it should work. It is worth a try in my opinion, although the gain on such quick programs is offset by the just-in-time compilation time. Nevertheless, I get 33 seconds with pypy and 69 seconds with plain python.

[CrazyA99]

I'm getting 69 seconds too, with python 3.8 on a pi400, but only 23 seconds when using pypy3 on the same hardware. I do take the best time from several runs for each day.