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Date: Sun, 6 Dec 2020 00:39:34 -0800 (PST)
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Subject: Advent of Code Day 6
From: John Perry <john.perry@usm.edu>
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Xref: reader02.eternal-september.org comp.lang.ada:60744
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Today was quite easy, so I used the opportunity to learn about Ada.Strings.Maps, and that made for a much simpler solution to look at.

I do wonder about the efficiency, though. For instance, the only way I could find to count the number of elements in a Character_Set was by converting it to a Character_Sequence. Is there another way?