I do Advent of Code up to Day 15 (with max 1 day missed out on)

Created by platypus42 on 2020-12-06; known on 2020-12-16; judged right by platypus42 on 2020-12-15.

• platypus42 estimated 65% on 2020-12-06
• platypus42   judged this prediction right on 2020-12-15.