I have followed the Advent of Code site for several years now. I don't usually have the time to fully finish it, as the time required for the latest and hardest exercises becomes more than I can spare for it. But who knows? This year might be different. It has definitely been a very different year so far.
As an additional exercise, I will keep a log of the solutions here; one post per day. The code will be in this GitHub repo, if you want to follow it. The posts will deal with the rationale behind the solutions and the choices made.
There are some general aspects of the repo, that may be relevant to highlight. First, the exercises for each day are in a puzzleXX.py file, where XX is the corresponding day. The puzzle input if needed is in a file with the same name and .in extension. In some cases the puzzle gives a smaller example that is useful for testing, and those have a .in.test extension; since each puzzle has a read_input() method, changing the file that is read there will switch between the full and test input. Remember that the input files are personalized, so using mine will not give you the right answer for you, you'll need to substitute your own input files.
The different aoc.* scripts help in removing boilerplate. aoc.py allows to run specific puzzles and parts, with aoc and aoc.bat being thin wrappers (for Linux and Windows, respectively) so that part p of day d can be run with [./]aoc d p. All puzzles return the expected answer so it can be copied directly.
I will link to the posts for each day below, or you can use the aoc2020 tag to filter them.
Links to posts:
- Day 1
- Day 2
- Day 3
- Day 4
- Day 5
- Day 6
- Day 7
- Day 8
- Day 9
- Day 10
- Day 11
- Day 12
- Day 13
- Day 14
- Day 15
- Day 16
- Day 17
- Day 18
- Day 19
- Day 20
- Day 21
- Day 22
- Day 23
- Day 24
- Day 25
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