Anders Englöf Ytterström
9a7a9c878b
Funny that original 2023 day 5 also was a PITA to figure out. Pt 1 was solved using BFS to flood-fill. After trying some different methods for pt 2, including: - wallcrawling, - side couting, - corner counting I never produced code to get past the test cases. - Wall crawling are hard due to overlapping regions. - corner couting and side counting are both hard, but will act as equally good solutions (since side count equals corner count). - Concave corners are hard, convex corners are easy. The final code is based on the posts on the solutions megathread. Changes: - Keep all areas in a set, defining a region. - find all convex and concave corners in each region. A new helper got introduced: Di, storing all diagonal neighbors for grid traversing. Convex corners: .. R. .R .. R. .. .. .R Concave corners: RR .R R. RR .R RR RR R. |
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| aoc.py | ||
| README.md | ||
Advent of Code 2024
Solutions for #aoc2024 in Python 3 (3.12.7).
Programming setup:
- Lenovo Thinkpad X260
- Arch Linux with Hyprland
- Zed editor (Ruff, Pyright)
- Firefox
- Alacritty
Help scripts
Display all solved puzzles:
python aoc.py
To bootstrap a new puzzle (creates input/<day_no>.txt and output/day_<day_no>.py):
python aoc.py <day_no> new
Manually copy the puzzle input from https://adventofcode.com and paste it in input/<day_no>.txt
to start coding.
wl-paste > input/<day_no>.txt
Solve separate puzzle (replace XX with the puzzle number):
python -m output.day_XX
Solve separate puzzle using stdin (replace XX with the puzzle number):
wl-paste | python -m output.day_XX
cat tmpfile | python -m output.day_XX
Execute separate puzzle on file save (replace XX with the puzzle number):
ls output/*.py | entr -c -s 'wlpaste | python -m output.day_XX'
ls output/*.py | entr -c -s 'cat tmpfile | python -m output.day_XX'
ls output/*.py | entr -c -r python -m output.day_XX
(requires entr and wl-paste, Mac users can instead use pbpaste. If you
prefer X at Linux, use xclip -selection clipboard -o).
To lint files:
ls output/*.py | entr -r -c flake8 output --ignore=E741,E501,E203