Advent of Code Solutions

Introduction

This repo has solutions to the Advent of Code online coding problems. It solves all historical problems and will be updated to solve new ones as they are released.

The solutions are written for combined development and execution speed (i.e. to minimize the total time from when I start reading the problem to when I have submitted the correct answer) and are therefore not up to the highest standards of excellence stylistically.

Utilities

Data

Variable	Purpose
`dt`	raw data
`ls`	lines
`l`	line
`ss`	sections
`sm(…)`	submit

Processing

Variable	Purpose
`pa(l, pt+)`	pattern match, e.g. `pa(l, "valve {} has flow rate={i}")`
`gr(ls, fn?)`	gridify lines, optionally postprocessing each character
`cngr(es, tgs)`	condense graph from (edge_map: {T, {T, int}}, targets: [T]) -> {T, {T, int}}

Other

Assembly
Search
Timer

Project Structure

assembly.py utility for assembly problems
common.py utility for standard imports
search.py utility for search problems
timer.py utility for timing a process
web.py utility for interacting with the website
prototype a directory to copy and rename for a new problem
[year] a year
- [day] a day of december
  - sln.py the solution file
  - inp.txt the input from the specific problem; optional if the input data is in solution file

Setup

Set the AOC_SESSION environment variable by following the following steps in Chrome

Login to AOC online
Right click > Inspect > Application > Cookies > https://adventofcode.com/
Copy the value of the session cookie to your environment variable

Execution

Run a given solution with

cd ./[year]/[day]
./sln.py

Next Steps

Update requirements.txt
Centralize 100% of imports into common.py and replace all imports
Fix TODOs
Migrate all problems to use web.py
Migrate all search problems to use search.py
Identify and improve other common patterns
Translate text like in 2021-13 and elsewhere to a submission

zswaff/advent