Advent of Code in Python

These are my solutions in Python to some of the Advent of Code puzzles. My primary aim is to make the code readable, making it fast is a secondary goal.

Requirements

• Python 3.6+

Optional:

• A POSIX-compliant shell (/bin/sh)
• A shell command python3 to run Python 3.6+ (any implementation)
• A shell command pypy3 to invoke PyPy 3.6+

How to run

• Run a single day's solver: python3 run.py 2019 10 (or ./run.sh 2019 10)
• Run all solvers: ./run.sh
• Run all solvers from one year: ./run.sh 2019

When invoked with the optional argument --time, run.sh print the execution time for each day. If the command pypy3 invokes a suitable version of PyPy, run.sh uses it for any solvers that are expected to run faster under PyPy than CPython.