Advent of Code is an Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like. People use them as a speed contest, interview prep, company training, university coursework, practice problems, or to challenge each other.
Fork & Clone or Download and cd into the year and run
python3 main.py
or to run specific day
python3 day_xx
xx = 01, 02,...,25.