I'm doing this challenge with friends, third year already ! The one who lasts the most exercices gets a special Discord title to brag for one year. First time I'm keeping everything for prosperity.
UPDATE :
https://adventofcode.com/2022/about "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 interview prep, company training, university coursework, practice problems, a speed contest, or to challenge each other."