I really enjoy programming puzzles and recently I discovered Advent Of Code thanks to a colleague.
Quoting its creator:
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.
It happens every year since 2015.
I started 2020 using my favourite
I plan to do the previous years too, preferably using other languages (
Swift is next).
I will upload all solutions on github.