Advent of code provides some neat coding challenges for each day of december. The site can be found here: https://adventofcode.com/2020/
This repository provided some solutions for some tasks based on the Python Programming Language. Spoiler: its a good idea to try the tasks your own before watching the solution (or at the very least think of a way to solve them). A original task description is included for each day. Commonly there is not one and one way only to solve a task. If you have an alternative solution, you're invited to push your code here.
I will only provide some solutions (if I find time for myself to solve some). Again, you're invited to push your solutions here.