This was my first year trying Advent of Code. I originally intended to do all the solutions in both R and python. However, as they got more complicated, I decided to prioritize R, sticking with the tidyverse as much as possible. I put all of the RMarkdown and Jupyter notebooks in a public git repo. Overall, it was a great learning experience. I didn't finish all of the days, both because of travel and because of difficulties working with 3D matrices in tidyverse. I think the best part was finally have an excuse to work with classes in R. Obviously, R's approach is very different from python, but you can…