Day 9: I jumped on this one as soon as it was released but I lost time due to a bug in my updated read implementation meaning I ranked > 1000.
https://github.com/wezm/advent-of-code/blob/6b9f91c1008cfea65a029132b256733dd5613edb/2019/src/bin/day9.rs #AdventOfCode #Rustimage.png