Solve 2018 day 22 and 2019 day 20

README.md

@@ -109,7 +109,8 @@ Solutions and utility script for Advent of Code challenges in Python.
 - Day 19: days, super fun, but hard for me
 - Day 20:
 - Day 21: 28:40 (16th - brute force but still not so bad)
-- Day 22:
+- Day 22: 185:00 (should not have been so slow but was fun)
+- Day 23:
 
 ## AoC 2019
 
@@ -131,8 +132,9 @@ Solutions and utility script for Advent of Code challenges in Python.
 - Day 16: days    (Wow. Just too hard for me to solve quickly?)
 - Day 17: days    (Fun but too tricky for me to be fast.)
 - Day 18: days    (Slow and slow algorithm.)
-- Day 19: 40:00 (Way too slow! Oversight error. Come on.)
-- Day 20:
+- Day 19: 40:00   (Way too slow! Oversight error. Come on.)
+- Day 20: days    (Not actually that hard but I struggled for no reason.) 
+- Day 21:
 
 ## AoC 2020