Advent of Code 2018 - In Kotlin Some intro notes here - Solutions Here are my notes on each of the puzzles and their solutions: ⬛⬛ Day 1 ⬛⬛ Day 2 ⬛⬛ Day 3 ⬛⬛ Day 4 ⬛⬛ Day 5 ⬛⬛ Day 6 ⬛⬛ Day 7 ⬛⬛ Day 8 ⬛⬛ Day 9 ⬛⬛ Day 10 ⬛⬛ Day 11 ⬛⬛ Day 12 ⬛⬛ Day 13 ⬛⬛ Day 14 ⬛⬛ Day 15 ⬛⬛ Day 16 ⬛⬛ Day 17 ⬛⬛ Day 18 ⬛⬛ Day 19 ⬛⬛ Day 20 ⬛⬛ Day 21 ⬛⬛ Day 22 ⬛⬛ Day 23 ⬛⬛ Day 24 ⬛⬛ Day 25