Day four was tough! Here's my solution: <https://g...

# advent-of-code

[devbridie]

Day four was tough! Here's my solution: https://github.com/devbridie/adventofcode2018/blob/master/src/main/kotlin/com/devbridie/adventofcode2018/solutions/Day4.kt

[devbridie]

Still want to remove mutation when creating the sleeping times, but I'm not sure how to approach this. One huge fold is possible, but I hate this solution.