advent-of-code/2021/06
2021-12-07 12:56:54 +01:00
..
python 6 2021-12-07 12:56:54 +01:00
input.txt 6 2021-12-07 12:56:54 +01:00
README.md 6 2021-12-07 12:56:54 +01:00
test.txt 6 2021-12-07 12:56:54 +01:00

06

The naive way to do it would be to keep a list. A way more performant ways way to do this is just having an array with 9 entries (0-8) which count the states of the fish. Then you actually just rotate the array each day and add the 0 entry to the 6 additionally.

Solutions
  1. 352195
  2. 1600306001288