I like how in a lot of solutions above you all are...

# advent-of-code

[Joris PZ]

I like how in a lot of solutions above you all are combining generateSequence and the null-if-not-present property of Map.get() . Very clever!

[Burkhard]

To be honest I changed my solution to use generateSequence after I saw your post. All credits to you 😃

[karelpeeters]

Yeah it so satisfying when everything combines nicely.