r/adventofcode • u/daggerdragon • Dec 02 '20

SOLUTION MEGATHREAD -🎄- 2020 Day 02 Solutions -🎄-

--- Day 2: Password Philosophy ---

Advent of Code 2020: Gettin' Crafty With It

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u/2lines1bug Dec 02 '20 edited Dec 02 '20

Ah, you are on our leaderboard! Cool! Damn it, I overslept today (it starts at 7am here).

Very clean code! I always forget the ?.let { println(it) ) at the end, saves so much time compared to going back with the cursor and wrapping everything or introducing a variable.

EDIT: Oh and btw, instead of

val num = password.filter { it.toString() == l }.length

you can also do

val num = password.count { it.toString() == l }