tristan/aoc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

2024 day 12 part 1 in js

Browse source
This commit is contained in:
tristan 2024-12-12 22:17:35 +00:00
parent 2db8edb087
commit 161b2a7e6f
5 changed files with 74 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

10
2024/11/solution.nix
View file

@ -3,6 +3,8 @@
inherit (lib.strings) toIntBase10;
in input: rec {
sum = foldl' add 0;
blinkStone = stone: count:
if toIntBase10 stone == 0 then [{ "1" = count; }]
else let
@ -21,19 +23,17 @@ in input: rec {
;
bfast = stones: stones
|> (builtins.mapAttrs (stone: blinkStone stone))
|> builtins.mapAttrs blinkStone
|> attrValues
|> concatLists
|> addStones
|> builtins.zipAttrsWith (stone: sum)
;
bfastt = times: stones:
if times == 0 then stones |> attrValues |> foldl' add 0
if times == 0 then stones |> attrValues |> sum
else bfastt (times - 1) (bfast stones)
;
addStones = builtins.zipAttrsWith (stone: foldl' add 0);
initialStones = input
|> lib.trim
|> lib.splitString " "