feat(sterni/aoc/2022): day25 array solutions

Another approach for figuring out the SNAFU digits in k:
https://github.com/leahneukirchen/adventofcode2022/blob/master/day25.k

Change-Id: Iddf424aff8fcac176109fd35ef44bdd875302adc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7647
Autosubmit: sterni <sternenseemann@systemli.org>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI

users/sterni/exercises/aoc/2022/25/25.bqn

@@ -0,0 +1,4 @@
+c ← "=-012"
+F ← +´∘(⊢×(5⊸⋆)∘⌽∘↕∘≠)∘(-⟜2)∘(c⊸⊐)
+T ← {c⊏˜5|2+𝕩 {(⌊5÷˜𝕨+2) (𝕊⟜(𝕨⊸∾))⍟(0<𝕨) 𝕩} ⟨⟩}
+•Out "day25.1: "∾T +´F¨ •FLines "input"

users/sterni/exercises/aoc/2022/25/25.k

@@ -0,0 +1 @@
+c@2+{(1_o,0)+x+-5*o:2<x}/5\+/{5/x-2}'(c:"=-012")?0:"input"