# Experimental!
P ← ▽⊸≠∞⊜⍣⋕∞⊸≠@ ▽⊸≠@,
N ← ⍥(/◇⊂⍚(≡⌟⊂≡⊂⊸⇌⇡+₁°⊂))⊓-₁(¤¤) # combs ? len seed
↥0≡/+×⌟˜N100⊸⧻&rlP&fo"i/15.in"   # [props] ?
∩/↥⊸▽⊓=₅₀₀/×⍜⇌°⊂⍉

~/aoc15ua/15