aoc2021/d2golf.hs
2021-12-02 16:21:12 +01:00

3 lines
No EOL
236 B
Haskell

q[h,f](d,n)|"f"<d=[h-n,f]|"f">d=[h+n,f]|let=[h,f+n]
p[h,f,a](d,n)|"f"<d=[h,f,a-n]|"f">d=[h,f,a+n]|let=[h+n,f+n*a,a]
main=interact$show.(\a->product.($a)<$>[init.foldl p[0,0,0],foldl q[0,0]]).map(fmap read.splitAt 1.map head.words).lines