12 lines
317 B
Haskell
12 lines
317 B
Haskell
import AoC
|
|
|
|
import Data.List
|
|
import Data.Maybe
|
|
import Control.Monad
|
|
|
|
find_n_summing :: (Num a, Eq a) => a -> Int -> [a] -> Maybe [a]
|
|
find_n_summing to = (find ((to ==) . sum) .) . replicateM
|
|
|
|
main = runAoC (fmap read <$> lines) (solution 2) (solution 3)
|
|
where solution = product . fromJust .: find_n_summing 2020
|