day4/haskell: fix wrongly removed import

2020-12-06 12:03:35 +01:00 · 2020-12-06 12:03:35 +01:00 · 26dc74cb53
parent c5d334348a
commit 26dc74cb53
1 changed files with 1 additions and 0 deletions
--- a/day4/day4.hs
+++ b/day4/day4.hs
@ -3,6 +3,7 @@ import AoC
 import Control.Applicative ((<|>))
 import Control.Monad (guard, mfilter)
 import Data.Char (isDigit)
+import Data.List (intercalate)
 import Data.Maybe (mapMaybe)
 import Text.ParserCombinators.ReadP
 import Text.Read (readMaybe)