diff options
| -rwxr-xr-x | challenge-018/stuart-little/haskell/ch-1.hs | 11 | ||||
| -rwxr-xr-x | challenge-018/stuart-little/haskell/ch-2.hs | 17 |
2 files changed, 28 insertions, 0 deletions
diff --git a/challenge-018/stuart-little/haskell/ch-1.hs b/challenge-018/stuart-little/haskell/ch-1.hs new file mode 100755 index 0000000000..1b6e296aca --- /dev/null +++ b/challenge-018/stuart-little/haskell/ch-1.hs @@ -0,0 +1,11 @@ +#!/usr/bin/env runghc + +-- run <script> <space-separated strings> + +import System.Environment (getArgs,) +import Data.List (inits,tails,isInfixOf,) +import Data.List.Extra (maximumOn,) + +main = do + strs <- getArgs + putStrLn $ maximumOn length $ filter (and.(flip map strs).(isInfixOf)) $ concat $ map tails $ inits $ head strs diff --git a/challenge-018/stuart-little/haskell/ch-2.hs b/challenge-018/stuart-little/haskell/ch-2.hs new file mode 100755 index 0000000000..b69b487e9e --- /dev/null +++ b/challenge-018/stuart-little/haskell/ch-2.hs @@ -0,0 +1,17 @@ +#!/usr/bin/env runghc + +-- run <script> + +import qualified Data.PSQueue as Q +import Data.Maybe (fromJust,) + +main = do + let q = Q.insert "e" 5 $ Q.insert "d" 3 $ Q.insert "c" 1 $ Q.insert "b" 2 $ Q.insert "a" 1 Q.empty + putStrLn $ "\nInitial queue: \n" ++ (show q) + + let (item,q') = fromJust $ Q.minView q + putStrLn $ "\nPulling lowest-priority, earliest-inserted element:" + putStrLn $ "\nItem: " ++ (show item) + putStrLn $ "\nNew queue state: \n" ++ (show q') + + putStrLn $ "\nIs the queue empty? " ++ (show $ Q.null q') |
