diff --git a/haskell/e008.hs b/haskell/e008.hs new file mode 100644 index 0000000..656a47b --- /dev/null +++ b/haskell/e008.hs @@ -0,0 +1,34 @@ +{- Discover the largest product of five consecutive digits in the 1000-digit number. -} + +import Data.Char +import Data.List +import Text.Printf + +number = map digitToInt ( + concat [ + "73167176531330624919225119674426574742355349194934", + "96983520312774506326239578318016984801869478851843", + "85861560789112949495459501737958331952853208805511", + "12540698747158523863050715693290963295227443043557", + "66896648950445244523161731856403098711121722383113", + "62229893423380308135336276614282806444486645238749", + "30358907296290491560440772390713810515859307960866", + "70172427121883998797908792274921901699720888093776", + "65727333001053367881220235421809751254540594752243", + "52584907711670556013604839586446706324415722155397", + "53697817977846174064955149290862569321978468622482", + "83972241375657056057490261407972968652414535100474", + "82166370484403199890008895243450658541227588666881", + "16427171479924442928230863465674813919123162824586", + "17866458359124566529476545682848912883142607690042", + "24219022671055626321111109370544217506941658960408", + "07198403850962455444362981230987879927244284909188", + "84580156166097919133875499200524063689912560717606", + "05886116467109405077541002256983155200055935729725", + "71636269561882670428252483600823257530420752963450" + ] + ) + +main = do + let sets = filter (\x -> length x == 5) (map (take 5) (tails number)) + printf "Maximum product: %d\n" (maximum (map product sets))