Files
eulerfunt/haskell/p4.hs
2022-10-27 08:54:11 +05:30

6 lines
158 B
Haskell

main :: IO ()
main = putStr $ show solve
solve :: Integer
solve = maximum [a * b | a <- [100 .. 999], b <- [a .. 999], let s = show $ a * b, s == reverse s]