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=={{header|Haskell (alternate version)}}==
=={{header|Haskell (alternate version)}}==
An alternate Haskell version, which some may consider to be in a more functional style. No attempt at optimization has been made, so we don't attempt the stretch goals.
An alternate Haskell version, which some may consider to be in a more idiomatic style. No attempt at optimization has been made, so we don't attempt the stretch goals.
<lang haskell>import Data.List (inits, nub, tails, unfoldr)
<lang haskell>import Data.List (inits, nub, tails, unfoldr)