3 ms·
http://www.haskell.org/haskellwiki/Heterogenous_collections http://www.haskell.org/haskellwiki/Heterogenous_collections lists some solutions
by rapala 13y ago
http://www.haskell.org/haskellwiki/Heterogenous_collections http://www.haskell.org/haskellwiki/Heterogenous_collections lists some solutions