Andreas Fuertig wrote:
fillArray ["a"] [[("a",True)],[("a",False)]]
fillArray ["a","b"] [[("a",True),("b",True)],[("a",False),("b",True)],[("a",True),("b",False)], [("a",False),("b",False)]]
A simple solution is:
fill :: [a] -> [[(a,Bool)]] fill [] = [[]] fill (x:xs) = do v <- [True,False] ; vs <- fill xs ; return ((x,v):vs)
have fun,
-- -- Mirko Rahn -- Tel +49-721 608 7504 -- --- http://liinwww.ira.uka.de/~rahn/ --- _______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell