8 Apr
2014
8 Apr
'14
5 a.m.
hi, I am trying to implement a set multiplication program in haskell. Input : [1,2,3] [4,5] [6,7] Ouput : [ [1,4,6] , [1,4,7] , [1,5,6] , [1,5,7] ...] I implemented it for constant number of inputs like setMul xs ys zs = [ [x] ++ [y] ++ [z] | x <- xs , y<-ys ,z <- zs] I am not able to generalize this for any number of lists. type signature would be : setMulMany :: [[a]] -> [[a]] Example : Input : [ [1,2,3] , [4,5] , [6,7]] Ouput : [ [1,4,6] , [1,4,7] , [1,5,6] , [1,5,7] ...] Regards. Nishant