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This is a Quicksort function. But I’ve got an error at 5:46
--sort function
quicksort [] = []
quicksort (x:xs) = (quicksort lesser) ++[x] ++ (quicksort greater)
where lesser = filter (<) xs
greater = filter (>=) xs
What’s the problem?
It seems that the function is correct.
It appears you have a simple whitespace error….
lesserandgreaterneed to be indented equally, so that they begin on the same column.