> You will just have to program everything on IO Sort of, but I think this misleads a little bit. You will have to program your manipulation of the array in I

> You will just have to program everything on IO Sort of, but I think this misleads a little bit. You will have to program your manipulation of the array in IO, and thus anything using the actions manipulating the array. Intermediate computations could be outside IO. And of course there's also ST.