Your curious example suggests you might be solving a more specialized
problem, like selecting the diagonal of a flattened matrix. In this
case, there are much better (and more efficient) data structures that
enforce invariants (like squareness of a matrix), if that is what you in
fact are doing.
Taral wrote:
On 11/30/06, Huazhi (Hank) Gong <[EMAIL PROTECTED]> wrote:
Thanks, it make sense here.
However, like I want to choose s[1,3,6,10] or something like this. Are
there
some straightforward function or operator for doing this job? The !!
operator in haskell seems does not support multiple indecies.
If you're trying to do random access on a list, you should rethink why
you're using a list.
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