On Sunday 15 May 2011 15:32:03, Herbert Valerio Riedel wrote:
> On Thu, 2011-05-12 at 19:31 +0200, Daniel Fischer wrote:
> > > Minor nitpick: instead of doing 'sort . nub', please use 'import
> > > qualified Data.Set as S' and do 'S.toAscList . S.fromList'. This
> > > should be a lot faster.
> >
On Thu, 2011-05-12 at 19:31 +0200, Daniel Fischer wrote:
> > Minor nitpick: instead of doing 'sort . nub', please use 'import
> > qualified Data.Set as S' and do 'S.toAscList . S.fromList'. This
> > should be a lot faster.
>
> Or `map head . group . sort', which may be faster than building an
>