On Oct 15, 2007, at 7:59 , Felipe Lessa wrote:
On 10/15/07, apfelmus <[EMAIL PROTECTED]> wrote:
lasts :: Int -> [a] -> [a]
lasts n xs = head $ [x | (x,[]) <- zip (tails xs) (tails $ drop
n xs)]
(...)
main n = print . sum . map read . lasts n . lines =<< getContents
But that's a a two-liner now heh =).
.oO { if you want Perl, you know where to find it... }
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED]
electrical and computer engineering, carnegie mellon university KF8NH
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