Revision: 50332
Updated Code
at August 18, 2011 04:03 by rtperson
Updated Code
repli :: Int -> [a] -> [a]
repli n = concatMap (replicate n)
dropEvery :: Int -> [a] -> [a]
dropEvery n [] = []
dropEvery n xs
| length xs < n = xs
| otherwise =
let pre = (init . (take n)) xs
post = drop n xs
in pre ++ (dropEvery n post)
Revision: 50331
Initial Code
Initial URL
Initial Description
Initial Title
Initial Tags
Initial Language
at August 18, 2011 03:59 by rtperson
Initial Code
repli :: Int -> [a] -> [a]
repli n = concatMap (replicate n)
dropEvery n [] = []
dropEvery n xs =
let pre = (init . (take n)) xs
post = drop n xs
in pre ++ (dropEvery n post)
Initial URL
http://haskell.org/haskellwiki/99_questions/11_to_20
Initial Description
problem 15, Replicate the elements of a list a given number of times.
> repli "abc" 3
"aaabbbccc"
problem 16, Drop every N'th element from a list.
*Main> dropEvery "abcdefghik" 3
"abdeghk"
Initial Title
Haskell 99 Problems - Numbers 15 and 16
Initial Tags
Initial Language
Haskell