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| author | Mohammad S Anwar <mohammad.anwar@yahoo.com> | 2021-05-12 15:48:00 +0100 |
|---|---|---|
| committer | Mohammad S Anwar <mohammad.anwar@yahoo.com> | 2021-05-12 15:48:00 +0100 |
| commit | bef7b6d2e9c85f53aa646ab4d59bb52214406536 (patch) | |
| tree | 2b52a9da082d7eac51540498eaebe7bbc9752ec4 | |
| parent | 435c5eb701ecb59b285559df3b43d60b5a919210 (diff) | |
| download | perlweeklychallenge-club-bef7b6d2e9c85f53aa646ab4d59bb52214406536.tar.gz perlweeklychallenge-club-bef7b6d2e9c85f53aa646ab4d59bb52214406536.tar.bz2 perlweeklychallenge-club-bef7b6d2e9c85f53aa646ab4d59bb52214406536.zip | |
- Added Haskell solution by Ulrich Rieke.
| -rw-r--r-- | challenge-112/ulrich-rieke/haskell/ch-2.hs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/challenge-112/ulrich-rieke/haskell/ch-2.hs b/challenge-112/ulrich-rieke/haskell/ch-2.hs new file mode 100644 index 0000000000..9c935587e8 --- /dev/null +++ b/challenge-112/ulrich-rieke/haskell/ch-2.hs @@ -0,0 +1,8 @@ +module Challenge112 + where +import Data.List ( permutations , nub ) + +stepcounter :: Int -> Int +stepcounter n = length $ concat $ map (nub . permutations) [ replicate t 1 ++ + replicate o 2 | t <- [0 .. n] , o <- [0 .. div n 2] , sum ( replicate t 1 ++ + replicate o 2 ) == n] |