summaryrefslogtreecommitdiff
path: root/h18.hs
diff options
context:
space:
mode:
authorJoe Zhao <ztuowen@gmail.com>2015-03-17 14:33:20 +0800
committerJoe Zhao <ztuowen@gmail.com>2015-03-17 14:33:20 +0800
commit18a639eb460d7581a5dd594a50eb236ae7675685 (patch)
tree85f4289e9835fbaa673256a941970313f56848b4 /h18.hs
parenta9ee47b61558efe09aee23f5671aabd0c3747e8a (diff)
downloadh99-18a639eb460d7581a5dd594a50eb236ae7675685.tar.gz
h99-18a639eb460d7581a5dd594a50eb236ae7675685.tar.bz2
h99-18a639eb460d7581a5dd594a50eb236ae7675685.zip
+16 +17 +18 +19
Diffstat (limited to 'h18.hs')
-rw-r--r--h18.hs7
1 files changed, 7 insertions, 0 deletions
diff --git a/h18.hs b/h18.hs
new file mode 100644
index 0000000..b9e8192
--- /dev/null
+++ b/h18.hs
@@ -0,0 +1,7 @@
+slice :: [a] -> Int -> Int -> [a]
+slice (x:xs) a b
+ | a > 1 = slice xs (a-1) (b-1)
+ | a <= 1 && b >= 1 = x:(slice xs (a-1) (b-1))
+ | otherwise = []
+
+slice' xs i j = [x | (x,k)<- (zip xs [1..j]) , k >= i]