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Diffstat (limited to '21-28/26.hs')
| -rw-r--r-- | 21-28/26.hs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/21-28/26.hs b/21-28/26.hs new file mode 100644 index 0000000..cbc469b --- /dev/null +++ b/21-28/26.hs @@ -0,0 +1,5 @@ +combinations :: Int -> [a] -> [[a]] + +combinations 0 _ = [[]] +combinations _ [] = [] +combinations k (x:xs) = [x:t | t <- combinations (k - 1) xs] ++ combinations k xs |