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| author | Determinant <ted.sybil@gmail.com> | 2017-05-30 01:28:36 -0400 |
|---|---|---|
| committer | Determinant <ted.sybil@gmail.com> | 2017-05-30 01:28:36 -0400 |
| commit | 626a548f0ef51b5ee1d3ba049330317f94c89f99 (patch) | |
| tree | 3ac0d4146e156a64ffe81fd2578ff6638f9fc7f5 /61-69/61a.hs | |
| parent | 8ea7effa639a0640b38917a9f575aedebcdd2b78 (diff) | |
...
Diffstat (limited to '61-69/61a.hs')
| -rw-r--r-- | 61-69/61a.hs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/61-69/61a.hs b/61-69/61a.hs new file mode 100644 index 0000000..c7c3662 --- /dev/null +++ b/61-69/61a.hs @@ -0,0 +1,7 @@ +data Tree a = Empty | Branch a (Tree a) (Tree a) deriving (Show, Eq) + +leaves :: Tree a -> [a] + +leaves Empty = [] +leaves (Branch x Empty Empty) = [x] +leaves (Branch _ l r) = leaves l ++ leaves r |