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Diffstat (limited to '61-69/62.hs')
| -rw-r--r-- | 61-69/62.hs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/61-69/62.hs b/61-69/62.hs new file mode 100644 index 0000000..a1344c6 --- /dev/null +++ b/61-69/62.hs @@ -0,0 +1,5 @@ +data Tree a = Empty | Branch a (Tree a) (Tree a) deriving (Show, Eq) + +internals Empty = [] +internals (Branch _ Empty Empty) = [] +internals (Branch x l r) = x:internals l ++ internals r |