size of the tree
| def size[T] (tree: Tree[T]) = | |
| fold(tree, 0: Int){(l,x,r) => l + r + 1} | |
| scala> size(t1) | |
| res11: Int = 7 |
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| def size[T] (tree: Tree[T]) = | |
| fold(tree, 0: Int){(l,x,r) => l + r + 1} | |
| scala> size(t1) | |
| res11: Int = 7 |