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52 changes: 29 additions & 23 deletions data_structures/binary_tree/mirror_binary_tree.py
Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,8 @@ def mirror(self) -> Node:
def make_tree_seven() -> Node:
r"""
Return a binary tree with 7 nodes that looks like this:
::

1
/ \
2 3
Expand All @@ -81,13 +83,15 @@ def make_tree_seven() -> Node:
def make_tree_nine() -> Node:
r"""
Return a binary tree with 9 nodes that looks like this:
1
/ \
2 3
/ \ \
4 5 6
/ \ \
7 8 9
::

1
/ \
2 3
/ \ \
4 5 6
/ \ \
7 8 9

>>> tree_nine = make_tree_nine()
>>> len(tree_nine)
Expand Down Expand Up @@ -117,23 +121,25 @@ def main() -> None:
>>> tuple(tree.mirror())
(6, 3, 1, 9, 5, 2, 8, 4, 7)

nine_tree:
1
/ \
2 3
/ \ \
4 5 6
/ \ \
7 8 9

The mirrored tree looks like this:
nine_tree::

1
/ \
2 3
/ \ \
4 5 6
/ \ \
7 8 9

The mirrored tree looks like this::

1
/ \
3 2
/ / \
6 5 4
/ / \
9 8 7
/ \
3 2
/ / \
6 5 4
/ / \
9 8 7
"""
trees = {"zero": Node(0), "seven": make_tree_seven(), "nine": make_tree_nine()}
for name, tree in trees.items():
Expand Down
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