Open zrwusa opened 8 months ago
Expected behavior
In a binary tree, add and remove null nodes. When adding a null node, the size of the binary tree does not need to increase, and when removing a null node, the size does not need to decrease.
Expected behavior
In a binary tree, add and remove null nodes. When adding a null node, the size of the binary tree does not need to increase, and when removing a null node, the size does not need to decrease.