Question: 2 Write a recursive function that counts how many nodes in a tree have a single child. The function signature is: int countOneChild(node root) Identify

2 Write a recursive function that counts how many nodes in a tree have a single child. The function signature is: int countOneChild(node root) Identify the beight and balance factor of each node in the following BSTs. Then, balance these trees if needed and show the design of the tree after each rotation. 3. 14 21 2 17 40 42

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