Question: Write a method called copy that returns a reference to a new IntTree that is an independent copy of the original tree. Do not change
Write a method called copy that returns a reference to a new IntTree that is an independent copy of the original tree. Do not change the original tree.

Reference Tree #2 2 Reference Tree #1 1 7. 4 4 Reference Tree #3 2 3 8. 9. 3. 1.
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