t;"><strong>Highlight for solution to Problem #11:</strong> <span style="color: #ced4d9; background-color: #ced4d9;">After deallocating all the memory associated with that tree, it's best practice to set the root to nullptr back in whatever function called our deallocation function. Passing the root to our deallocation function by reference will allow us to do that.</span></span></p>

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