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I found the basis of a print on Stackover flow the other day and changed it a little bit to be more compatible across compiler versions.

Happy Coding!

void print() {
    print(root, 0); //call it on your root/head node
}

For some reason my code editor wouldn’t do the left slashes so below is a screenshot.

Here is an example of what it will look like for the sequence 5 7 4 2 1 9 8 3 6: