How to draw BST

[whoovian11]

So we have these numbers and I have to draw a balanced tree and then remove 7 .. so these are the numbers -42 1 3 7 23 31 88.

[mutexe]

Cool.
What you got so far?

[whoovian11]

i got 7 on top, and 3 and -42 as second generation and the rest of them as third ... but my teacher said this is wrong..