Comment by scorpion032
11 years ago
The good and bad the op is talking about is different. If the attitude is not the best, you don't hire anyway.
If the candidate cannot invert a binary tree and gets mostly there, and has demonstrable real world software, it's a different thing.
> invert a binary tree
What does that even mean? Swap left-right child nodes? Write it linearly (n-th children at 2n and 2n+1) and reverse it as if it was a string? OP later described it as "to min-max the tree, ascending to descending." confusing me further.