Report the depth of a three-level tree.
Acceptance criteria
- 1.#out should show depth 3.
DSA Tutorial · Trees
Practice: Common Tree Problems
These 10 tasks go with the Common Tree Problems chapter. 5 of them ask you to build something small from scratch; 5 give you code that is already broken and ask you to work out why. Set aside about 90 minutes for the whole set, though you can do them in any order.
Nothing here is marked by a person. When you press Submit, the editor checks your code against the points listed under each task and tells you straight away what passed and what didn't (you need a free account to submit). If you get stuck, there are hints, and a worked solution once you've had a go. The first 2 tasks are free; the rest are part of the practice plan.
If it's been a while since you read the chapter, here is how it starts: “Nearly every tree question is post-order: solve both subtrees, then combine. Once you see that, the code stops being something you memorise.” .