B-trees: interview question

Question

0.00/5 (No votes)

See more:

Hi all,

at an interview I was told

B-trees are not binary trees as they are intentionally wide structures containing many children elements that are linked to facilitate reversed order traversals

is the second part talking about linked elements true? AFAIA binary trees can be linked that way, but I could not so far find the same "linked" approach for B-trees.

help is appreciated.

What I have tried:

so far I tried searching on google & through Knuth's bool #3 & could only find linked binary trees. or maybe I misunderstood what what exactly was meant?

Posted 23-Apr-21 22:33pm

Petr Osipov

Updated 24-Apr-21 0:19am

Add a Solution

Comments

Petr Osipov 24-Apr-21 7:54am

So far could only found mentions of links for B+ trees, see https://en.wikipedia.org/wiki/B%2B_tree but I could not find any mention for exactly reversed traversals. Knuth says B+ trees at leaves level could be traversed in random order.

[no name] 24-Apr-21 12:38pm

"Logically linked" perhaps; B-tree contain keys (pointers) and the structure is ordered.

Petr Osipov 25-Apr-21 5:05am

thank you for the reply. makes sense, that might be it indeed, but to me so far it seems more likely the guy did not know what he was talking about

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)