AVL tree insertion

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Your data structure videos are the best resources I've ever encountered. Thank you for awesome tutorials!

basix

This is by far the best explanation for AVL Trees pseudocode, I could find on the internet! Really awesome content.

akhilrajnambiar

Amazing explanation! I wish my university professors could teach like you. Life would’ve been so much easier. Thank you so much for making these videos, it’s really helping me in my algorithms course.

adnansamivlogs

Your explanation is top-notch, I'm not even kidding.

phanthanhchung

Thank you very much! You did amazing job!
I watched others video and didn't understand AVL tree, but yours did the trick :)

arkadyzelensky

this is the best DS tutorials hands down!

ghostfjdgcsusvsgsj

if you write this code exactly, your balance function might not work. to fix that, add an update function in the insert function for the node as soon as you create it before returning. This is very important as the height and bf of the subsequent subtrees depend on the leaf nodes

nosakhareaghedo

The best explanations I have ever searched, thanks a lot ^_^
Your tree rotation video is awesome and easy to understand too, very helpful for me!

howardcheng

Amazing explanation. The breakdown of what's happening makes it look so simple. Thanks :)

deepikasingh

You are much better than my professor.. Thanks!

ritaheejeong

Genius! Simplicity and effectiveness themselves! liked and subbed

kristijanceple

At 7:32, why is the condition to test if a rotation is "leftleft" or "leftright" node.left.bf <= 0? Shouldnt it be node.left.bf == -1? Can anyone give me an example where node.left.bf == 0 for a "leftleft" case?

bluejimmy

@WilliamFiset Man you are a amazing. hero! Superman!

griffinmfalme

Man you're being awesome! Thanks for that... Keep that up! :)

mohamedibrahimbehery

Very good explanations! Keep'em coming :)

FreakStyler

Looking at the comments, I think I am just dumb for not understanding it. I don't understand the part after the rotation. When rotation is done, and we have new root at the top, how do we connect to the parent? how does it happen, don't skip that part please. because parent still has reference to the rotated node.

NaveenKumar-osdv

The connecting lines of the trees need to be thicker. They are almost invisible.

typingcat

7:11 wrong code...please edit video....

ahmedhussein

After rotating, the balanced factor of the root node is 0(+1) for the left-left case. Why including +1? Thanks

maxxxwan

5:23 "pseudo-code" == almost python

osolomons

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