CONVERT BINARY SEARCH TREE TO SORTED DOUBLY LINKED LIST (Leetcode) - Code & Whiteboard

One of Facebook's most recently asked questions of the past 6 months!
Let me know down below if you have any questions :)
leetcode.com/problems/convert...
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[@Makishima240]

Just had this question in my final round onsite. I used the iterative method.

[@chloe3337]

other than neetcode, was starting to give up on finding a youtuber that is able to explain clearly for beginners and im glad that i found you (subscribed!) thank you for this

[@babybear-hq9yd]

tysm Chloe!!! agreed that neetcode is awesome :)

[@prashanth123456789]

Thanks a lot ! I have been googling around for days to find a solution that is easy to understand. Yours was perfect, can’t thank you enough mate !

[@babybear-hq9yd]

love to hear this!! thanks bro :D

[@arjunbharadwaj1820]

Hey man, awesome explanation. I understood the problem within the first 5 minutes due to your great explanations. Thank you!! Please don't stop making these kind of educational videos!

[@babybear-hq9yd]

wooo! so happy to hear that bro

[@mohammadkareem1187]

Amazing explanation and amazing smile. All the best

[@babybear-hq9yd]

thx mohammed!

[@davidgutierrez921]

wow, your communication skills are on point! just earned yourself a sub 👍

[@babybear-hq9yd]

appreciate it my man! welcome aboard :D

[@TheNealtt]

Great explanation. Love the way you explained it. Thank you :)

[@only_oneone1751]

much thanks, better than lc solution.

[@ameynaik2743]

Like your explanations a lot! perfect!

[@yuantu2236]

Great job!

[@browniebro]

This was super helpful, thank you!

[@babybear-hq9yd]

Thanks browniebro!

[@joevice376]

love your explanations man, keep it up!

[@babybear-hq9yd]

thx a lot joe :)

[@andrewyuan7881]

This video was very helpful!

[@babybear-hq9yd]

thanks Andrew!

[@今天比昨天厲害]

Good stuff! Thanks!

[@willowsongbird]

THANK YOU for this explanation!

[@babybear-hq9yd]

no worries!

[@lukt]

Awesome explanation, really helped me a lot! You're really good at explaining things simply! :)

[@babybear-hq9yd]

Thanks a lot Luca :)

[@Paunitza]

Great explanation. Thank you!

[@babybear-hq9yd]

My pleasure :)

[@rahulbhardwaj4568]

Great Explanatin! thanks

[@babybear-hq9yd]

Thanks Rahul!

[@rydmerlin]

Did you ever interview at FAANG? And why are you so happy when doing Leetcode ? :-)

[@babybear-hq9yd]

1. i don't work in the SWE space
2. i was young and naive :')

[@user-sr1pk3yy8b]

Hi! Thanks for explanation. Struggling to understand line 18 here: tail = node. What's the purpose of this if right before this line there is tail.right = node on 13?

[@prashanth123456789]

tail.right on line 13 sets the next node to the current tail, tail=node sets the new node as the tail