Validate Binary Search Tree (LeetCode 98) | Full solution with animations and visuals

Chapters:
00:00 - Intro
01:02 - Problem Statement and Description
03:29 - A level order traversal won't work
06:06 - Different tree traversals
10:07 - Using in-order traversal
12:29 - Dry-run of Code
15:27 - Final Thoughts

📚 Links to topics I talk about in the video:

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#leetcode #programming #interview

[ghanashrim]

Every time I search for a problem explanation on youtube, I have this immediate sigh of relief, if your video shows up 😁

[leonelmessi]

It doesn't matter how long the video is... Clarity is the key to understand and you have it in your videos. Keep it up!

[everyontech]

this is what i was looking for. The video has explanation of 12 min and 4 min on coding part. Very few youtubers does this. I like your approach. Thank you

[EddyTriedCoding]

update: I really appreciate these tutorials and plan to support your work soon. I had requested coverage on algorithms' time and space complexity, but Nikhil made me realize they are already included in the videos. Thanks for providing such valuable content. Big thanks and God bless you!

[knowingly-unknown]

Great aproach Nikhil, you are a saviour

[sahilanand]

I code in cpp, and your solutions are in java, it turns out to be pretty productive for me because i cannot copy it directly and had to use my own brains for the sake of doing the problem hehe...love your videos <3

[athulsebastian]

Thanks, my brother. You're explanations really help me understand.❤

[navyashreeamam]

Hi sir, actually I seen Ur backtracking video, very simple explanation I understand easily i commented in that video to make problem solving videos, I didn't get how to solve.
thankyou 😊

[Babas]

great explanation, thanks for doing this!

[maheshj]

you are mistaken at 2:04 to say that Subtree 5, 1, 4 satisfies the criteria of a binary search tree. Clearly the right child (4) is less than the parent (5)

[prakashnavin]

very nice explanation please keep making such videos

[parthmodi]

Great Explaination .Pls keep making more vidoes

[sanjeetnishad]

Actually, in the first example, you selected node 5 to check if it satisfies the bst rule and said it does but i think it doesn't. The roght child should be larger than the node, shouldn't it?

[kappyM]

It will be better if you will explain iterative and recursive both of solution of every problem

[groww-india]

Hi Nikhil how you are using this red hi-lighter while explaining could you pls tell.. it's look nice.. which tool you are using for Presentation

[kanaramjangid]

Others YouTube videos🤡🤡
Nikhil sir 👿👿