Depth First & Tree Traversals (Pre, In, Post) Explained

[@cannabisanomaly]

I love your interjections of saying things like "just for funsies" 😆 it really brings some comedic relief to an otherwise intense algorithmic challenge for those of us just getting acclimated to this sort of thing. You're a breath of fresh ADS air on youtube!

[@ramtejeshm9344]

Honestly, his explanation is very good. What I tried to understand but couldn't even after trying 2 continuous days, I understood it just within a few minutes with his explanation.

[@banelenyide9087]

this explanation is waay better thank you

[@aaftabpinjari4747]

Here after your Dynamic programming video on @freecodecamp.org .It was Awesome ,Thank you very much for the Knowledge. Subscribed!!

[@CoderbyteDevelopers]

Welcome aboard! -Alvin

[@neelpatel8821]

Awesome explanation! Waiting for your next videos

[@amrhossam6851]

That was AMAZING !! , Really liked the video , the content , how you explain , literally EVERYTHING was perfect !!. My only comment is that I want you to solve real problems.

[@zaid4690]

Thank you!

[@maramcharanteja6320]

sir ur explanation is very well. please do program in c/c++. because so many students will be teached c/c++ in college. so it will be so helpful if u change ur programming language.

[@benmontgomery1111]

Thanks so much!

[@mohammadhoseinabbasi9993]

how does the tree recursively goes back to the parent after it reaches null in a node?

[@mohammedfaseeullah6095]

why youTube take too much months to recommend this playlist

[@bajal123]

Hey Alvin, really enjoyed your dynamic programming course. I love the way you explain stuff. Thank you for what you do.

[@CoderbyteDevelopers]

No prob. Excited to hear that it was useful. -Alvin

[@ragsbigfella]

Hello Alvin.. I watched your Dynamic Programming video(from freecodecamp). I really love the way you explain different concepts. Do create more videos on computer science basics, algorithm and design. Thank you so much.🙏🏽

[@harishjulapalli448]

Came here from freecodecamp.org. Awesome explanations!! Subscribed.

[@CoderbyteDevelopers]

Thanks for watching!

[@jasonschannel]

Hey Alvin, just finished watching all your videos. You’re lectures/demos are by far the best out there! As a budding self-taught programmer, you’ve helped immensely in my understanding of data structures and algorithms. I hope there’s more in the works!!

[@electra7840]

Please do a video on greedy algos and have the differ from DP

[@JS-dz4bz]

Alvin's explanations are so easy to understand, its been months since new content has come out on this channel. I hope he's cooking up some new content. Graph theory/Greedy algorithms would be awesome

[@kongzilla2897]

Thank You Very much for such amazing vedios .....I really liked ur Dynamic Programming course..... Looking forward for more vedios.. Thanks again :)

[@burhanuddinmerchant877]

Here from @freecodecamp.org , I'm hooked to your style of teaching , already subscribed!! waiting for this series to continue on to graphs as well!

[@CoderbyteDevelopers]

Glad to hear you are finding value in the content! -Alvin

[@imcabezas]

Thanks for sharing! The recursive implementation is indeed simple and useful.

[@jasonliu9790]

Alvin is the best!!! he deserves so many more views like his dynamic programming video. He is a GOAT

[@Raghav1205]

Your video on dp was very good please consider covering more advanced dp problems, and also make videos in general too.

[@dmoney_thegreat]

How you handle a tree that wasn't binary? Let's say you had 4 children of a node.

[@mandihaase2744]

Oh my goodness! Can you make videos about ALL data structures and algorithms?? Concepts that just haven't "clicked" for me are finally making sense thanks to your amazing, concise teaching style. I just completed your freeCodeCamp video on trees and it was AWESOME!

[@fahadm443]

These slides are awesome. Which platform do you use for creating these beautiful slides? Excellent content btw.

[@a_maxed_out_handle_of_30_chars]

wow, simple, concise and clear thank you alvin :)

[@thurmansanders3072]

Thanks for this excellent explanation!

[@blitzpark1250]

HI Alvin, it has been a while since you did not make an new videos on tress.... please consider making videos on avl and red black tree which are self balancing as you know.

[@electra7840]

Easily the best channel in the space, better than every other YT channel atm

[@juliaa7321]

Thanks Alvin! Very clean & clear explanations. Please don't stop making more videos.

[@goelnikhils]

Amazing Explanation. Amazing

[@nbktechworld]

Good explanation!

[@dev-skills]

Depth First traversal is very well explained with nice visualization

[@cmdv42]

🙌💯

[@AndrewCLC]

Been reviewing my data structures and these videos are excellent. I appreciated two things especially in this video: @4:40 a brief review of how the binary tree is constructed so I didn't have to go back to the previous video and @24:50 the stepping through of that tricky recursive algorithm.

[@johnsoto7112]

A1 content!

[@88spaces]

Your explanation is very helpful. I like the way you used the stack object for the depth first approach. Thank you.

[@AmCanTech]

DFS is same as pre-order? and please make more videos!!

[@pigeonjim]

I have been struggling to get my head round how the post, pre and inline are connected. You made it so easy to understand. Thank you

[@havefun5519]

The Pre, In, Post explanation is really clear enough and easily understand. Thanks dude.

[@compassblue33]

What software do u use for your diagrams/drawings?

[@LazyShady]

You just saved me soo much time. Thank you