A CS tutor that speaks clearly and concisely??? Very rare!

This guy's : is this ever impacting u? Me : what? It's saving my life

I wish I just watched your videos instead of taking my algorithms and data structures class

Hey man. Been watching your videos for a few weeks. Your explanations and thought process is exactly what I needed to get a refresher on all things ds&a. I just recently landed a job offer at a dream company, so thanks a ton for all your hard work and help!

2022 and you're still helping people. I'm not enjoying my classes but watching your videos give me reassurance that I really like these topics. Thanks a lot man!

Don't stop doing what you're doing! These videos have been an incredible help in getting my head around algorithmic time complexity for my computer science masters - thank you!!

Dude. Thank you for putting the time in making these videos. They are IMMENSELY helpful! Don't burn out making them, take your time, do them at your pace, cause they are some of the best in the business. Really, you are awesome.

This is one of the Back to Back SWE videos have helped me understand "Introductions to Algorithms" - a book probably aimed at people who already understand the algorithms in question. I am so glad for this series. Thanks a lot!

It's impacting. In a good way. Most professors in most cs programs really don't go into detail about these algorithms much. Even grad school programs have that problem at times because then it seems like you should know these things. You're doing a good job and hopefully this channel and others stick around.

FINALLY someone who explains what a pivot is. Pivot concept is key to understand how quicksort works and also to understand "the kth largest element in an array" problem.

You are my favorite! What is really helpful is that you explain the idea, which is what a lot of videos don't do. Mosts just focus on the coding, but not in the concepts. I'm very thankful I found you!

Stumbled upon this during my interm. algorithms class at UC Riverside. Honestly dude, your short videos do more than entire lectures for my understanding. Thank you.

You're one of the most eloquent tech guys on youtube. I just started programming this month, and your video helped me implement quicksort in JS!

now we are at 161k thank you for all your efforts love from india

Table of Contents: Talking About Stuff 0:00 - 1:05 Introducing Quicksort 1:05 - 2:04 The Split Subroutine 2:04 - 2:43 The Partition Subroutine 2:43 - 3:24 Partitioning: Choosing A Bad Pivot 3:24 - 10:34 Partitioning: Choosing A Good Pivot 10:34 - 15:11 Analysis: Choosing Bad Pivots 15:11 - 19:06 Analysis: Choosing Good Pivots 19:06 - 22:07 Analysis: Good Pivots - Work Done At Leaf Level 22:07 - 23:37 Flashback To Merge Sort 23:37 - 24:01 Why Quicksort Is O(n*log(n)) 24:01 - 25:02 Wrap Up 25:02 - 26:12 Errors: 3:25 - 15:11 -> I messed up how I advanced 'i' in both examples. I should have started 'i' at left - 1 everytime...my bad. What should happen is that we should start 'i' at 'left - 1' and anytime we swap into 'i' we always advance 'i' FIRST before the swap. These errors don't change the fundamental job of 'i', which is to keep the tail of the section of items less than the pivot. Make sure you take that away from this. 4:02 -> Forgot to edit that text out haha 24:23 -> This is only the exact bound on the best case. Not the average case as well. The code for quicksort is in the description. Fully commented for teaching purposes.

Amazing Videos ! I love how you explain everything at the deepest level which is exactly what I need to understand those algorithms properly :D

One of the best instructors on KZfaq! Thank you for your contribution!

I've never understood something so clear... thank you so much! :')

you have been a huge factor in helping me understand some of these concepts. Please keep it up. You're the first place that I go when I'm having trouble.Thank you!

2021 and your explanations still helps, a lot. thank you so much! gonna binge on your vids and hopefully it helps my journey throughout this CS major :')

"We do not place an item, into the section, that is less than the pivot." - just needed that much. Thank You, Brother! #keepUptheGoodWork.

dude you're literally the only reason why I understand these algorithms. My CS 101 prof teaches so weirdly, you should really consider pursuing academia if you haven't already

Impact ?? it's life saver.... when ever i get stuck on some basic concepts ..this is the place i jump to... keep up the good work.

Thank you for making these videos! The way you explain and break down things are great! They are helping me so much here in 2022 and I am going to try and watch all of them. I wish you much success in your career!

I have never commented on a KZfaq video before but thank you so much for this! Your code for Quicksort actually makes sense, which is something I have not found to be the case for other sources, including Cracking the Coding Interview. I have subscribed :)

Wonderful tutor! With each passing days, I am falling in love with Algo's, good job brother..looking forward to have more lessons from u.

You had a great impact on me!!! You are a blessing!!!!

man I love your videos, your teaching skills are amazing!

YOU ARE HAVING AN IMMENSE IMPACT. AND THANKS FOR IT!!!

This guy is a genius, find an easy and intuitive way to explain.

Thanks for hard work, I can see how much effort you put in this video.

Hey man thanks for posting these videos they are helping me a bunch, I'm about a month out from my job hunt, using your videos to prep while I continue to learn some Angular. Going to pitch in what I can for the Patreon thanks again !!!

You're very good at explaining. I watch your videos and they make me very happy

You are gifted! Thanks for making these concepts easy

I haven't understood quicksort for 2 years, thanks a bunch man

You're so cool ! Thank you for your videos, now I'm more confident about passing my exam :)

Because you asked to. I'm posting again to let you know that you're helping me so much. Thank you for your help. The impact is huge on my life. These resources are some of the best most helpful videos on interviewing I've seen.

TY so much. Clearest quicksort video on youtube

You are a legend. I always go watch you on here before a class :)

Continue! You are doing great, man! Thanks a lot!

If i could like this 100 times i would 😩omg best video on youtube about quicksort! I literally have watched all lol thank you for making these videos

give this man a gold metal! respect!

Perfect! I really love that, you explain it as good as it's posssible. Nice.

probably the most easy to understand video on quicksort. Thank you

This is so well presented. Instant subscribe. Thanks man.

One of the best Tech -tuber, has an website on interview prep and still gives his best in youtube explanantions and dont advertise his website on youtube like tech lead , clement does, tech-lead and clement should learn from him on how to give best in youtube and stop honeytrapping vulnerable kids

What a great teacher, my god! always amazed by your skills ❤

Your videos are really awesome and have helped me alot in my data structures class for LSU. Thank You!

I wish i could like the video million times. Thanks for the gift.

For sure your videos is causing a positive impact. At least, for me this channel is so valuable. Great job man!

I love your videos! Keep up the good work!

This is the only vedio I found which tells exactly what exactly is PIVOT.. THANKS BRO

Finally understand quick sort! Thanks so much

Thanks for this, I was actually wondering couple days ago why there isn't a sorting video for quick sort.

Congrats for 10k!

You explanation is amazing. be assured that one day I will take few days off to watch all your algorithm themed videos :)

love you sooo much, this video really helps!!!

why is this guy better than the lecturer in my course that I paid $2.2k for?

Thank you so much! You're a genius in your explanation way

Thank you so much,you probably dont know how much this means to me. Love from india🇮🇳

Buddy I love your videos, thanks a lot

Teaching is an art and you are an artist :)

this channel deserves more than million subs

Subscribed! Very good explanations, please continue doing what you do.

thank you for sharing. These videos have been a big help

Hey Bro.... Just wanna say... Keep up with your videos, they help students like us all around the globe..... ❤️❤️❤️❤️❤️❤️

It's glad to see that my favorite basketball player Chris Paul teaching the algorithm courses.

Another great video my friend!!

This channel made me love algorithms again

Very nice explanation. Thank you!

ı hated data structures lectures before thıs man but now I can easily understand everythıng .thank u a lot .You are my hero :)

I guess you have not enough subscribers and watches! One of the best CS videos I ever seen. Thank you!

Yes! Just what I need!

I like your videos even before starting .. that's how much I like your content..keep making this kind of videos pls :)

Thank you. Amazing video :)

best explanation on quick sort !!

SERIOUSLY!!!! Thank youuuu, u'r the best ❤️❤️❤️

Such a great explanation

Brilliant work!!!! Absolutely brilliant. Thank you :-)

this is an awesome video!

You are just Awesome Bro. Love you.

Thank you for all that explanation. 🤗🤗🤗

Very well explained, thank you!

You helped me survive an algo class 💯

Yet another great video. Where were you when I was learning this stuff in undergrad? :-)

thank you very much, very clear explanation.

Hey man thanks for the videos

Really thanks for the detailed explanation, this video solved my questions watching Wiki of Quicksort

You are a real man

Excellent explanation of Lamuto partitioning

Thanks man,good explanation.

you are amazing!!! thank you so much!!!

Great job bro

Hay man I just want to say thanks for all the videos because of that today I am having f2f interview in Amsterdam. I am not sure I will pass or not but you gave me enough confidence to face it.. :) cheers

Dude, you're gifted! Thanks so much for helping us to get our dream jobs :D

Great explanation ever

Your vids are amazing

thanks your video, it explains very well.

You are awesome dude

Hey, my friend. I'm an SDE with a couple of years of industry and academic background. I really appreciate your effort to explain this algorithm. Regardless of the commercial purpose behind the video, your explanation is mostly accurate and easy to understand ( Though I have to say, it's better for you to put the average case before the worst-case example in this video.) Carry on, looking forward to new content from you! btw: I have the confidence to say many, yes many, explanations of quicksort from some others are WRONG. Well done, sir!