Sliding Window Technique - Algorithmic Mental Models

[@omkarpat]

One of the best explanations of this concept. Please make some more "Algorithmic Mental Models" based videos.

[@CEOofTheHood]

dude u seriously need to make more of these. Ill pay for them.

[@andrewblaines]

Agreed! These are great. More "Algorithmic Mental Models" for dynamic programming, backtracking, etc. would be extremely helpful. Thanks for the video!

[@veliea5160]

it is not one of the best, it is the best

[@Mogwai88]

@@CEOofTheHood Yes. Please make more of these. Especially with your new freecodecamp traffic this would really take off.

[@AhmadRafique-yn8ry]

Agreed

[@jacktrainer4387]

I've never before seen a CS video that approached CS like math (i.e., here are the concepts, here are some keywords to look out for so you know when to apply these concepts, here are a few examples). The world needs 1,000 more videos like this (DP, Linked Lists, Trees, Graphs, etc). Fantastic work!

[@fahadhayat_]

Dude please create a playlist for the other techniques as well!!! This is gold!

[@zappist751]

Does he have a playlist for this?

[@pjmiravalle]

I came across this video after struggling with sliding window problems in preparation for my upcoming Google interview, and just wanted to thank you for the super clear explanation. I'm feeling much more confident with these problems now. 👍

[@tomrobinson8290]

Did you get into google? How was the interview!?

[@maggiesayabie]

Who even has the audacity to dislike such a video?? The best and simplest explanation of sliding window concept i have ever come across. Thank you sir!

[@priyamrai5915]

will it work if array has negative elements. I think no.

[@maxdrojjin6984]

This is really the best video (or any, really) explanation of the topic I have found. Really hope this would become more popular. Thank you!

[@brijeshhota550]

I knew about Sliding Window but never fully understood the pattern of questions to target or saw it visually represented so well and simply. You should definitely consider doing a playlist of these patterns, super intuitive.

[@parthabhowmik4747]

The best lecture on sliding window technique

[@shriduttkothari]

This is the only video which made me understand dynamic window sizing algorithm... Thank you so much 🥰

[@nan5715]

I like that you actually name your variables in a meaningful way. 👍

[@shrey4489]

Great explanation! I'm a visual learner and I can see myself imagining these sliding window animations when I face array problems like this in the future.

[@SauravTiru]

Learning from you to for my job hunt in Zurich, I shall get back to this video once I get my job ! Thanks in advance for everything!

[@omaryahia]

a simple visual explanation, detailed, with variants this is amazing, thank you

[@sujityadawad]

Was struggling a lot with sliding window problems earlier, your explanation really simplified those problems. I really appreciate your effort. Thank you! Please post more videos.

[@silvahawk]

I have always been calculating the first windowSum in a separate loop before starting to "move" the window in a separate loop. I never knew you could do both within the same loop without using a nested loop. This is amazing!

[@igcmjoeabar8475]

Guys, seriously, just study this video! It will help tremendously!!! Thanks for such helpful content

[@neerajkulkarni6506]

This is fantastic! Please make more of these 'mental model' videos. There too many videos out there that jump straight to the solution without any discussion of how to approach and generalize a problem. We need more video's like this!

[@peacebakare]

This is the best explanation on Sliding Window I have seen so far. Thank you for the detailed yet simple approach to explaining the concept.

[@sedgeralt]

Hands down the best explanation of the Sliding Window technique. Please do more algorithmic mental model videos!

[@billycheung7095]

Thanks you with tear. You constructed a solid framework for handling sliding window in my head.

[@for461]

I am from India. THese are helping us cracking interview. THank you very much. Complicated topics you are making us understand very easily.

[@syedaffanhameed14]

I found "Algorithmic mental models" is a great concept for solving problems please bring more videos like this.

[@for461]

you are a very good teacher in layman language you are reaching. We will surely crack interviews with these

[@weijinghuang8518]

This is the best video I've ever seen on this topic "sliding window"! It does not only solve one or two interview questions for me but also solves a group of problems. More than that, it teaches me how to spot this group of problems. Fantastic!!!

[@yasirayaz7832]

Nice explanation. I am glad I landed here while searching for all possible solutions for solving the array problems

[@frozen_tortus]

I'm absolutelly blown away how this is explained.

[@dr_920]

One of the best tutorials I have even seen. Thanks.

[@svdfxd]

One of the The best videos to explain Sliding windows concept. Request you to make other such videos that will help in tech interviews.

[@codesefod8527]

1. Liked 2. Subscribed 3. Notifications Turned On. Please keep posting, one of best the best explanations for sliding window problems. Thank You Ryan!

[@ShivamJha00]

After watching this one, I could solve even the hard LC problems within 15-20 mins. This is a gem of a video on this topic. Hope you make more of these on other topics, I will literally pay for it

[@TheN8H]

I've really struggled visualizing this algorithm concept and this video is extremely intuitive and detailed. Would love to have more of these videos.

[@rahulkushwaha7742]

I struggled for longest substring problems and now here we are i solved it by my own after watching your video thanks buddy

[@billyfigueroa1617]

What an excellent, well paced, well explained video with explaining the theory but also showing it in examples THANK YOU! The more you research the more you come to understand that trying to solve all these problems individually with out knowing about techniques like these, is so painful lol

[@TheDev05]

The animation for second technique: dynamic SW is just awesome, I loved it

[@Finn-jp6pn]

Would love more of these 'Algorithmic Mental Models' videos. I'm sure everyone here would appreciate them.

[@Finn-jp6pn]

@maryam I'm sure there are more capable people here who can help you. I don't have much experience with Python.

[@ibrahimhegazi3955]

You might be a professor or a normal student, but your explanation skills are exceptional. Add to that most of the videos explaining algorithms do not include such an amazing visualization for the data structures that we are working with. I hope one day you will have the free time to make a full algorithms and data structures for competitive programming course with such an amazing visualization. Hope you the best sir whereever you are.

[@pravinyadav8372]

This video gave the confidence that I'll mostly won't stuck in this topic anymore...Thank you : )

[@rafaeldietrich8050]

This is probably hands down the best explanation of the Sliding Window technique i've seen. Great job!

[@ionguzun3952]

agree 100%!

[@divyanirao4279]

This video is amazing. hope you make more videos on "mental models" such as for dynamic programming.

[@michadobrzanski2194]

Max subarray sum of k is also a dynamic programming problem. You reuse the previous max result and update it. So it is like dynamic programming with space complexity O(1).

[@vicente3j]

Only 219k views... no way. This is by far some of the best CS-related content on KZbin, hands down. Amazing!!

[@MrAlmas01kz]

One of the best and easy explanations of this concept. thank you so much !

[@francksgenlecroyant]

Thank you @Ryan Schachte for clarifying the sliding window technique and make it so simple just like that. I hope you upload a lot more vids like this bro !

[@harshitmittal1217]

Literally the best explanation of sliding window technique.

[@cse9003]

why suddenly when i graduated all these channels poped up when i needed them the most , bro you are the best

[@pbard42]

Wow great explanation, love the ‘teach a man to fish’ approach to the algorithm problems!

[@danielc4267]

31:11 The reason you "add 1" isn't because the array is indexed at 0. It's because the start element gets subtracted and it needs to be added back. Thank you for making the video :)

[@alphapenguin9748]

Please make more algorithm videos, you're literally the best explainer I have found on youtube.

[@akhalil3482]

we need more of this series! please do more!

[@Ore00000]

I greatly appreciate the clear explanation of the dynamically resizable sliding window, it cleared up some doubts I have about the algorithm. Cheers!

[@vincenthou6459]

This is such an awesome video by abstracting the idea of sliding window to tackle a group of specific issues with similarities. Regarding the question of smallest subarray for a given target, I think we need to add the constraint that every element in the array is positive. Otherwise, the sum can be reduced even if we grow the size of the window without dropping the front one. 28:37

[@potatocoder5090]

I have struggled with this concept for a really long time, but not anymore :) Your explanations were absolutely beautiful and I'm excited to solve some sliding window problems now! Can you please create more Algorithmic Mental Model videos? We'd all be super grateful!

[@SushilDubey171]

This is the best video for sliding window techniques

[@amitrajitdas31]

One of the best explanation on YT

Thanks, I flew through LeetCode Sliding Window challenges after watching this.

[@WhosShamouz]

Rewatched some parts of it. Perfect, breathtaking. The best tutorial ever.

[@Sedri14]

Best explanation so far. Thank you

[@plashless3406]

This is amazing. I wish I could hug you for this best explainantion. I learned a lot.

[@alonbrim]

This video is pure gold!!! Great explanation . Everything is very clear. Thank you very much!

[@SantoshPrajapati-ps9nj]

This is the best explaination that i have came across 🙂

[@Maybec]

Thank you for your help. Please add more videos to the algorithmic mental models series. please and thank you!

[@drkenny7928]

for python lovers on the first question cur = 0 _max = cur t = [4,2,1,7] for i in range(len(t)): cur = sum(t[i:i+3]) if cur > _max: _max = cur else: cur = cur print(_max)

[@muskulanikhil3623]

Fantastic, you should seriously consider doing dynamic programming series. Just 36 mins but got avery clear understanding of the topic

[@thatChillLife2037]

dude I am only 2 minutes in and I've liked and subscribed! Between the visuals and your consice explanations, the sliding window technique (which I never thought I'd understand) makes SO MUCH SENSE! Thanks so much :)

[@brenoaps]

A series of algorithmic mental models would be awesome, great work!

[@cocoarecords]

wow this deserve to be a series very underrated!

[@back2bits]

This is -by far- the best video on this topic I have seen. Thanks for taking the time to produce such a great content. Keep it up!

[@giampierovanzzini1430]

This is a really great informative video, thanks for the hard work! I really like the breakdown to creating a mental model

[@sivanyaniv64]

this is the best video I was watching about sliding window - thank you !!

[@SolamanRaji]

Great explanation and example of sliding window.

[@martinlacsamana7534]

Only 13 minutes in but this is beautiful so far. Thank you.

[@uzvalmallepeddi8962]

I wouldn’t resist to pay a 1000$ to watch such videos. Brilliant piece of work! Hope you do more videos on “Mental models”

[@debugquan]

Great guy. I was hesitant to watch the whole video but you were so informative that I actually learned something for many use cases. Thanks

[@GoblinBlaster3000]

Great explanation, didn't know anything about sliding window before this video and I got enough information where I could implement it no problem.

[@B-Billy]

Hand down, the best explanation. Great work🎉 thank you❤

[@mental-block]

solved many problems after watching this video. Thanks !!!

[@TechieIndia]

the best lecture available on any platform for SWT. I loved this video and your way of explanation.

[@LamaSonmez-w1g]

very declariative and well explained , thanks

[@davidodia4603]

Incredibly simple explanation. I felt like a baby being handed his lego building blocks. I absolutely learnt a hitherto abstract concept, i will never forget.

[@edavar6265]

I wish you made more of these videos. Thanks a lot.

[@yynnooot]

Do you have a series for these Algorithmic Mental Models? Your video was extremely helpful and I would love to see more of these!

[@tarungopal3065]

Explaind the Topic in an easy manner .Enjoyed the vedio and Found Really Helpful.

[@TaraChand-eg6uk]

@Ryan : In case of smallestSubarray method, if targetSum is 9, it is failing, need to add another condition in it. private static int smallestSubarray(int targetSum, int[] input) { int currentWindowSum = 0; int minWindowSize = Integer.MAX_VALUE; int windowStart = 0; for (int windowEnd = 0; windowEnd < input.length; windowEnd++) { currentWindowSum += input[windowEnd]; while (currentWindowSum >= targetSum && windowEnd > windowStart ) { minWindowSize = Math.min(minWindowSize, windowEnd - windowStart + 1); currentWindowSum -= input[windowStart]; windowStart++; } } return minWindowSize; }

[@klaaskabini5407]

Best explanation so far. Please make more videos on algorithmns

[@arnobchowdhury9641]

Great explanation and thanks a lot. The way you visualized really helped to understand the concept.

[@briankimutai515]

The best sliding window technique I’ve come across thus far

[@wittyhumour29]

Amazing explanation of the Sliding-Window Technique. Would love to see more of Algorithmic Mental Models.

[@williamahern6219]

This is an awesome, thorough explanation of the sliding window concept and is easy to follow!

[@saugatkarki3169]

I looked into it and looks like this "Algorithmic mental models" video is the most viewed video on your channel. Upon reading the comments, people seems to really love it and are asking more of it covering other topics. Genuinely curious, why didn't you make more of this type of vide, that clearly seems to be the most viewed one on your channel?

[@leonardo_magallanes]

Thank you so much for this video, I helped me a lot to understand this concept better.

[@arijitpanda7321]

Best video for sliding window. Please make one for 2 pointers

[@DonMamaril]

I loved, looooved the format of this! Please continue to do these videos. Extremely helpful!!

[@duynguyenanh9267]

Give this guy a Nobel prize !

[@arunponnusamy9187]

Clear simple explanation, very easy to follow, thank you !!

[@nehashimpi7643]

This is the best video I have seen!!Please please please make more videos on Algorithm Models!!

[@Shiva-zy7jq]

Best video on youtube about sliding window technique. Thank you so much.

[@abduuhany]

I love the idea of "Algorithmic Mental Models"! Thank you so much for explaining this perfectly and I'd love to see more videos for this idea!

[@sierraobi311]

Please do! I want to recommend them to all my friends.

[@tusharborole6155]

Best explanation so far

[@SheikhEddy]

Please make more videos like this, it's one of the best things I've seen on youtube

[@priyakumar6697]

Please make more of these! This was so helpful thank you.