LeetCode was HARD until I Learned these 15 Patterns

[@ashishps_1]

Thanks for watching guys! Making this video took a while but it leveled up my editing skills big time 😊 Get a FREE System Design Interview Handbook (75 pages) in your inbox by subscribing to my free newsletter: blog.algomaster.io/

[@siddhukanchumarthi961]

sorry sir, we didnt notice editing skills in the first go, your whole content dominanted 100x. thank you so much.

[@arthkulkarnihere7274]

Please make videos on common patterns in LinkedList, tree and graphs

[@c_213sse]

i need you to detail every pattern with a leetcode example in the form of multiple episodes or series

[@mounikathalla3440]

you deserve respect .

[@deepakpatil7063]

Thanks it was best video I have ever seen in my life

[@vaibhavshukla2658]

0:33 => Prefix Sum 1:25 => Two Pointer 2:05 => Sliding Window 2:54 => Fast & Slow Pointer 3:39 => Linked List In-Place Reversal 4:36 => Monotonic Stack 5:26 => Top 'k' Elements 6:14 => Quick Select 6:33 => Overlapping Intervals 7:25 => Modified Binary Search 8:56 => Depth-First Search(DFS) 9:32 => Breadth-First Search(BFS) 10:11 => Matrix Traversal 11:04 => Backtracking 11:52 => Dynamic Programming

[@girdhar3224]

Thanks

[@RameshKumar-ng3nf]

Thanks. How do you collect these timestamps ? Do you see it manually ? or use any script ?

[@bogdanpopescu1401]

Quick select is not actually discussed, instead there is Binary Tree Traversal at 8:03

[@vishwasmehra3644]

Commenting here so i can comeback and check this resource. Wish me luck for my interview preparation :)

[@DMorning-l6j]

Thanks

[@maheshkoti6506]

You have solved 1583 problems on leetcode, that's great. But even greater is that by making this one video you are solving millions of DSA learners problem.

[@RikerWilson]

Prefix Sum 303. Range Sum Query - Immutable 525. Contiguous Array 560. Subarray Sum Equals K Two Pointers 167. Two Sum II - Input Array is Sorted 15. 3 Sum 11. Container with most water Sliding Window 643. Maximum Average Subarray I 3. Longest Substring without Repeating Characters 76. Minimum Window Substring Fast and Slow Pointers 141. Linked List Cycle 202. Happy Number 287. Find the Duplicate Number Linked List in-place reversal 206. Reverse Linked List 92. Reverse Linked List II 24. Swap Nodes in Pairs Monotonic Stack 496. Next Greater Element I 739. Daily Temperatures 84. Largest Rectangle in Histogram Top K. Elements OR min/max Heap 215. Kth Largest element in an array 347. Top K Frequent Elements 373. Find K Pairs with Smallest Sums Overlapping Intervals 56. Merge Intervals 57. Insert Interval 435. Non-overlapping intervals Modified Binary Search 33. Search in Rotated Sorted Array 153. Find Minimum in Rotated Sorted Array 240. Search a 2D Matrix II Binary Tree Traversal 257. Binary Tree Paths 230. Kth Smallest Element in a BST 124. Binary Tree Maximum Path Sum 107. Binary Tree Level Order Traversal II Depth First Search 133. Clone Graph 113. Path Sum II 210. Course Schedule II Breadth First Search 102. Binary Tree Level Order Traversal 994. Rotting Oranges 127. Word Ladder Matrix Traversal 733. Flood Fill 200. Number of Islands 130. Surrounded Regions Backtracking 46. Permutations 78. Subsets 51. N-Queens Dynamic Programming 70. Climbing Stairs 322. Coin Change 300. Longest Increasing Subsequence 416. Partition Equal Subset Sum 312. Burst Balloons 1143. Longest Common Subsequence

[@esmamanyt7048]

thanks buddy

[@emmad-ul4tn]

legend

[@subratkumarnayak2560]

You have my LIke and my respect...

[@eldorado6796]

nice bruh 😎

[@anshpradhan1954]

Bro singlehandedly busted the entire DSA ED-Tech community, by just providing the most asked and important patterns to practice before an interview, wow, thanks Ashish

[@shreshthjha997]

Indeed and just in 15 mins 🙏

[@Ashu_143_]

Ab kya kare, Ashis nam k bande hote he ese h 😌

[@girdhar3224]

​@marcush3ll673 but he added some more questions patterns

[@chefbubbles4258]

As a beginner programmer, while I did not understand everything, I was particularly amazed at how simple you explained what a sliding window was: subtracting the left and adding the right. Just that sentence made me completely understand it and I felt like I fully unlocked another tool to my algorithm arsenal. Thanks so much!!!

[@vcankeklik]

No bs, no gatekeeping, no useless descriptions. Thanks, sir.

[@darshit-raj]

Let me be honest. The content here is super underrated on KZbin. I saw this late and realised so many of such patterns were asked to me in my interviews which I failed to crack. MMT, Walmart etc. Terrific content.

[@redonthebeatboi]

Let it remain underrated bruh. You know what i mean XD

[@xalspaero]

You just compressed the crux of leetcode problem-solving techniques down to 13 mins. Well done!

[@jonatasjcgrendering8436]

Thanks for sharing. I had an interview at Uber Brazil. Since I had no DSA training, I didn't do well. But now I'm learning a lot from your videos. I'm improving a lot with these tips.

[@ashishps_1]

Great to hear that you are finding my videos helpful!

[@Blackoutfor10days]

​@@ashishps_1bkl body bana jra

[@kalogs13]

Opa maninho, vou fazer essa entrevista tambem, tem alguma dica?

[@jonatasjcgrendering8436]

@@kalogs13 Cara se for Software Engineer 2(L4) a que eu fiz. Cara é DSA, tipo leet code. Como eu não tinha pratica não fui bem. O que eu tirei de lição é que o cara tem de ter praticado muito. Um exercício era de topological sort . Não sei teu nível de experiência com DSA. Se não me engano foram 4 questões. Boa sorte mano. Na entrevista com recruiter eu fui bem ela me fez acho 4 perguntas eu respondi na mosca, testou meu ingles e perguntou a complexidade de dois algoritmos e o porque da complexidade. Uber parece ser uma empresa top, gostaria de passar la.

[@kalogs13]

@@jonatasjcgrendering8436 o meu é l3, mas também não tenho muita prática com esse tipo de exercício, não tô expectativa alta. Mas só de ser procurado pela vaga e passar pro código já fiquei feliz kkkkkkk, agora é praticar

[@foxrumor]

This is genuinely one of the most useful videos I have found all month.

[@siddhukanchumarthi961]

i have seen so many suggestion videos, i felt some lagging feeling with many. this is the first time i am commenting for a dsa youtuber. i just want you to be happy in your life. you choose to share your knowledge and you did it in a very good efficient way. cant be not grateful. thank you so much sir.

[@ashishps_1]

I am so happy to hear this ❤️ Thanks for your kind words and wish you all the best in your journey 👍

[@shashikanthacharya4027]

This is one of the we'll structure video I ever watched. Great content. Literally I watch videos at 1.5x but this one at 0.75x. Cuddos to your efforts.

[@stuarthys9879]

Awesome video. Probably the first time I have needed to slow down the video to understand what is going on!

[@ojaskumar2355]

Prifix sum Two pointers Sliding window Fast and slow pointers Linkedin list in-place reversal Monotonic stack Top K elements Overlapping intervals Modified Binary Search Binary tree traversal Depth first search (DFS) Breadth first search (BFS) Matrix traversal Backtracking Dynamic Programming

[@shankar7435]

@@ojaskumar2355 Thx

[@muhammadafnankhan5955]

thanks

[@shashwatkumar6965]

I would add Greedy and Union Find also

[@pranavdarekar5811]

after watching this video i am quite confident i am on right path i too see these patterns frequently and for most of the problems you just you one of these approaches or logic if you notice it while solving your questions.

[@lakshmi8347]

This is an amazing video with explanation + visual representation + base code + top 3 problems to practice !! Please do videos on each pattern, It will make our coding journey lot more easier ! Once again thank you so much for the great content !!!

[@tejaslamkhade547]

One of the best videos for someone who's gonna start solving leetcode contest 👍👍

[@berrywarmer11]

I really love the animations and analogies used in this video. They help to illustrate the concepts in an awesome way!

[@shreshthtiwari7806]

please make more detailed vidoes on the following topics . this was really helpfull.

[@ashishps_1]

Sure, will do

[@devilinside54]

Please make video on Graph pattern

[@devilinside54]

​@@ashishps_1please make videos on graph pattern

[@manoranjanparida4126]

@@ashishps_1 please sir do it as soon as possible

[@charanr6612]

Yes we expect videos for all the 15 patterns you are a life saver untill now I thought like how much I need to learn for competitive programing but after this video I am sure I can easily crack those competitive programing contests

[@ivybrandyn]

Incredible job. Thank you for doing this. I'm prepping for an interview with Meta, Apple, and Anduril and this is a huge help. So glad the algorithm gods brought us together lol 😅

[@vipulmaheshwari3568]

Bro, your videos are a hidden gem. Keep delivering such videos. They are very helpful.

[@ashishps_1]

Love to hear this, thank you 😊

[@jaynair4252]

Amazing video! If you could make a video for each of the pattern, that would be awesome. I'm sure people would love those videos. I know I will. Thanks again!

[@kshravankumar1518]

Thank you so much! I had a major misunderstanding in my coding approach, but this clarification has really helped. I believe it will be instrumental in solving many of my coding challenges.

[@saurabhyadav1038]

You just saved by time and remove my confusion about dsa question solving. You explained presicely about every topics. I want the videos on every topics individually with some examples questions. I really loved it.😊😊

[@Iamine1981]

This is hands down the best recap/summary that I needed to find on LeetCode. Thanks a lot

[@vinodkrishnavellampalli1]

Thanks a lot for such awesome content. This is the best way to approach leetcode I have found so far. This helped me a lot in preparing for interviews.

[@SagarBhamidipati]

Please do a series on all these Leetcode patterns and also a DSA series would be helpful. Great explanation in 12 mins by the way.

[@sivasakthia3950]

i'm depressed for last 2 months for got rejected by zoho,i failed due to the less knowledge about the dsa patterns,after that i never done coding,now i recollectedmy hope to do leetcode and perform well in interviews, thanks alot bro☺

[@Ahmed-xc5be]

This is the best DSA video so far, can’t believe it was just 13 minutes 😅

[@sheikhfaizmeraj2566]

You have revised the entire DSA in just 13 minutes...Great Work !!

[@umeshnaik844]

This video is gold for DSA learner ❤

[@Learn_with_cosmos]

This video should have been created 4yrs ago. aha! This is the best hack I have seen on the internet. I am just watching it and about to tackle those problems strategically.

[@HumbleCoder84]

That was cool. Fully support deep dives (and longer leetcode lists) for each (including the 20 DP algos linked).

[@SyedaTabassum.]

You have provided very good points, but I felft your pace was high, if you could explain each patterns with more details and examples it would be helpful . 😊

[@ashishps_1]

Sure

[@raghavanaliassaravananm1546]

Yes I felt the same. May be you don’t need to be confined with the duration as long as the content and pace was intact ! ❤🎉 thanks for sharing your knowledge and expertise

[@true_indian987]

Yes I too felt the same ..why so hurry bro , content is really great but

[@bhoomijain2193]

yes please can you make detailed video for all the patterns

[@rosepainting8775]

Use chatgpt for that

[@sujalsharma5181]

i can't thank you enough I mean this has to be the most important and helpful for a student new to DSA

[@danielhinds8980]

I don’t normally thumbs up videos but this one deserves one!

[@AbhimanyuYadav-pw1lz]

Hi @ashishps_1, thanks for this video! I remember commenting on one of your videos about DSA question patterns, and today you released this video. Thanks a lot!

[@div0007]

Hey Ashish, thanks a ton for making this video. It's made learning LC so much easier and more organized. You're doing a great service to the coding community. Keep up the good work, buddy!

[@ashishps_1]

Thanks a lot. So happy to hear this 😊

[@khushwantmali2106]

This is a great overview of optimisation code complexity. This will help to grow your channel.

[@ApexPlayground_divine]

Man this is gold, i was asked an interval problem for my Hubspot coding assessment and bombed it, now i know

[@Samson-cx1ts]

Really a great video for College students who are eager to upskill there skill in terms of Problem solving . Thanks for this content 👏

[@pavaichandru6414]

very useful video, to master patterns and algorithms, thank you !!

[@anupthakur489]

its like a homework from you to practice these problems. wanted this video thanku very much sir

[@vinayakgupta8286]

This was crazy helpful. great content. :D

[@vikhyatsingh9434]

Great video. Revised all the concepts

[@gamersir8423]

Damm man, one of the best videos to practice for the interview. Just absolutely loved the content ❤

[@ashishps_1]

Love to hear this, thank you so much 😊

[@kanha12297]

Straight to the point, great video. Thanks

[@sagestudy]

This was great. Thankyou Sir. Please make detailed video on each pattern and also include more Easy, Medium, Hard Practice Problems for each pattern if possible. That will be a great. And Thankyou again for sharing your valuable experience with us.

[@madhuiitb-cse]

I have watched many videos on DSA patterns but this is the best video i have watched till now. I really appreciate your efforts to make this video and sharing your knowledge will help a lot of people who are genuinely looking for DSA. Stay happy and be healthy 🎉. Thanks a ton BRO 😊

[@ashishps_1]

Thank you so much for your kind words. Really happy to hear this 😊

[@hinata2578]

I've been coming back every day and learning 1 a day. I honestly already feel so much less stressed about coding assessments. Thank you so much!

[@pavananms1443]

Extremely well paced video...great content👍👏

[@yousefsameh4622]

Most valuable video I have seen! Thank you so much for your effort

[@praveenkumarreddy902]

This video has a lot of knowledge. Please make separate videos on each topic. Thanks in advance 🎉

[@codersd7841]

No bullshit , clean and clear presentation ! Thanks Brother

[@AkshayMohan-qj6tf]

This was exactly what iam looking for❤ will be very helpful if u can make an elaborated video on each pattern.

[@ashishps_1]

Glad you liked it. I will make detailed video on each pattern

[@TimofeyFedorov-h8y]

it's crazy to think about the fact you solved 1583 problems. nice work!

[@akshirajnishdashottar5844]

pls make more detailed videos like this pls you explain everything in a clear way

[@InterviewDose]

Infact this is a secret that even I found it after spending years of clutter in KZbin after coming to US .. I wish I would have good video editing skills well presented Asish, thanks for sharing

[@meetpatel.47]

I was struggling for reverse LinkedList problem😅 You explained very well. Thanks brother keep it up 👍

[@vishalpatil6914]

Ley me start by appreciating -You are doing a great job here. 🎉 👏👏Yes, please make detailed videos for each.

[@missmytime]

This video deserves the Tech Gamechanging Video of the Year award

[@TarunSingh24]

You've hanged all DSA bhaiya/bhabhi channels. Hats off to you brother 😂❤

[@faiqababar7600]

A lot of information summed up effectively. Thank you!

[@suryakirannvs]

Crisp and clear. Thanks Ashish.! And yes, I would love learn more patterns 👍

[@akil_sadik]

The best video that every coder should watch.

[@sahilShaikh-ry6uo]

I found what I want on KZbin thanks for sharing this video with us 💯

[@Shekhar_Gg]

Hey bro youtube just recommended your your channel to me and i am really glad🎉 Can you please make videos making open source contributions live it will really help the viewers for their career and skills.

[@Sridevikrish21]

🔥🔥Short and crisp Explanation

[@NateFreestyle]

0:47, the line in the for loop should be: subarray_sum += array[k] Anyway, this is a very helpful video. Thanks!

[@excitingmonkey3970]

A good refresher before interviews, but missed adding few more specific graph algos/techniques like (DSU,Topological Sort,Floyd,etc) . Even thought not widely asked , A special mention of distinctive algos like KMP, Manachers algo,Rabin Karp,Knapsack would be a nice addition to make it wholesome. Prolly a part 2 would do that!

[@varunmanchanda3972]

Actually he is right, when I started giving Leetcode Competition I also started observing patterns in questions.

[@MurugeshG-f3l]

Great content, Helpful, Thanks for your time, Keep Shining

[@AkankshaThokade]

I should've come across this video earlier - would've made my preparation easier. But it's cool. Der aaye, durust aaye. Thanks for the wonderful content!

[@M.DhatriReddy]

This was really helpful. Best video explaining all patterns clearly

[@thisisjoyjacob]

Thanks much, this was much helpful. More power to you.

[@SamarAshrafii]

I wish I saw your video earlier. This is woderful. Thanks for sharing!

[@nishant7ng]

ekdum kadak, short & crisp

[@suyashjain3378]

Great content sir, please teach the whole concept 🙏

[@letitrain2884]

Great work as usual but this one is another level.Thank you!

[@kotravaijm250]

only video i watch in slower playback speed!!! Awesome bro!

[@akilanarasu7621]

Correction to be made in the subarray sum (single query) code: def find_subarray_sum(array, i, j): subarray_sum = 0 for k in range(i, j + 1): subarray_sum += array[k] return subarray_sum Accumulate array[k] in subarray_sum, not array[i] which will give a different result. Just leaving this comment if there's any confusion.

[@sherlock8896]

Daamm so precise and crisp thanks a lot man

[@YoutubeFrogOfHell]

Very precise and informative video! Thanks Ashish!🎉

[@ashishps_1]

Glad you liked it

[@rajkumararora7366]

Thank you. Very well summarized ! Keep it up!!!

[@aakankshajella3013]

Please make more vedios on each pattern.......very useful and thank you for posting such vedios

[@vishabsingh07]

Ashish Pratap Singh in short way all the things u have covered … such a imagining way ❤❤

[@RajeebNath-r6b]

Thanks a lot for making this nice recap of most commonly used patterns. Also requesting you make another video for 20 Dynamic Programming Patterns like this.

[@helloworldcsofficial]

Yes, more vids for each topic in Python. Thanks!

[@rafaelleitaooliveira8039]

great content.. pls make a series for each technique with any language... tks for sharing!

[@dineshkumarrg4894]

Watch this before going to DSA rounds for warmup ! Thanks buddy

[@iamsandeeep]

Great express brief on various DSA patterns. Hoping you will do videos on each pattern mentioned here. Thanks for the valuable sharing.

[@Anurag_Badwahe]

Great video we want more this type of video

[@hinata2578]

I actually learned a ton, thank you!

[@nallaadarsh7485]

6:22 Yes Sir, we want detailed video on each of the following patterns.

[@srushtimotghare2169]

Really too good. Please make dedicated videos on each patterns.

[@dizzydeveloper]

Bro speaking in 2x speed, I literally watched this video in 0.75x

[@lokeshkonidela5976]

😂

[@stillthinking6357]

two three you tubers i am following you are one of them.

[@softwareengineer8923]

Such a golden content, thank you so much👍👍

[@archfiend9]

Really helpful video!! Please make a video covering other main patterns apart from these that are asked frequently