HeapSort | Heapify method to build a MaxHeap in O(n) | DSA-One Course #32

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  • Опубліковано 20 жов 2024
  • Hey guys, In this video, We're going to learn about HeapSort. HeapSort is a sorting technique that uses Heap to sort Arrays. We'll also see how the heapify method works. And how to use this method to build a Heap.
    More info on the Time complexity of building a heap: www.geeksforge...
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КОМЕНТАРІ • 219

  • @chirag7694
    @chirag7694 3 роки тому +26

    I wasn't able to understand this topic from anywhere except this video, Thanks a lot Anuj Bhaiya 😊

  • @i_mchick5311
    @i_mchick5311 3 роки тому +84

    best explanation on utube. U r the true king of DSA . Your style of teaching is the best ,far better than animated contents. TRUE KING ANUJ BHAIYA.

    • @harshitpanjwani2460
      @harshitpanjwani2460 2 роки тому +4

      dsa ke questions karaye bina dsa course bana dala..kya dsa ke liye bas concept zaroori hai ya concept building bhi ?

    • @AryanSingh-zv5ch
      @AryanSingh-zv5ch 2 роки тому +4

      Khud bhi kuch krlo ki sab yahi krae

    • @cosmosXverse
      @cosmosXverse Рік тому +2

      At 19:55 u said heapify run O( logN )...but last vd u said it's O(n).please someone clear me

    • @sarthaksharma9656
      @sarthaksharma9656 10 місяців тому

      @@harshitpanjwani2460 spoon feeding is not good bud

    • @moviesasylum8531
      @moviesasylum8531 6 місяців тому

      @@cosmosXverse i thinks its like heapify does take O(n), but extracting/deleting an element it takes O(logn), and we are doing it for n times so, O(nlogn).
      Now, O(n) + (nlogn) = O(nlogn) (approx)

  • @arijitbarua9908
    @arijitbarua9908 2 роки тому +13

    We anybody completes this entire course with full focus and is able to solve other questions using these concepts then he/she can easily crack any company's top package job. Anuj Bhaiya is doing this job for free. Idk how to thank You. If I get placed in a good company with a good package the entire credit goes to you not my college faculty. Lots of Love ❤❤❤

  • @devanshgupta5555
    @devanshgupta5555 3 роки тому +4

    sir bhut din se heap me problem a rhi thi apki video ne sab clear kar diya thank you so much sir #DSAONE

  • @sankalparora9374
    @sankalparora9374 Рік тому +3

    Nice and clean refresher. No Bs. Thanks

  • @Kumarvivek-uv5hf
    @Kumarvivek-uv5hf 3 роки тому +11

    Yes . Very much clear now. Great explanation !! keep the good work going .

  • @clawuxe
    @clawuxe 6 днів тому

    I had DS Subject in my 2-1, but i literally memorized this code because i couldn't understand it! BUT THIS TIME U MADE IT SO EASY!!! THANK YOU SO MUCH ANUJ BHAIYA!!!

  • @deepakjonnalagadda2141
    @deepakjonnalagadda2141 2 роки тому +2

    best explanation for this concept. I had lot of struggle trying to understand from other videos.

  • @rajeshagarwal4137
    @rajeshagarwal4137 3 роки тому +6

    thanks a lot.far better than any animated content

  • @ganeshvhatkar7166
    @ganeshvhatkar7166 10 місяців тому

    Most understandable video on UA-cam for Heapsort, Heapify, Build Heap with pseudo code

  • @Fenil3357
    @Fenil3357 3 роки тому +5

    Best explanation of heapsort❤️🔥

  • @nabamitabose9310
    @nabamitabose9310 3 роки тому +5

    Yes it was helpful . Thank you so much 🥺❤

  • @MUHAMMADALISHAFIQUE-w2d
    @MUHAMMADALISHAFIQUE-w2d 4 місяці тому +1

    anuj bhai you are a great lecturer seriously amazing teaching style ♥

  • @pranjalck
    @pranjalck Рік тому

    You really are life and time savior 🥺❤️❤️

  • @dhirajjadhao6392
    @dhirajjadhao6392 3 роки тому +2

    are iska hi to wait kr raha tha mai

  • @pruthveshshetkar1263
    @pruthveshshetkar1263 2 роки тому +3

    Thank you Anuj bhaiya , very helpful and up to the mark content 🔥

  • @user-jt9er4gb3m
    @user-jt9er4gb3m 2 роки тому +6

    yes, it's very very helpful. and i think this is the best explanation on UA-cam

  • @AshishKumar-pq6pr
    @AshishKumar-pq6pr 3 роки тому +12

    Awesome lecture....more different types of questions please..... frequency increase please...... love your lectures

  • @jaypatel9392
    @jaypatel9392 3 роки тому +2

    Thank u so much Anuj Bhai. Today is my exam n I am not getting heap concept properly but now everything is clear ❤️❤️❤️❤️❤️❤️

  • @kumarayush998
    @kumarayush998 Місяць тому

    This video cleared my doubts on this topic.

  • @RISHABHJAIN-ud6bv
    @RISHABHJAIN-ud6bv 3 роки тому

    understood concept in one shot!Thanks bhaiya...............

  • @startupmindset7597
    @startupmindset7597 2 роки тому

    bhaiya you are my techer and patner to become a successful developer........you are a hope for non - IIT ns ......thank you so much bhaiya ,,,

  • @roopeshverma9719
    @roopeshverma9719 3 місяці тому

    Yes, it was helpful, made so easy to understand!!

  • @ap360
    @ap360 2 роки тому +1

    Best explanation on UA-cam

  • @piyushagarwal8458
    @piyushagarwal8458 2 роки тому +1

    Guru Ji, Pranam !!

  • @vimalkumardubey6834
    @vimalkumardubey6834 2 роки тому +1

    Thanks bhaiya for these lectures 🤍🌝🌝

  • @kingshorts12590
    @kingshorts12590 3 місяці тому

    Thank you sir appreciate your hard work

  • @ChandanKSwain
    @ChandanKSwain Рік тому

    Seriously ,i am very thankful to you,for this level of explaining. Still making some confusion bcz of array's indexing from 0.

  • @rishabsharma5307
    @rishabsharma5307 3 роки тому +8

    Make more videos on questions patterns

  • @warriorgaming9509
    @warriorgaming9509 2 роки тому

    Heavy Explanation !!!!!!!!!!!!!!! JODDDD❤❤😍😍😍😍👌👌👌👌

  • @gauravjindal007
    @gauravjindal007 2 роки тому +2

    great explanation

  • @roy_kousik
    @roy_kousik 3 роки тому +1

    I was waiting for this video thanks bhaiya

  • @akr1831
    @akr1831 3 роки тому +1

    Thankyou bhaiya for this amazing video

  • @thefizzshow
    @thefizzshow 2 роки тому

    Yes, It was helpful. Thank You!

  • @prashantshukla6870
    @prashantshukla6870 3 роки тому

    Bhaiaya apke dsa ka lecutre etne ache hai Ki i wish yeh apke lecutre prr infinite loop lag Jaye aur aate rhe aate rhe

  • @kommurusreenath5400
    @kommurusreenath5400 Рік тому

    Yes It was very helpful......awesome lecture.Thanks for creating this content

  • @satakshipal5008
    @satakshipal5008 3 роки тому +1

    yes it was helpful bhaiya

  • @shubhamdudhe5737
    @shubhamdudhe5737 3 роки тому

    Sir ur explaination and look is jahar 💎

  • @rameshbola2712
    @rameshbola2712 2 роки тому

    Bhaiya yaar why are you are so underrated .

  • @niladridutta5737
    @niladridutta5737 2 роки тому +1

    very useful vedio for students

  • @AyushSingh-xo4ed
    @AyushSingh-xo4ed Рік тому +1

    yes very very helpful sirrrrrrr

  • @sahanabalghare8833
    @sahanabalghare8833 4 місяці тому

    very good and on point explaination

  • @jyotipandey3156
    @jyotipandey3156 3 роки тому +1

    Loads of ❤️....it was really vryyy beneficial..please keeep going 👍👍

  • @parikshitkumar9511
    @parikshitkumar9511 2 роки тому

    Best explaination of heap sort

  • @gitanjalikumari9262
    @gitanjalikumari9262 2 роки тому

    great video..so nice explanation...thanks bhaiya

  • @mritunjay7065
    @mritunjay7065 2 роки тому

    Best explanation on heapSort !

  • @bharatmehta30
    @bharatmehta30 3 роки тому

    Best video on heap sort

  • @harshitsharma5647
    @harshitsharma5647 2 роки тому

    Very Helpful Bhaiya 😊😊😊😊

  • @GunjanChoukade
    @GunjanChoukade 6 місяців тому

    Thanks a lot bhaiya☺

  • @sarthakchauhan8386
    @sarthakchauhan8386 2 роки тому

    Thank you for this wonderful explanation.

  • @New_Movie_Watch
    @New_Movie_Watch Рік тому

    superb video bhaiya

  • @MuhammadZeeshan-fn3vk
    @MuhammadZeeshan-fn3vk 8 місяців тому

    It was really helpful ❤

  • @PahadiRabbit
    @PahadiRabbit 2 роки тому

    Yes Helped a lot, Thanks. very nicely explained.

  • @lokendrasingh9780
    @lokendrasingh9780 2 роки тому

    A big thank you bhaiya ❤️🙏

  • @Pranauv
    @Pranauv 2 роки тому

    yes it was a lot helpful bhaiya!! thank you !

  • @tushar2jain
    @tushar2jain Рік тому

    Best explanation

  • @sonudhariwal6207
    @sonudhariwal6207 3 роки тому +2

    YES, IT WAS HELPFUL

  • @animeshpandey2911
    @animeshpandey2911 Рік тому

    best se bhi best

  • @ankushmane1333
    @ankushmane1333 3 роки тому +2

    Wow badhiya

  • @ashfaqhussain761
    @ashfaqhussain761 2 роки тому

    Excellent Explanation bhaiya

  • @shreyabagati8020
    @shreyabagati8020 2 роки тому

    Thank you sir. Very clearly explained.

  • @piyushsarraf9994
    @piyushsarraf9994 3 роки тому

    Yes Definetly it was very helpful bh

  • @MridulGuptaBEE
    @MridulGuptaBEE 2 роки тому

    Yes, it was helpful.

  • @amalkrishnas1696
    @amalkrishnas1696 Рік тому

    Very helpful video

  • @saketgautam4417
    @saketgautam4417 3 роки тому +3

    Bhaiya please make video on how to ask for referrals.. I mean format or something. How to build connections..

  • @aashutoshgandhi371
    @aashutoshgandhi371 11 місяців тому

    thanks , i needed that.

  • @baluchavan3047
    @baluchavan3047 2 роки тому

    Saho padaya bhai😙🔥

  • @pragatipandey3478
    @pragatipandey3478 3 роки тому

    Loved it very much... Thank you sir

  • @pardeepkumar7147
    @pardeepkumar7147 3 роки тому

    nice explanation bhaiya ....thnks a lot

  • @jackwalker2947
    @jackwalker2947 3 роки тому +1

    Best explanation 😅

  • @sahllsaharn4664
    @sahllsaharn4664 2 роки тому

    ir i implemented heapify using iteration while loop and started form last element and i checked the parent then i checked the child to fulfil the heap property ... thanks sir

  • @cloudverse260
    @cloudverse260 3 роки тому +1

    Very helpful lecture

  • @furqanahmad5446
    @furqanahmad5446 2 роки тому

    very helpfull.. thanks

  • @codewithaakash6826
    @codewithaakash6826 3 місяці тому

    yes , it was helpful

  • @Manojkumar15629
    @Manojkumar15629 3 роки тому +1

    Love you from Aligarh ❣️

  • @govindsharma7696
    @govindsharma7696 3 роки тому +2

    Bhaiya aapne is baar thoda sa confuse krdiya .., but still I got this 👍
    Thank you

  • @kushaldaga2539
    @kushaldaga2539 2 роки тому

    Yes this video was helpful

  • @joseph2073
    @joseph2073 2 роки тому

    Thanks

  • @pratikvishwakarma1599
    @pratikvishwakarma1599 2 роки тому

    Superb explanation, no doubt this was very helpful.. Thanks for creating such content !!

  • @itsme-vo1tc
    @itsme-vo1tc 2 роки тому

    this is super helpfull video

  • @gtbaba123
    @gtbaba123 Рік тому

    Best video bro

  • @a-23-roushansingh14
    @a-23-roushansingh14 2 роки тому

    Bhya... explained quite well...but 1 doubt ki delete operation log n kaise le raha hai...? Wo to throughout the array traverse kar raha hai?

  • @bhalodiyarajeshbhai2656
    @bhalodiyarajeshbhai2656 2 роки тому

    yes sir..nice

  • @popeyetech9634
    @popeyetech9634 3 роки тому +1

    Bhaiya hm log in concept ko asani se seekh jate hi but bhaiya in concepts ko hmesha kaise yaad rakhe please make a video on this topic also how to memorize your concepts for forever 🙏
    Tell us the best way to do this.

    • @divyanshverma4148
      @divyanshverma4148 2 роки тому +1

      Practise bro...
      Questions related to it. Not 100 q. Just 4 to 5 different type Questions.
      Its just like maths, the more question you solve the more you understand

  • @adimishra3046
    @adimishra3046 3 роки тому

    Thanks Bhaiya ❤️

  • @zubairmujeeb8455
    @zubairmujeeb8455 3 роки тому +10

    Sir, Left and right should be calculated with the help of 2*i+1 for left and for right 2*i+2. correct me if i am wrong?

    • @AyushGupta-zn8jl
      @AyushGupta-zn8jl 3 роки тому +5

      Yes, in zero based indexing.

    • @BusinessIdeas-
      @BusinessIdeas- 3 роки тому +3

      and in that case int i of for loop will start from i=(n/2)-1 till i>=0

    • @code_with_me2070
      @code_with_me2070 2 роки тому +2

      @@AbhishekKumar-zl1ho yeah both are same , heapify is just a algorithm to create heap in less time because insertion take O(nlongn) time and heapify take O(n) time

  • @shyammehta4743
    @shyammehta4743 2 роки тому

    thankyou sir

  • @kishanpareek2848
    @kishanpareek2848 3 роки тому

    It was Helpful

  • @vrindasinghal2426
    @vrindasinghal2426 2 роки тому

    Very helpful

  • @gandhijainamgunvantkumar6783
    @gandhijainamgunvantkumar6783 2 роки тому

    Amazing explanation :)

  • @divyanshbarar3840
    @divyanshbarar3840 2 роки тому

    best this the best video

  • @cat-codes1on1
    @cat-codes1on1 Рік тому

    "Yes , it was helpful"

  • @azgharkhan4498
    @azgharkhan4498 10 місяців тому

    I wish if you could explain how is it O (n). thats more important i feel

  • @aditianand6966
    @aditianand6966 2 роки тому

    YES IT WAS HELPFUL

  • @atrade4525
    @atrade4525 2 роки тому

    Super 🙏

  • @sangramsingha11
    @sangramsingha11 Рік тому

    A nearly complete binary tree with level order traversal of 10 20 30 15 10 in this case the leaf node are 30 15 and 10. For floor(N/2) + 1 will give leaf node start at value 15. please correct me if i am missing something over here.

  • @vinamrakhoria1330
    @vinamrakhoria1330 2 роки тому

    it was helpful!

  • @vishalmishra1937
    @vishalmishra1937 2 роки тому

    @anuj bhaiya why in for loop it is from n/2

  • @bulukivine8238
    @bulukivine8238 3 роки тому

    yes it was helpful

  • @angadkochhar9885
    @angadkochhar9885 2 роки тому

    the for loop can be started from 1 till n/2 right?there wont be any problem or change?