Tree traversal algorithms (BFS and DFS - Preorder, Inorder, Postorder)

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  • Опубликовано: 4 ноя 2024

Комментарии • 148

  • @CodeBeauty
    @CodeBeauty  2 года назад +25

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    Code from this video:
    #include
    using namespace std;
    struct Node {
    int data;
    Node* left;
    Node* right;
    };
    Node* createNode(int data) {
    Node* newNode = new Node();
    newNode->data = data;
    newNode->left = newNode->right = nullptr;
    return newNode;
    }
    void printTree(Node* root) {
    if (root == nullptr) return;
    //preorder algorithm (D,L,R)
    cout data left);
    printTree(root->right);
    }
    int main()
    {
    //Level 1
    Node* root = createNode(1);
    //Level 2
    root->left = createNode(2);
    root->right = createNode(3);
    //Level 3
    root->left->left = createNode(4);
    root->left->right = createNode(5);
    root->right->left = createNode(6);
    root->right->right = createNode(7);
    //Level 4
    root->left->right->left = createNode(9);
    root->right->right->left = createNode(15);
    printTree(root);
    cin.get();
    }

    • @jenyak8083
      @jenyak8083 2 года назад

      You very beautiful im afraid that if i will watch to much your videos i will fall in love😂😂

    • @interestingmusic9578
      @interestingmusic9578 Год назад

      .

  • @dundyd3612
    @dundyd3612 2 года назад +18

    Amazing video! I can't explain how long I've been looing for a good explanation, glad I finally found it.

    • @I_am_FRANCO
      @I_am_FRANCO 6 месяцев назад

      Thanks mrs. puff for the vid

  • @graymatter1426
    @graymatter1426 2 года назад +18

    Your video lessons are so helpful for my coding journey. The things which are hard to understand in textbook is easy to follow on your tutorial. Thanks for your amazing work ❤️

  • @МаксСивухо
    @МаксСивухо 2 года назад +12

    Hello. It is the best explanation I've ever seen. Thank you for your lessons

    • @CodeBeauty
      @CodeBeauty  2 года назад

      I'm glad to hear that and happy to help 😃😃

  • @md.abubakkarsiddiq1156
    @md.abubakkarsiddiq1156 2 года назад +20

    4,9,5,2,6,15,7,3,1 is the post order traversal. Is this the correct answer, please let me know.

  • @farbolos3164
    @farbolos3164 2 года назад +2

    Hi, this channel is pure gold, is understandable even for an italian like me. Thank you very much.

  • @khusanumarov5834
    @khusanumarov5834 2 года назад +10

    Cool! Very simple explaining. Thank you so much!!!

  • @GMTX-qj8or
    @GMTX-qj8or 2 года назад +4

    Thank you for a great paced and visual explanation of the topic, keep up the great work, the e-books are great.

  • @marym9003
    @marym9003 2 года назад +5

    These books are amazing, thanks for sharing free resources with us Saldina ❤️

  • @peterchisangamwamba9100
    @peterchisangamwamba9100 2 года назад +1

    since you're learning algorithms like the video it helps youtube algorithms
    CLASSIC!!

  • @javiercantoy7522
    @javiercantoy7522 2 года назад +12

    You explain very well 😉

  • @charleswayne5581
    @charleswayne5581 5 месяцев назад

    This is the most excellent explanation on recursion I have ever seen!

    • @CodeBeauty
      @CodeBeauty  5 месяцев назад

      I'm glad that you like it 🤗 🥰

  • @adammed8667
    @adammed8667 2 года назад +5

    Very refreshing video... keep the good work up.

  • @jliu7221
    @jliu7221 Год назад

    Better explained than those tedious and never-ending college CS courses. I enjoy your instructions. Simply Amazing!

  • @azixkhan6632
    @azixkhan6632 2 года назад +2

    //Postorder algorithm (L,R,D)
    printTree(root->left);
    printTree(root->right);
    cout data

  • @Daniel-um9ye
    @Daniel-um9ye 2 года назад

    You managed to make this look super easy. The best traversing trees tutorial I have seen ( and I have seen a lot of them ).

  • @montyGator
    @montyGator 2 года назад

    Omg! I have never understood how a recursive function works until I watched this video! Your explanations are top notch!

  • @dangerbirb4981
    @dangerbirb4981 2 года назад

    This is the clearest explanation of DFS algorithms that I've seen. Thank you for making it easy (where my book and lecturer did not)!

  • @deli5777
    @deli5777 Год назад

    Maybe the most helpful video on recursion that I've seen

  • @johnniewalkerjohnniewalker2459
    @johnniewalkerjohnniewalker2459 2 года назад +4

    very comprehensive video Saldina.Your english also are awesome.Can you make if you find free time more video about windows forms applications?

  • @munib2023
    @munib2023 5 месяцев назад +1

    Upload all your STL videos in a single video as you did in C++.
    This will helped us alot.

  • @029_shauryaagarwal8
    @029_shauryaagarwal8 2 года назад +9

    My placement session is coming, can you make more such videos on Data structures and algorithms, your explanations are very good🔥❤️

  • @Pirzade
    @Pirzade 4 месяца назад

    One word is enough : Incredible.

  • @HiMiss940
    @HiMiss940 8 месяцев назад +1

    Your English is really good , i mean really easy to understand, good Word Choice ❤❤😊

  • @AryanSingh-6699
    @AryanSingh-6699 2 года назад +14

    ❤ Love from India 🧡🤍💚

    • @CodeBeauty
      @CodeBeauty  2 года назад +2

      Love for India 🧡🤍💚

  • @Tech_Diaries_With_Vincent
    @Tech_Diaries_With_Vincent 4 месяца назад +1

    Thank you for this video, you made this topic and concept more understandable 😍

    • @CodeBeauty
      @CodeBeauty  4 месяца назад +1

      You're welcome 😊 🥰

  • @МаксимУдовиченко-и1м

    Hello, Saldina! I am a Russian developer. Your videos are amazing! You explain the topic very clearly, giving examples from life! Looking forward to your new videos!

    • @I_am_FRANCO
      @I_am_FRANCO 6 месяцев назад

      Я люблю Россию

  • @潘建廷-g3o
    @潘建廷-g3o 2 года назад +1

    Excellent video!!
    Could you update more algorithm-related Videos in the future?
    Your explanation is simple and good to understand.

  • @SatishSingh-cp3wo
    @SatishSingh-cp3wo Год назад

    The way you explain, even a 5th grader will understand. 🤜🤛

  • @thinkandcreate5633
    @thinkandcreate5633 2 года назад +1

    This is the best explanation. Thank you soooooo much!!!

  • @itsme17717
    @itsme17717 11 месяцев назад +1

    you are awesome, I really understand trees right now

  • @uanbu6539
    @uanbu6539 Год назад +1

    Thank you for this video. You are a really good teacher. Please make a video about BFS as well 🙏

  • @hulkio22
    @hulkio22 8 месяцев назад +1

    AWESOME explanation!!!. Thanks a lot!!!

  • @howabadworld
    @howabadworld 2 года назад +10

    nice video!

  • @muneeburrehman4690
    @muneeburrehman4690 2 года назад +1

    A good revision session (been ages!)
    Thank you Ma'am!

  • @kf4547
    @kf4547 Год назад

    Such a great explanation of the themes! Thank u very much, we appreciate your work

  • @phantomghoul2846
    @phantomghoul2846 2 года назад

    back at it with the bangers I really thank you for this!

  • @anjanaimesh3258
    @anjanaimesh3258 6 месяцев назад

    Great explanation. God bless you 🙏

  • @Pirzade
    @Pirzade 4 месяца назад

    I want to add something. There are 6 possibilities for Depth First Search Algorithm according to the starting point in data structure. D refers to the Data, L refers to the Left, R refers to the Right pointer. The possibilities are; A-PreOrder (1-DLR, 2-DRL), B-InOrder (3-LDR, 4-RDL), C-PostOrder (5-LRD, 6-RLD)

  • @HaHaiCuongK18HCM
    @HaHaiCuongK18HCM Месяц назад

    it is truely code beauty for many reason

    • @CodeBeauty
      @CodeBeauty  Месяц назад

      thank you, did you check my C# Practical Programming Course at www.codebeautyacademy.com
      ??

  • @sononsoft5253
    @sononsoft5253 Год назад +2

    The hardest thing about coding is not seeing what it does in the background. Your explanation is amazing and this is what people hope to see, especially me. Thank you so much!

  • @vincent_muriithi
    @vincent_muriithi 4 месяца назад

    amazing, kindly create a BFS traversal algorithm video 😍

  • @mariacunha8508
    @mariacunha8508 Год назад +1

    This video was SO helpful! I was struggling with this topic but it was so easy and simple to understand with you! Really appreciate you!

  • @IndieGamer95
    @IndieGamer95 2 года назад +8

    I wanna learn

  • @putin_navsegda6487
    @putin_navsegda6487 Год назад

    Wow great explanation ! Finally i understand it😁

  • @wrkrebel
    @wrkrebel 2 года назад

    very easy to understand. thanks for making such useful videos

  • @danonuevo
    @danonuevo Год назад

    Hello, thank you so much, and it's a very concise explanation for the DFS. May we request how about doing BFS with the same Tree example. More tutorial videos to come.

  • @adanzavala4801
    @adanzavala4801 2 года назад

    From a brown-skinned Mexican, i say thanks, these videos of yours are absolutely BRILLIANT! They are helping me in my engineering classes, so again, thanks.

  • @Zita098765
    @Zita098765 2 года назад

    Thank you so much! Please please make a video of BFS!

  • @noahgoss5552
    @noahgoss5552 2 года назад +2

    Hi Saldina! Amazing video :D I was wondering if in the future if you give a tutorial on vectors in C++? Most of the tutorials I looked up are a bit confusing and I feel like you can give some o fun clarity on this topic like you do with your other videos.

  • @TheDima23
    @TheDima23 Год назад +1

    Amazing video, thank you so much for this !

  • @alaeddinebenider205
    @alaeddinebenider205 Год назад +1

    your video are so helpful

  • @prakharposwal9
    @prakharposwal9 2 года назад +4

    Plz make video for B-tree 🙏🙏

  • @Data_Science_In_Kannada
    @Data_Science_In_Kannada 8 месяцев назад

    great video, everything was understood so easily! can I get link for BFS?

  • @filipetaveiros6967
    @filipetaveiros6967 2 года назад +1

    Excellent explanation!

  • @tofiq62
    @tofiq62 Год назад

    Very good explanation! 👏

  • @nika_nothingmore
    @nika_nothingmore Год назад

    your videos are amazing!

  • @quyettranvan6506
    @quyettranvan6506 2 года назад

    Many thanks for your explanations. Hope you to make a video about hash table soon.

  • @willofirony
    @willofirony 2 года назад +1

    Explaining recursive functions is challenging and often confusing to the neophyte. Nevertheless, you tackled the challenge faultlessly. One wonders if, when searching, the algorithms would be more efficient if one compared the 'target' with the data and choosing the appropriate algorithm on the result. Are there generic algorithms for balancing the tree, should one side of a node gets much 'heavier' than the other?

  • @mr.potato8894
    @mr.potato8894 2 года назад +8

    Is it possible to get a virtual autograph? 😂😂

    • @dundyd3612
      @dundyd3612 2 года назад +4

      Hahahha, I was wondering the same :D

    • @CodeBeauty
      @CodeBeauty  2 года назад +5

      Hahaha, something like my digital signature 😁
      Maybe I'll make a few NFTs in the future and share them with my most active viewers 🤔😃

    • @Mzkysti
      @Mzkysti 2 года назад

      @@CodeBeauty this video is definitely worth of a coffee at least, I'll check how that works...

  • @kwizeraenock1639
    @kwizeraenock1639 Год назад

    Thank you saldina for your help ❤

  • @handover007
    @handover007 5 месяцев назад +1

    You teaches so nicely , your lectures sounds like music.

    • @CodeBeauty
      @CodeBeauty  5 месяцев назад +1

      I'm happy to hear that 🥰

  • @qaiserakram241
    @qaiserakram241 2 года назад

    I saw u an year ago
    U have changed alot😳

  • @Shinji91
    @Shinji91 2 года назад

    This helps so much. Thank you!

  • @ismailyousfi3521
    @ismailyousfi3521 2 года назад +1

    Thenk you I learn a lot from you.

  • @YaXiao-wv4rm
    @YaXiao-wv4rm 7 месяцев назад

    What you said is great!

  • @ookhands3843
    @ookhands3843 2 года назад

    Hi, thanks for your explanation. I have questions about types of Trees and how they are used. Black-Red Tree for example. Or in which case we use DFS ? Thanks.

  • @madhusankawijerathne8435
    @madhusankawijerathne8435 Год назад

    Really helpful. Thank you!

  • @SaiGanesh314
    @SaiGanesh314 Год назад

    Waiting for a video on BFS algorithm.... :))

  • @sarwat3552
    @sarwat3552 2 года назад

    Please upload more videos on tree, if you have any paid courses please embed the link in the description

  • @alexanderlord1512
    @alexanderlord1512 2 года назад

    Thank you saldina
    I hope you make vedio's about problem solving

  • @bishoyzakhary3531
    @bishoyzakhary3531 2 года назад

    amazing video I finally understand DFS ❤ ;
    can I ask you to make a video explaining BFS and red and black tree
    thank you

  • @Happys_Art
    @Happys_Art Год назад

    Hello. Is it okay to use this code for my homework assignment for my class. To be honest I’ve ready used it for my assignment so technically I’m just informing you that I already used this code and wanted to ask if it was okay

  • @omerhusen906
    @omerhusen906 Год назад +1

    can you make more such videos on Data structures and algorithms?
    your explanations are very nice,and you are so beautyfull hhhh.
    thanks for you.

  • @alexanderlord1512
    @alexanderlord1512 2 года назад

    Thank you for this vedio but i wish you make vedios about solve problems using dfs I couldn't solve any problem until now using it

  • @Marzex1x
    @Marzex1x 7 месяцев назад

    Thank you!

  • @shinoke9395
    @shinoke9395 2 года назад

    can you setup tour also i kinda waana know and thanks for the hard work....

  • @mihnea-um5gy
    @mihnea-um5gy Год назад

    Will you do a video for BST?

  • @madhusankawijerathne8435
    @madhusankawijerathne8435 Год назад

    Thank you again

  • @startengine8838
    @startengine8838 2 года назад

    keep up the good work super useful

  • @Programming_Buddy1
    @Programming_Buddy1 2 года назад

    Love your videos!

  • @uwebosse262
    @uwebosse262 2 года назад

    perfect Explanation!

  • @norioimada2172
    @norioimada2172 2 года назад +1

    Could you show me the BFS algorithm as well?

  • @MuhammadBilal-j9x
    @MuhammadBilal-j9x Год назад +1

    Hi i am trying to find how to deletion form Tree

  • @danielmartnutriologous
    @danielmartnutriologous 2 года назад +1

    I love you videos thank you for share you knowledge question do you have Patrion ?

    • @CodeBeauty
      @CodeBeauty  2 года назад

      I don't have Patreon, maybe in the future, currently I only have BuyMeACoffee 😊😃☕

  • @hbm293
    @hbm293 2 года назад

    Hope everything is fine for you, following the earthquake in Stolac today!

    • @CodeBeauty
      @CodeBeauty  2 года назад +1

      It was scary. Everything is fine with my family and all the people I know, but I read that there were some casualties.
      I hope that everything is okay with you, and I also hope that there will be no more earthquakes, because from what I read, a couple of them usually hits one after the other. That would be terrible 😰

  • @hosamessa9069
    @hosamessa9069 2 года назад +1

    you're a life saver 😘😘

  • @انامسلموكفى
    @انامسلموكفى Год назад

    I ve a struct of student with some properties : code is the identifier of the student, it will be the node in the binary search tree , first i would like to create a linked list of int from this struct ?? And then convert this linked list to a bst in a dynamic way? Please help

  • @Avolua
    @Avolua 2 года назад

    Gosh! Just in time!!!!

  • @MaySmithereen
    @MaySmithereen 2 года назад

    Please also do the breadth first search :)

  • @spurti
    @spurti Год назад +1

    BFS please!

  • @jamalparker4487
    @jamalparker4487 Год назад

    How does the algorithm know to go back up a node after reaching a node with no left or right linked node?

  • @veslyju1984
    @veslyju1984 Год назад

    At the part printTree(Node* root){}
    printTree(root); why there is no pointer to pointer like insert in linkedlist? Like printTree(Node** root){}
    printTree(&root); I mean like this ,isn't root point to other ?

  • @ishaankhatter6384
    @ishaankhatter6384 2 года назад

    Hey, Can you please post more videos of data structures?

  • @097_suryakantdhote9
    @097_suryakantdhote9 2 года назад

    Will you be doing a video on hash maps?

  • @ilham-t9y
    @ilham-t9y Год назад

    11:56 how do the program know that the root is passed to the next node?

  • @danialsaud3189
    @danialsaud3189 2 года назад

    Iwanted to ask Where to learn about functions in headers file for c++ ?

  • @abraarz2971
    @abraarz2971 2 года назад

    Thank you!

  • @ASHWANIKUMAR-fc5pu
    @ASHWANIKUMAR-fc5pu 2 года назад +1

    kindly add more videos

  • @mehdi-vl5nn
    @mehdi-vl5nn 2 года назад

    is any difference between traversal and lookup ?