Insertion Sort Algorithm Made Simple [Sorting Algorithms]

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  • Опубліковано 13 жов 2024

КОМЕНТАРІ • 172

  • @lucianboboc7513
    @lucianboboc7513 4 роки тому +64

    I have completed all 3 parts, the course is great, i highly recommend it.
    A dynamic programming and system design would be a great addition to the existing 3 parts.

    • @oracle_professor
      @oracle_professor Рік тому

      It seems to me, he made the simple insertion sort difficult to understand.

  • @_stack
    @_stack 4 роки тому +26

    You're an inspiration Mosh! so much so that we decided to create a coding channel ourselves. Of course, we are nowhere near your way of teaching, but we see you as an inspiration and a guide for succeeding!

  • @IoniB
    @IoniB Рік тому +4

    This made little sense until I realised I was thinking about it wrong. It wasn't until I sat down on my ipad and tried to draw each step that I realised that firstly you are setting the current to the 2nd item in the list and J to just A NUMBER that is 1 less than the index. Then I realised that j-- was setting j to -1 and not 0. And once you do j + 1 = current this is the same as array[0] = current.
    So I basically understood it like that: first steps:
    array[1] = array[0]
    j = -1;
    arr[0] = current (array[1])
    I don't know if this makes sense to anyone else rn but if you are confused I suggest you just spend some time on it and draw it out at each step. I love Mosh though. He's the only one that actually encourages me to sit down and try something and this makes a huge difference. He breaks the developer's mindset of just watching tutorials forever and not actually practising it. In the last 2 days this is the second sort that he helped me truly understand and implement rather than think that I understand and then when I need to do it I don't actually get it. Awesome work!

  • @zivv1147
    @zivv1147 9 місяців тому +2

    The explanation was very good, the call to action to try it ourselves for 20 minutes is refreshing and wonderful, and when you demonstrated how you actually write the code - it was very informative and clear. Excellent video, thank you!

  • @snehanangunoori7838
    @snehanangunoori7838 Рік тому +3

    Hi Mosh! Just wanted to say that I especially like how you gave us 20 minutes to attempt the implementation instead of us just directly copying your code. I followed your instructions and was able to implement it by myself! It really made my day (the little things in life)...thank you so much!! I truly enjoy learning from your videos...thanks again! :)

  • @__nitinkumar__
    @__nitinkumar__ 2 роки тому +5

    This one is for all all my friends who love for loops.
    The Approach I took is of swap. Basically I think of it as a swap operation only and not as shift operation, as mentioned by Mosh.
    So swap until you find the correct spot for the current element in the sorted portion.
    Because of swapping the index of current gets changed, so keeping track of it, and decrementing it after every swap.
    private static void insertionSort(int[] arr) {
    for (int i = 1; i < arr.length; i++) {
    int curr = arr[i];
    int currIndex = i;
    for (int j = i - 1; j >= 0; j--) {
    if (curr < arr[j])
    swap(arr, j, currIndex--);
    // after swapping the index of curr changes so decrementing
    else
    break;
    // reduce iterations as elements before ith index are sorted
    }
    }
    }
    private static void swap(int[] arr, int j, int i) {
    int temp = arr[j];
    arr[j] = arr[i];
    arr[i] = temp;
    }

    • @DonARTello250
      @DonARTello250 2 роки тому +1

      realize if you swap, you'll reduce the efficiency of the algorithm. In that case it wouldn't infact be an insertion sort because for insertion sort, you have to keep your key in a new variable and shift all the elements at once to create space for inserting. When you shift you simply overwrite on the current elements. Maybe we call your algorithm "Swap sort" but will be much slower especially for large arrays

    • @IoniB
      @IoniB Рік тому

      @@DonARTello250 Yeah was just about to say that

  • @piyushborse3085
    @piyushborse3085 3 роки тому +56

    Now I can say one thing to CS students... ODIN is with us ❤️

  • @mrbbayat
    @mrbbayat Рік тому +7

    Well explained, very similar to this book
    "Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, Clifford Stein - Introduction to Algorithms - The MIT Press (2022)"

  • @MichaelAdadey
    @MichaelAdadey 3 місяці тому +1

    Mosh has gotta be a really rich guy, because man this guy knows so much

  • @ZBadri
    @ZBadri 4 роки тому +8

    I just want to say you:
    Thanks alot
    although its my weekness, l would say l actually like you be my teacher .
    If l lived in your city l have found you to be my private teacher.
    Despite some web s that you recommend are not responsible in my country ,l keep trying to learn .
    At least l could say you are so generous ,so l wish a happy life for you.

  • @user-he4ef9br7z
    @user-he4ef9br7z 4 роки тому +2

    this is explained waaaaaaay better than it was to me in school today

  • @JasmineeeWu
    @JasmineeeWu 4 роки тому +6

    Yesss! 👍👍 Why didn't I have this 2 years ago when I was struggling through data structures and algorithms? 😩

  • @MuhammadIshmaell
    @MuhammadIshmaell 2 роки тому +2

    Great explanation, but can any please explain why we're decrementing the value of j in the while loop?

  • @aneeshkatkam8271
    @aneeshkatkam8271 4 роки тому +1

    mosh thank you thank you thank you for these courses

  • @sarahle770
    @sarahle770 3 роки тому +5

    Beautiful explanation! I’ve been taking 3 parts java course and I loved it .
    Do you think you will be able of doing java + hibernate + spring boot ( based on my sql Database ? ) I’m gonna take that course for sure !
    Thanks in Advance

  • @bishowpandey8205
    @bishowpandey8205 4 роки тому +2

    Hey mosh you are really a very good teacher. I love your videos. I had learned python by watching your videos. Thank you for all your videos. I have a small request, can you make videos on game development with python. It will be very helpful. Thank you!❤️❤️

  • @nikshepbangera5416
    @nikshepbangera5416 Рік тому +1

    This guy is amazing

  • @erollejenfreemagulod3637
    @erollejenfreemagulod3637 3 роки тому

    nice!! thankyou !! my head hurts thinking about my projects in my sub but thanks fot this it really help

  • @sportlifetv3838
    @sportlifetv3838 4 роки тому +1

    Sir we need an django tutorial on delete,insert,update,delete and search operation..our institute have given us a project to build a web application..
    I already shared your 6 hr python tutorial anoung student and that was great..django tutorial will be helpful for everyone who used to develop web application
    Thank you

    • @aqibishaq885
      @aqibishaq885 4 роки тому

      @@programmingwithmosh i need spring boot tutorials why u ignoring my request

  • @diwakardayal954
    @diwakardayal954 2 роки тому

    thank you
    animation is so clean

  • @mounirelardi1201
    @mounirelardi1201 4 роки тому +1

    thanks mosh for your very useful tutorial! I'm super exited to learn more from you!!

    • @mounirelardi1201
      @mounirelardi1201 4 роки тому

      @@programmingwithmosh always at your services mosh!

  • @abhishekshah11
    @abhishekshah11 4 роки тому +6

    I need the intro music. It's so good

  • @robloxprisoners6280
    @robloxprisoners6280 4 роки тому +4

    Mosh please i want your django course cuz your explanation is easy and simple at the same time which motivates more to code even more.PLEASE.PLEASE

    • @sarahfuntanilla6542
      @sarahfuntanilla6542 4 роки тому +1

      I will buy Django course from you Mosh, please create many advance topic too in Django like REST API and real world projects. Connecting Django to MySQL or PostgreSQL too.

  • @chirilcugureanu1853
    @chirilcugureanu1853 4 роки тому +1

    I already took your Algorithms course in Java but implemented the algorithms in JavaScript! An amazing course! Really recommend it!

  • @shivendrachand1679
    @shivendrachand1679 4 роки тому +1

    Are the rest of the videos based on Algorithms still available on mosh's channel

  • @saadkhan7891
    @saadkhan7891 2 роки тому

    Sir, I'm your student from Pakistan
    I love your videos so much
    sir the reason for my texting you is a request that can you please upload tutorial about web scraping with python
    i watch many videos on youtube but your method of teaching was too good i really loved it
    can you please do that for your students

  • @rockincy
    @rockincy 2 роки тому

    This is called the art of teaching.

  • @CelestialCanvasTV
    @CelestialCanvasTV 3 роки тому +2

    Hey mosh , can u pls also make a video on bubble sort and insertion sort using *python*

    • @ATOZSTUDYWITHMYK
      @ATOZSTUDYWITHMYK 3 роки тому

      In python no algorithm steps are required just use the sort function directly

  • @sherazarain871
    @sherazarain871 4 роки тому +1

    Hey, mosh! Which language you are using in Data structure?

  • @lilit3552
    @lilit3552 3 роки тому

    Finally understood😊
    Thank you soo much!

  • @Saw-o3h
    @Saw-o3h 4 роки тому +1

    Hi Mosh
    all your tutorials are good, so could you please make a Linux tutorial for beginner to advance?

  • @umarsiddique511
    @umarsiddique511 4 роки тому +25

    hey Mosh thank u for that . but we still waiting for u r upcoming django course .

    • @KodiLearn
      @KodiLearn 4 роки тому +6

      @Ahmad Ebrahim It will be best if he put django + react but it will be enough if he put only django course also.

    • @hamzaanis2321
      @hamzaanis2321 4 роки тому +1

      Umar is he made django course?

    • @KodiLearn
      @KodiLearn 4 роки тому +1

      @@hamzaanis2321 Mosh told me that he is going to create Django course.

    • @hamzaanis2321
      @hamzaanis2321 4 роки тому +1

      @@KodiLearn Oh ok man

  • @ohmegatech666
    @ohmegatech666 Рік тому

    Thanks a ton for these videos. I dislike having an index that is inherently -1 like you've done with j as it is conceptually obtuse even if it makes the code slightly cleaner. I would prefer to just use a normal index for the while loop and then use (index-1) when you need to access the previous item. Also I think it can be confusing to use the letter j specifically for something like this as j is almost always used to represent an inner nested loop index which isn't really what we're doing here

  • @fangzsx0409
    @fangzsx0409 3 роки тому +2

    What is the purpose of dicrementing the loop variable inside the while loop? Thank you and I hope you all are doing great

    • @jeffreyestayobasanes
      @jeffreyestayobasanes 3 роки тому +2

      Dicrementing the loop variable inside the while-loop simply terminates the loop. Since the while-loop only runs when two conditions are met ( 'j is greater than or equal to zero' and 'array[j] is greater than the current), if the loop variable j is dicremented, from having a value of 0 it will become -1 and the conditions for running the while-loop is not met, so the loop is terminated.

    • @fangzsx0409
      @fangzsx0409 3 роки тому

      @@jeffreyestayobasanes Yeah thanks for replying bro. The purpose of dicrementing the j variable is not explain well in this video. I tried to watch other vids about insertion sort and it seems the purpose of dicrementing ng j variable is for comparing the current variable to the elements upto the leftmost variable via index (where array[0] == the first element in the array)
      The condition inside the while loop which is j >= 0 will terminate the loop.

    • @didactics740
      @didactics740 3 роки тому

      @@fangzsx0409 thanks bro, I too was looking for the same explanation

  • @grzegorzszymanik4154
    @grzegorzszymanik4154 4 роки тому +3

    hey Mosh. Did you remove all of your courses from Skillshare? I was going through your mySql course but I can't finish it :(

  • @miguelcaceres6763
    @miguelcaceres6763 3 роки тому

    thanks mosh

  • @AhamedKabeer-wn1jb
    @AhamedKabeer-wn1jb 3 роки тому

    WELL EXPLAINED .. THANK YOU..

  • @redtree732
    @redtree732 Рік тому

    Great tutorial!

  • @sarahfuntanilla6542
    @sarahfuntanilla6542 4 роки тому +2

    Hi Mosh, Thanks for the Great Video I hope you will add some training in your Java too like Unit Testing using JUnit and Mockito, Java Secure Programming (This course is very important and only few tutorials on Web some are very expensive to enroll), Spring Framework and a Full Stack Developer which can give knowledge and experience to have good Job in Java World. Have a happy and Long life to you Mosh!!!.

  • @mahadevhatti5228
    @mahadevhatti5228 4 роки тому

    amazing explaination baldy!!!

  • @sahandsanaei3086
    @sahandsanaei3086 5 місяців тому

    great as always

  • @u_u7094
    @u_u7094 4 роки тому +1

    Love your videos.

  • @AlejandroNavarroD
    @AlejandroNavarroD 4 роки тому +1

    After finish Redux course I going to start with Data structure course! Thanks you Mosh and keep going teaching us new things :)

  • @herevancelightena9770
    @herevancelightena9770 4 роки тому +1

    Have you released video about bubble sort?

  • @reviewsbyraf
    @reviewsbyraf 3 роки тому

    i am much beginner to understand such questions can some1 ttell
    Given the following array passed to insertion sort algorithm below:
    A[] = {33, 45, 50, 32, 17, 67}; // Array is beginning with zero index
    INSERTION-SORT(A)
    Set j=3
    key = A[j]
    i = j - 1
    while i >= 0 and A[i] > key
    A[i+1] = A[i]
    i = i - 1
    [End While Loop]
    A[i+1] = key
    END
    What will be the new array A after the above code runs.

    • @reviewsbyraf
      @reviewsbyraf 3 роки тому

      and this
      Given the following array passed to insertion sort algorithm below:
      A[] = {33, 45, 50, 32, 17, 67}; // Array is beginning with zero index
      INSERTION-SORT(A)
      Set j=3
      key = A[j]
      i = j - 1
      while i >= 0 and A[i] > key
      A[i+1] = A[i]
      i = i - 1
      [End While Loop]
      A[i+1] = key
      END
      What will be the next index of key?

  • @elizarbucal348
    @elizarbucal348 Рік тому

    Thank you !

  • @DhhyeyDesai
    @DhhyeyDesai 4 роки тому +1

    Hey! Nice video mate :)

  • @thanossym2281
    @thanossym2281 3 роки тому

    Thank you for your video! great Job! :)

  • @maharshpatel9243
    @maharshpatel9243 2 роки тому

    Loved this video! very simple to understand and follow along! Thank you so much Mosh

  • @masonbrown533
    @masonbrown533 3 роки тому +2

    The elements are not sorted right after they are moved I thought. Not until the very end are they sorted. That’s what my teacher said and it seems right. Now I’m confused

  • @harifhadi8620
    @harifhadi8620 4 роки тому

    Mosh can u pls make a video about Java frameworks and how to use them well

  • @dharshinisekar7036
    @dharshinisekar7036 2 роки тому

    Thank you

  • @shdotcomdata8213
    @shdotcomdata8213 3 роки тому +1

    May I know which software you are using to create these tutorials?

    • @Jonny-op3wr
      @Jonny-op3wr 3 роки тому

      He's using the IDE called Intellij

  • @ronit043
    @ronit043 4 роки тому +2

    I have a question, in this algorithm, the second loop is a while loop why?

  • @ayushsatecsh9930
    @ayushsatecsh9930 4 роки тому +1

    Which screen recorder do you use?

  • @vikillakkavatri4070
    @vikillakkavatri4070 4 роки тому

    Hey mosh you teach all js course for algorithm you choose java Y? We need it in js

  • @armanahmed4806
    @armanahmed4806 4 роки тому

    As always wonderful video sir plz make one video on Django

  • @arfzbk
    @arfzbk 3 роки тому

    Simple is the best!

  • @debakroy1842
    @debakroy1842 2 роки тому

    Beautiful.

  • @rianzamanx
    @rianzamanx 4 роки тому

    Please open a discord server for Python and other programming purpose. :)

  • @mithungowdabn324
    @mithungowdabn324 4 роки тому

    Hi can you please make a vedio of how to use a macbook Pro, complete ( A-Z ) guide , this would help me a lot please

  • @MixInfo4554
    @MixInfo4554 2 роки тому

    very helpful.

  • @jinglejam1
    @jinglejam1 4 роки тому

    hi mosh thank you i have a question do you have a hdml course i would love to learn that after python

  • @ruhunumaya6111
    @ruhunumaya6111 2 роки тому +1

    Wow good vidio

  • @Pink_Rose634
    @Pink_Rose634 4 роки тому

    awli bod moshveq jan movafaq bashi : )

  • @oduboteabayomi1237
    @oduboteabayomi1237 4 роки тому +1

    Hey Mosh! I really do love your UA-cam videos and hope to explore some courses on your website , but I’m having difficulty in creating an account (the captcha appears to be half).
    Would be glad if this issue is resolved.

  • @sujitprabhakaran9886
    @sujitprabhakaran9886 7 місяців тому

    Where do I find Selection Sort by Mosh?

  • @aryamanarora2765
    @aryamanarora2765 Рік тому

    what does o in the time coplexity calculation represent. if I had a list of 6 items and wanted to see the best and worst case times to sort these items how would I calculate how long this takes.

  • @itknowledgehub7963
    @itknowledgehub7963 4 роки тому +2

    Dear sir make a lecture about python an data science.
    I really like your explanation method.
    Sir please

  • @staffordnelson9053
    @staffordnelson9053 4 роки тому

    Thanx!

  • @rohitmadhav3672
    @rohitmadhav3672 4 роки тому

    Hi mosh, this is rohit from India. I ve been following and practicing ur python tutorial very attentively.
    Im an economically backward student to purchase ur course in dollars or somewhere around to the higher prices when converted my rupees into ur currency & where I cant afford it.
    Can u pls help me through some easiest way to gain ur valuable certification of Python (Community) through online, so that I can add it in my resume and can appear for interviews which can give me a great potential to get selected.
    Sincerely,
    Hoping for the best assistance from u
    thank you.

  • @Kindle_3
    @Kindle_3 4 роки тому +1

    Hi loved your python course

  • @rideforworld
    @rideforworld 4 роки тому

    Hey mosh Can I use it in JavaScript?

  • @QattanM
    @QattanM 3 роки тому

    Wonderful

  • @roadsidevlogs7855
    @roadsidevlogs7855 4 роки тому

    Wanna buy the react native course but its too expensive

  • @rosellemantile9537
    @rosellemantile9537 4 роки тому

    Is this can run using mobile phone in the app of MOBILE C?

  • @Natasha-to1mh
    @Natasha-to1mh 4 роки тому

    Please create a graphql course :)

  • @vikashagarwal2050
    @vikashagarwal2050 4 роки тому

    Hey mosh... it will be really helpful if you provide R package classes also

  • @ahmedthebest
    @ahmedthebest 4 роки тому

    I have a question that bothers me a lot.
    Why we still need Web Developers (despite services like Wix, Squarespace etc). .
    I feel this is the end us,😒😒😒

    • @abu2musa
      @abu2musa 4 роки тому +1

      Wix, Squarespace and others are good for general website elements which are used a lot, however these run on php (wordpress) cms which is been replaced by other technologies like nodejs & react, also making application which specific functionalities which are not available to wix and others, you'll need to learn coding

  • @siasquad7360
    @siasquad7360 4 роки тому

    Big fan sir you are my idol

  • @animeshrastogi8315
    @animeshrastogi8315 2 роки тому +1

    Won't it be O(n^2) for the worst case?

  • @yogendramaarisetty
    @yogendramaarisetty 4 роки тому

    What do you use for animation

  • @oladosutayo3576
    @oladosutayo3576 4 роки тому

    And a full course on algorithm and data structure.. It's way more simple to learn from Mosh

  • @DamnBoii123
    @DamnBoii123 4 роки тому +1

    Site Google pay is not working at the checkout

  • @tejasukalkar2199
    @tejasukalkar2199 2 роки тому

    sir what if one or all of numbers are negative? then code may fail, so how do we tackle that?

  • @Jayantch.999
    @Jayantch.999 4 роки тому

    Superrrr👍

  • @vuthysharing6618
    @vuthysharing6618 4 роки тому

    absolutely

  • @usama57926
    @usama57926 4 роки тому +2

    You haven't uploaded *Insertion sort algorithm* yet.

  • @oreoluwaadeyegbe4670
    @oreoluwaadeyegbe4670 2 роки тому

    Any help on how to use mutex and channels on a sorting algorithm in go language

  • @Mona001-01g
    @Mona001-01g 3 роки тому

    How is shifting and inserting different from swap?

  • @ericmiyan3466
    @ericmiyan3466 2 роки тому

    is this eclipse?

  • @Atomiqal
    @Atomiqal 4 роки тому

    Quick question, why do we have to decrement j after shifting the greater value to the right? Can't we just use the same j index to store the current into the array without decrementing it?

  • @gamingmonkeyyt8583
    @gamingmonkeyyt8583 3 роки тому

    Why do we decrementing j?

  • @ilyasjaghoori415
    @ilyasjaghoori415 2 роки тому

    How to do with generic data types?

  • @MandolinSashaank
    @MandolinSashaank 4 роки тому

    I can't control my excitement at the moment 🔥🔥🔥

    • @MandolinSashaank
      @MandolinSashaank 4 роки тому

      @@programmingwithmosh I really did enjoy it. The graphical presentation of the insertion sort did take it to the next level

  • @MUSIXATOMIUM
    @MUSIXATOMIUM 4 роки тому

    Sir I'm in 11th class and want to make a website or like an app called u please help me out

  • @c_29_atharvakulkarni45
    @c_29_atharvakulkarni45 Рік тому

    inshah allah boys played well

  • @shreyasrai1339
    @shreyasrai1339 4 роки тому

    I just wanna thank you for python tutorial you are a great teacher Also please put a course on data structures

  • @Niv888
    @Niv888 3 роки тому

    why i can't use keyword "var"? and how make var not be error?

  • @iankoech4967
    @iankoech4967 3 роки тому

    Could someone please help me in understanding why arr[j+1] = current