Bubble Sort | C Programming Example

[@ngl_soloqueue]

dude is speaking in most understandable language

[@PortfolioCourses]

I’m glad you found the language understandable Doniyor! :-)

[@logos_13]

Great Again: How to Transform a Complex Topic into Clear and Efficient Explanations. 🙏

[@PortfolioCourses]

I'm glad you enjoyed it! :-)

[@persfallow6522]

I've been searching for the optimized version of the bubblesort algorithm for some days, you posted this video explaining it in a very simple and complete form. I'm glad to have found your channel, i will denitively watch all your c tutorial now, you explain better than any programming profesor i've ever had at the university. (Sorry for my bad English, english is not my native language)

[@Acksakal]

Pls. stop apologizing for smth that is not under your control. It's actually irritating people. I understand why you did this, English is not my first language as well, so I truly truly understand why one would say smth silly like that, but trust me you don't have to.

[@OCEAN-fc9wl]

Thank you! I had a hard time understanding the code of bubble sort until I stumbled upon this video! Very well explained.

[@PortfolioCourses]

I'm glad to hear it was helpful, and thank you! :-D

[@dwivedys]

I agree - this is a brilliant explanation!

[@vaporr5929]

Extremely well explained!! Came from Bro-code's channel and had to find an explanation for bubble sort. Subscribed and liked. Thank you for your guidance Kevin!

[@PortfolioCourses]

You're welcome, and thank you for the kind words! 🙂 And welcome aboard!

[@publicstaticvoid1010]

Taking a moment to thank you. I came from other videos (much more famous ones too) and they would only explain how the sorting algorithm works, but not the code. They would just write it without breaking it down. But, you did this! It's freaking amazing. I'm not even familiar with C but properly understood every single thing in this video. Awesome resource, much better than the other ones I've checked out so far.

[@PortfolioCourses]

Thank you for the positive feedback, I appreciate it. :-) One of my big goals is to explain what is happening "in the code" by breaking it down step-by-step, so it's really great to me that you enjoyed that.

[@publicstaticvoid1010]

@@PortfolioCourses No problem! You're helping many people understand the underlying programming concepts. Have a great one :)

[@BenvelMusic]

I'm going through the CS50X course and your C lessons are the perfect addition to fill the gaps that CS50X has. CS50 + this are perfect companions.

[@PortfolioCourses]

That's excellent to hear that, thanks so much for sharing that feedback. CS50X is such an excellent resource that I'm happy someone familiar with it thinks these videos make a perfect companion. 🙂

[@BenvelMusic]

@@PortfolioCourses so CS50 is really a great resource but the main complaint is that it leaves a lot of gaps for people who learn online instead of actual Harvard and there’s a huge gap between lecture , supplemental materials and labs and psets. So good job 👏 your course is extremely helpful in a way it’s broken down compared to other stuff I looked through:) I can easily make a playlist putting your stuff together with their stuff as for one comprehensive course :)

[@PortfolioCourses]

@@BenvelMusic That's awesome. 🙂 I wonder if *I* should make that playlist then and share it with my viewers, "CS50: Gaps Filled" or something like that haha...

[@BenvelMusic]

@@PortfolioCourses I bet you could do it better than me... But it would be a great help for students who are struggling with the assignments after watching lectures and shorts plus it's a great marketing move to get traffic ;)

[@PortfolioCourses]

Haha that's why I may try to do it!

[@Learn_Master]

For those who haven't discovered still this channel on yt. They are missing treasure ❤

[@intifadayuri]

As a software engineering student we're kinda forced to learn java (at least in my school). But I'm way more interested in C so here I am. Love your videos, you are good at teaching 😊

[@PortfolioCourses]

Thank you so much for the kind words Yurika, I'm really glad to hear you love the videos. :-) I like Java... but there's something about the simplicity and purity of C that I really love.

[@ryanprasad2090]

I was trying to get ChatGPT to explain the inner and outer loops to me. Your video has it beat. Thank you for making this!

[@PortfolioCourses]

You’re welcome! :-) And I worry sometimes ChatGPT could put me out of a job so it’s great to hear that too.

[@PortfolioCourses]

Thanks for the donation too by the way I just saw that now, much appreciated! :-)

[@shamalpha2202]

i bet no one can explain like this ........i am literally in the other world..........thanks to portfolio courses and the owner...keep posting more concepts..

[@PortfolioCourses]

You're welcome, I'm glad you enjoyed the video! 🙂 You might like these C programming playlists as well: Tutorials: kzbin.info/www/bejne/qZbTfGitabqYppI Examples: kzbin.info/www/bejne/naLCi4t5qrebi5Y

[@hxhchimeraantarc2268]

I was about to say isn't doing nested loop ineffective but u covered it. nice video!!

[@PortfolioCourses]

Thank you, I'm glad you enjoyed it! :-)

[@navidradiat9876]

Thanks for the tutorial, you went straight to the point which I liked very much and you explained everything clearly. I was really having problems understanding the swapping part at first until I found your video, and I'm thankful for that. Gotta say, you're pretty underrated man. I hope more people will find out your tutorials. Keep up the good work!

[@PortfolioCourses]

Thank you very much for the positive feedback Navid, I really appreciate the kind words. I hope over time more people find the channel too! :-)

[@fifaham]

Thank you Kevin, that was very smart optimization. As a developer I like to peek into your videos to learn your tricks that are easy to implement but need an expert like you to guide us to them. You make a great mentor for developers and professionals.

[@PortfolioCourses]

Thank you for the support Firas! :-)

[@fifaham]

@@PortfolioCourses kzbin.info/www/bejne/mHLNe6CdbM6nopY

[@fifaham]

@@PortfolioCourses I placed your link in the video title, if not Ok then I will remove. Please let me know.

[@PortfolioCourses]

That's cool, thank you for making that and sharing that Firas! :-)

[@t6hp]

I quickly grasped the basic bubble sort but struggled with its optimizations until I saw your video. Your clear explanation and unique syntax really helped. Thanks a lot! Could you consider making a LeetCode problem series? Your intuitive approach would be a great fit. Cheers from Egypt.

[@gayanishanka9775]

This is the best bubble sort explanation with everything related to it. and the optimization part was so useful. like reading a book

[@PortfolioCourses]

Thank you so much Gayan for the positive feedback! :-) I'm so glad to hear you enjoyed it.

[@miguelcosta4450]

I don't understand the bool swapped! When the condition is not happens because a[j] is high... Swapped will never be true and the program stop working?

[@PortfolioCourses]

Yes Miguel, it sounds like you've got it. When swapped is never set to true, that means we never found any out of order elements, and in that case we *want* the program to stop working because the array must be sorted. :-)

[@christopheanfry]

Thank you so much for tour content, doing cs50 with your clear explanations it helps a lot. Very well explained.

[@PortfolioCourses]

You're welcome Christopher, I'm glad the explanations have been helpful for you! :-)

[@ericcheng8808]

Very clear and useful! Helped me a lot, better than a lot videos on KZbin. Love the step by step explanation and you speaking speed. Hope to see more of your video coming! Again, thanks!

[@PortfolioCourses]

Thank you very much Eric! We've got lots more videos to make, and a couple hundred C programming KZbin videos listed on our channel already. :-) You might like the Insertion Sort, Quicksort, Merge Sort and Selection Sort videos too!

[@SarahA97]

you are amazing! you explained everything in the perfect order. i understood from the first time with zero confusions. thank you so much.

[@PortfolioCourses]

You're very welcome Sarah, I'm glad to hear the explanation was helpful for you! :-)

[@Partridge22]

very useful, i like you give an explanation for each section of code you write Thanks alot

[@PortfolioCourses]

You're welcome! :-) I'm really glad to hear hat you like the way the code is explained.

[@ronsalife]

Your channel is saving my college degree!!

[@PortfolioCourses]

Aww I’m so glad it’s helping you out, and good luck with your degree, you’ve got this! :-)

[@mimicmian]

謝謝！

[@PortfolioCourses]

Thank you so much! :-)

[@ripeveryday5607]

thank you man i have exams tomorrow and you helped me

[@PortfolioCourses]

You’re very welcome, and good luck on your exams! :-)

[@partoffans5849]

dear , when you make last change on swapped , the program when get to not swapping will end the do-while loop what if after the not swapped pair there is unsorted elements right ?

[@youtubeuser2352]

I am very much comfortable doing for loop so here's what I did: void bubbleSort(int *arr, int count){ int i, j, temp, counter = 0; //This is to traverse the array from left to right for(i = 0; i < count; i++){ counter++; //This is to compare the array //When you do a bubble sort, the element with the biggest value will be moved to the last index //So no need to compare until the last index when you traverse hence the counter for(j = 0; j < count-1-counter; j++){ if(arr[j] > arr[j+1]){ temp = arr[j]; arr[j] = arr[j+1]; arr[j+1] = temp; displayArr(arr, count); } } } // displayArr(arr, count); }

[@PortfolioCourses]

Looks good! :-)

[@youtubeuser2352]

​@@PortfolioCoursescheers! I saw you have recursion and text as well as binary files. Will dig into those these coming weeks.

[@PortfolioCourses]

@@youtubeuser2352 Cool! 🙂

[@justcurious1940]

Wait, it's wrong bro, u should put counter++ after the inner loop which is the same as using the i (variable) 🙃, sorry I tested your code just out of curiosity 🙃.

[@youtubeuser2352]

@@justcurious1940Hi it's great you tested it out. It worked in my end but will test out your feedback!! I hope this YT channel starts a coding club where members can teach one another. Cheers!!

[@_RahmaF]

You are the best by far and I'm not exaggerating when I say that. Thank you very much for everything, keep going 👍👍

[@PortfolioCourses]

You're welcome! 🙂 And thank you very much for the kind words and encouragement!

[@zahidhossainbhuiyan488]

just 10 seconds into the video and that's a great voice there ...

[@PortfolioCourses]

Haha thank you Zahid! :-D

[@MrDelliSanti]

Thank you very much. You made the temp variable very understandable!

[@PortfolioCourses]

You're welcome Chris! :-)

[@slavenpenava5413]

Second time watching this video after failing my first programing 1 exam and after taking programing course in c++ so many things are clicking for me while relearning c for my redo exam and now i finally understand why so many things are the way they are even the simple bubble sort that before confused tf out of me now looks so simple and i understand why for loops indexes and swaps are like that.

[@PortfolioCourses]

Awesome, I'm glad to hear your understanding of these concepts is getting better, keep going, and good luck on your redo exam Slaven! :-)

[@slavenpenava5413]

​@@PortfolioCoursesmanaged to get 55%, much less than I was hoping for but it's still a passing grade although it could've been more if I remembered how to do string palindrome check with recursion

[@t6hp]

This is a bit too advanced for someone studying programming 1, to be honest. Sorry about that man. I'm trying to change my career and do a 2-year diploma, this stuff only came up in Algorithms 1 and Data Structures 1 in my second year. Don't give up, you'll get there!

[@natb007]

Danke!

[@PortfolioCourses]

Wow, thank you so much Nat!!! 😀❤

[@Thecurlygirly-wh]

WOW! u r amazing! Im watching this videos from Israel,you'r so clearly! thank you sooo much!

[@PortfolioCourses]

You’re welcome! Glad to hear you enjoy the video! :-)

[@noligrutas]

Also coming from CS50x. Thanks so much for the help!

[@PortfolioCourses]

You’re very welcome! :-)

[@muhammeddikal8551]

Thanks a lot, perfect explanation.

[@PortfolioCourses]

You're very welcome, I'm glad you enjoyed it! :-)

[@heartfraud]

You have a great voice. Thank you for this video!

[@PortfolioCourses]

Thank you for the kind feedback, and you're welcome! 🙂

[@tuomasbazzan1523]

thanks my dude this was very useful

[@PortfolioCourses]

No problem Tuomas! :-D

[@BigBoss-rh8mz]

just need some clarification...please correct me if i am wrong but i believe the outside for loop only needs to be iterated "length - 1" times. for example, if sorting in ascending order and "0" happens to be at a[9], then it will take "length - 1" or 9 iterations to get "0" to a[0]. by the way, a CS50 companion playlist would be great as others have mentioned

[@PortfolioCourses]

That's true, though as shown in the video we can optimize it much more than this by stopping the loop when no swaps occur. :-) I'm actually not *super* familiar with CS50 beyond know what it is... maybe one day I can make a playlist, or if someone else can pull together a playlist of videos that pair well with CS50 that would help too.

[@najdadgc02]

the best explnation i could find so far! my professor said bubble sort is bad is that true or can i still use it?

[@PortfolioCourses]

Bubble sort isn’t something people use in the real world because there are faster algorithms we can use instead, like Quicksort. So it’s not really “bad” so much as other better alternatives exist. :-) But it’s still very popular to learn bubble sort because it helps us learn about algorithms.

[@ramimehyar481]

Excellent explanation, however, if you use (length - i) in the inner loop instead of (length - 1) you will iterate less, and save time. This way it will not iterate over the upper edge of the array again and again, since that the upper edge will be sorted quicker by simply dragging the digit down over time.

[@PortfolioCourses]

Thanks Rami! In the first part of the video a completely non-optimized version is covered for explanation purposes, the optimized version is covered later in the video. :-)

[@dandesgeorge]

the most usefull video on this topic👑👑👑👑

[@Jorge-ni9pj]

Thats a gread video, keep up the good work. Nice lessons!

[@PortfolioCourses]

Thank you very much, I'm glad you liked it! :-)

[@velenvskaelhas]

For the second for loop can you do "j = i+1" and then remove the "j + 1" from the if statement? or does the nested for loop have to be "j = 0"?

[@PortfolioCourses]

Great question! :-) It does have to be j = 0. The problem is that each "run" of the inner loop only swaps elements that are next to each other and are unsorted. It doesn't guarantee that, for example, the first portion of X elements in the array is sorted after Y runs, or anything like that. Algorithms like insertion sort and selection sort work like that, but not bubble sort.

[@velenvskaelhas]

@@PortfolioCourses ah, thanks for the info and quick reply!

[@JH-ux1re]

Thank you so much! Eventually I understood what bubblesort means!

[@PortfolioCourses]

You’re very welcome! I’m glad to hear you figured out bubble sort. :-D

[@justcurious1940]

Thank u Kevin, great video this is the same code but using for loop and break statement instead of do while loop, I'm not sure if they are the same when it comes to performance : int array[] = {4,1,-6,9,5,66,-99,0,6358,-58624}; int length = 10; bool flag = true; for(int i = 0 ; i < length ; i++){ for(int j = 0 ; j < (length-1-i) ; j++){ if(array[j]>array[j+1]){ int temp = array[j]; array[j] = array[j+1]; array[j+1] = temp; flag = false; } } if(flag) break; } for(int i = 0 ; i < length ; i++){ printf("%d\t",array[i]); }

[@PortfolioCourses]

That looks good to me! :-)

[@nub8312]

Great tutorial but what if in 10:08 we use i < (length - 1) instead of i < length

[@PortfolioCourses]

That will work too. :-) The best way that we want to optimize the outer loop is covered towards the end of the video. Using length -1 will save us one iteration of the inner loop, but checking if a swap occurred can save us many, many more for large lists.

[@nub8312]

Yea, that was is much better. Thanks :)

[@nub8312]

@@PortfolioCourses oh and btw did you also make a video about the "max_repeating_element" in an array. Like in this int numbers[] = {1, 2, 3, 2, 1, 3, 1, 2, 3, 1}; the Maximum Repeating Element is 1

[@PortfolioCourses]

Yes I have a video on that topic here: kzbin.info/www/bejne/jJ_Wnpp-er-cgqM. :-)

[@abhivish2017]

Wow.. well explained.. thankyou so much..

[@PortfolioCourses]

You're very welcome Abhi! :-)

[@xanaxity]

do-while is a bit overkill, but im studying for exam so I'll cut that part out if question came. Nice video nonetheless.

[@freelance-writer]

great explanation!

[@majidelmardouli7174]

Clear and simple thanks a million

[@PortfolioCourses]

You’re welcome Majid, I’m glad you enjoyed it! :-)

[@mrdarbab]

we learned this on the c64 in school. and the divide and conquer.

[@baboucarrgibba9336]

thank you so much, the explanation was perfect .

[@PortfolioCourses]

You’re welcome Baboucarr! :-) And thank you for the kind feedback.

[@kanho.e]

Thanks you explained it well

[@adamsetterberg5223]

First thing Great video!

[@PortfolioCourses]

Yes, we have a video on filling an array with random numbers here: kzbin.info/www/bejne/a4CpfZyqZr-ZY7M. You could use this technique to sort random numbers. You may find this video interesting too: kzbin.info/www/bejne/aZvRo5WqpLyaetE.

[@iceplayer3722]

Iwant to know how to sort numbers in lottery, because its big problem for me.

[@DoxaPacheci-mk4hj]

using something matematicions call pseudoramdom u create a seed with a random binary number and multiply the number sorted by the pseudonimber that will generate random number

[@dilhyderstudios8569]

Tq so much❤️ it is easy to understand

[@PortfolioCourses]

You're very welcome! :-D

[@aizen1101]

wow. this video is just great!

[@PortfolioCourses]

I'm glad you enjoyed the video! 🙂

[@mr.fantastic3827]

Why is it i < length and not i

[@PortfolioCourses]

Great question! It’s because arrays are zero indexed in C. So if we have an array of length 3 the indexes for the array are 0, 1 and 2. So if we kept the loop going until i equals length, we would be using the index 3, which is one past the end of the array. :-)

[@drago-ig6ms]

the best in the net!!!

[@PortfolioCourses]

Thank you very much for the positive feedback, I’m glad you enjoyed the video! :-)

[@dostseferoglu6853]

what a nice tutor,al

[@PortfolioCourses]

Thank you!

[@robf5550]

This is soo good thank u!!

[@PortfolioCourses]

You’re welcome Rob! :-)

[@tarikahmad4749]

you are so so good brother

[@PortfolioCourses]

Thank you for the support Tarik! :-)

[@NikitaSafronov-y6i]

The best! As usual

[@PortfolioCourses]

Thank you… as usual! :-)

[@NikitaSafronov-y6i]

@@PortfolioCourses Sir, are you a Professor/Teacher at some Uni or College? Maybe used to be. =)

[@PortfolioCourses]

@@NikitaSafronov-y6i Yes, I teach at both a College and University in Canada. :-)

[@ardeltiocojefflauron8882]

Thank you so much you saved me

[@PortfolioCourses]

You're very welcome Ardel, I'm glad to hear the video helped you out! :-)

[@mayankbadodiya5353]

thank you so much sir

[@PortfolioCourses]

You're welcome Mayank! :-)

[@natb007]

Thank you so much!

[@PortfolioCourses]

You're welcome! 😀

[@kaltube4817]

well done

[@dexdox_startups]

i cant thank you enough !!!!!!

[@PortfolioCourses]

You’re very welcome Muhammad! :-)

[@quanloithanh3934]

😍😍😍

[@PortfolioCourses]

I'm glad you enjoyed it Quan! 😀

[@خالدالناشري-د5ز]

Goood job Keep going on

[@PortfolioCourses]

Thank you! 😀

[@Ryokans]

LOVE YOU!!

[@PortfolioCourses]

Thank you Ricky! :-)

[@marbles5590]

Your lessons are nice, but I'm still having a hard time absorbing such things.

[@PortfolioCourses]

Algorithms like bubble sort are a level up in difficulty from learning the language basics, so I would say it’s normal for it to be hard to absorb them. :-)

[@odys1516]

its incorrect in c language

[@PortfolioCourses]

What is incorrect? The code is posted here, it should work: github.com/portfoliocourses/c-example-code/blob/main/bubble_sort.c

[@stpdaz]

Shout-out boss

[@PortfolioCourses]

Thank you! :-)

[@edward3105]

Man this look hard,why my Iq is so low? Why I can't change that? :(

[@PortfolioCourses]

Coding is tough for most people, and for a long time too unfortunately. If you keep at it, it can start to get easier though. :-) Sometimes the trick is to make sure you know all the required background concepts first. So before trying to learn bubble sort, I would try to learn about loops, if-statements, variables, etc, first. Maybe try starting off with this course for beginners first: kzbin.info/www/bejne/qaStimiDebGdotE. :-)

[@edward3105]

@@PortfolioCourses I understand the if,while,for statements but it's hard for me to solve problems since I don't have any ideas how to solve it.I measured my IQ it's 125,should I try to continue?I graduated Computer Science but mostly I copied to exams and now I am trying to learn embedded systems.Should I just watch tutorials or should I start writing code?

[@PortfolioCourses]

@@edward3105 I wouldn't worry about your IQ either way. :-) It's less about "IQ" and more about "learning how to learn". Learning how to solve programming problems is less about IQ and more about having a large amount of experience seeing how different problems are solved... once you understand how to solve many problems, it gets easier to understand further problems. But it takes a long, long time, and it's definitely not easy. But if you keep at it, it will get better. I would recommend both watching tutorials AND trying to write code. Maybe for each topic you wish to learn watch a tutorial, and then try to write code.

[@colinmaharaj]

This seem not right

[@justcurious1940]

Why ?

[@mimicmian]

[@kienluu2910]

Thank you very much!!

[@henrytzuo8517]

Thank you so much!!