How to Solve ANY LeetCode Problem (Step-by-Step)

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  • Опубликовано: 21 сен 2024

Комментарии • 128

  • @Codebagel
    @Codebagel  4 месяца назад +25

    Link to the free flowchart I used in this video:
    algo.monster/flowchart

  • @alex0917lfo
    @alex0917lfo 3 месяца назад +604

    At the first day of Leetcode , to be honest I felt I should give up. But 1 questions per day , 1 years later , I can pass 70% of easy and 40% medium. I even get an offer by passing 3 Leetcode questions with big bank company. So my suggestion is keep practicing Leetcode like you playing a game!!

    • @vrajpatel9259
      @vrajpatel9259 3 месяца назад +19

      hey, i want to ask you wether you did all of the questions on leetcode by you own without any help or you tried and when you were not able to solve it than you referred to any yt video? i am doing leetcode so i am not able to solve the questions ... i try to solve one question for 1 hr or more and than i refer to yt video. is this good ? any suggestions? Thanks

    • @alex0917lfo
      @alex0917lfo 3 месяца назад

      @@vrajpatel9259 Sure. Since you and my past self have no idea how to play the Leetcode game. Once you have no idea how to do it or don't understand the question within 10 mins , just look for the answer. There is no shame to look at it. The way I still doing it is look at the approach , and use that approach to create your own code.

    • @Mlakshman-w9k
      @Mlakshman-w9k 3 месяца назад

      ​​@@vrajpatel9259hey we are on the same page. But you know that's the way of getting learn from mistakes. Keep it on mind where we struck, why does it happens every time? Try 30-40 mins max for any level of question even though can't trick the solution then try to approach other's intuition and code, then try a dry run on your own.. That's where I found my solution. Keep it up buddy... Have a nice day

    • @dynamiteSoul2324
      @dynamiteSoul2324 3 месяца назад +8

      Same question as above

    • @bavnitsingh23
      @bavnitsingh23 3 месяца назад +10

      Yes buddy , think solution for max an hour
      If it's not clicking than you can see solution
      But after that don't forget to revisit the question after some intervals

  • @anirudh6635
    @anirudh6635 4 месяца назад +146

    If problem solving is your hobby then leetcode is a great place to be at.

  • @CommDao
    @CommDao 4 месяца назад +150

    The feeling after starting to learn sort methods: everything is sort!

  • @lisaw7074
    @lisaw7074 Месяц назад +6

    I just found your channel today and have watched a few of your videos. They are some of the best that I've ever seen when it comes to Leetcode prep with clear instructions and helpful tips. Thanks you so much for sharing these!

  • @incognitohacks4850
    @incognitohacks4850 4 месяца назад +14

    Finally getting serious about coding and this is really eye opening. Started revising and learning about algorithms to get a strong foundation. Thanks for the video

    • @Codebagel
      @Codebagel  4 месяца назад +2

      Great idea! Algorithms make up so much of coding, it’s super important to know the fundamentals.

    • @Randomshorts-r7u
      @Randomshorts-r7u 11 дней назад

      @@Codebagel What if there are not easy for me that what can I do to learn more...

  • @adesai1000
    @adesai1000 2 месяца назад +3

    This feels super helpful, I used to feed discouraged to do DSA cause I used to think I knew how to solve it but wasn't able to code it. This helped me realized it is more than that

  • @yunagarnetsan
    @yunagarnetsan 2 месяца назад +7

    I have a competition this Saturday and I've been asked to practice from leetcode. Let me tell you, I'm only a highschool student. The 'easy' question from leetcode take me a whole 30 mins to come up with an algorithm. I was told that I would be asked questions from medium and hard difficulties. With only 3 days left, I'm not sure of how much I would be able to prepare.

    • @Praveen_C11
      @Praveen_C11 Месяц назад +3

      Leetcode at highschool??, damn!!!

    • @yunagarnetsan
      @yunagarnetsan Месяц назад +8

      @@Praveen_C11 The competition is over, and I managed to get a speed of 15 mins/easy and 25 mins/medium before he competition. Turns out that the organisers were just exaggerating. All the questions were from easy and I managed to get second place. The team that got first just had twice the members as our team.

    • @dineshbh3837
      @dineshbh3837 Месяц назад

      ​@@Praveen_C11 ikr, i wish I learned code when I was in my dad's balls 💀

    • @hectortelloc
      @hectortelloc 18 дней назад

      @@yunagarnetsan Congrats, and happy to hear your follow up.

  • @RohaanKhalid-pz9iu
    @RohaanKhalid-pz9iu 4 месяца назад +29

    One of the best videos I have watched! Especially going through a problem using the flowchart.

    • @Codebagel
      @Codebagel  4 месяца назад +6

      Thanks so much! Walking through problems with a flowchart is a really systematic way to approach problems, and something I think engineering-minded people really benefit from.

  • @redfinance3403
    @redfinance3403 3 месяца назад +25

    That flowchart is genius!

  • @Websitedr
    @Websitedr 2 месяца назад +3

    I like the flowchart which makes more sense on how to systematically figure out which algorithm to use.

  • @homerlol9058
    @homerlol9058 4 месяца назад +6

    That flowchart seems extremely useful

    • @Codebagel
      @Codebagel  4 месяца назад +2

      The flow chart is amazing 👌

  • @electrode8773
    @electrode8773 3 месяца назад +2

    Keep it up brother...I was one of those subscribers when you had started this channel..Its inspiring to see you grow..❤❤

    • @Codebagel
      @Codebagel  3 месяца назад +1

      Thank you so much! I appreciate that you’ve been here since the start, hopefully I can keep making content that you can enjoy!

  • @vulpritprooze
    @vulpritprooze Месяц назад +1

    Sh1t, we literally skipped data structures and algorithms last year in my 2nd year at college. We had the subject but we weren't even taught about it (we basically hovered over linked lists and big O notation the entire semester!). I thought it wasn't important and thought how easy the subject was. Turns out I missed a lot! Now it's time to study hard 😢

  • @valentinrafael9201
    @valentinrafael9201 3 месяца назад +2

    Perfect practice makes perfect indeed.

  • @abhinavprabhakar455
    @abhinavprabhakar455 3 месяца назад +3

    Awesome! This video was very helpful. ❤

  • @Amuzeraa
    @Amuzeraa 4 месяца назад +5

    Thank you so much this really helps 😊

    • @Codebagel
      @Codebagel  4 месяца назад

      Thanks for watching!

  • @0986rashmi
    @0986rashmi 3 месяца назад +2

    Am a big fan of algo monster easy to follow those templates

  • @ttt69420
    @ttt69420 2 месяца назад +1

    The problem people have with these questions is that they try or think they need to invent this algorithm (extremely difficult). When in reality the question is merely testng your almost rote knowledge of an already existing solution.
    a truly unique answer requires a truly unique puzzle, and you just arent going to get that. These sites are learning tools not MENSA entrance exams.

  • @Sulerhy
    @Sulerhy 3 месяца назад +28

    I stoped video at :"My friends cracked FAANG with less than 100 solved LC problems"

    • @takeuchi5760
      @takeuchi5760 3 месяца назад +14

      If you keep refusing learning opportunities at every disagreement in opinion with the pretense that the teacher is unqualified or not suited, you will learn way less than someone who tries to learn regardless of some shortcomings in the teacher.
      I agree that the 100 problems thing is unrealistic but the video still has a lot of value.

    • @gnaneswarilolugu2323
      @gnaneswarilolugu2323 2 месяца назад

      That's a stretch but video itself is good.

    • @electric-lemonade
      @electric-lemonade 4 дня назад +3

      I know people at FAANG who have solved less than 70 problems. If you're fixated on the no. of problems, you're not looking at the right way

  • @Mubashir7933
    @Mubashir7933 3 месяца назад +3

    Maybe I'm dumb but what if I didn't understand question, what should I do?

  • @akshaychavan5511
    @akshaychavan5511 3 месяца назад +6

    Everytime I wonder, why is this channel so underrated? 🤔

    • @Codebagel
      @Codebagel  3 месяца назад +1

      Haha thank you! Hopefully it won’t be for long 🫣

  • @Salah-YT
    @Salah-YT 3 месяца назад +9

    Easy title, but why such a hard question, bro? You don't seem to care about beginners like me. You choose great content, but why explain such difficult problems? I couldn't even understand what you were talking about. Anyway, thanks.

    • @Codebagel
      @Codebagel  3 месяца назад +15

      Hi Salah, I’m sorry that it seemed too difficult! I intentionally wanted to choose a question that most people would consider “hard” to show you that if you follow these steps, you can solve any question, even if it’s very difficult. May I ask which parts you couldn’t understand? Maybe I can provide clarity and make my future videos better.

  • @unlucky-777
    @unlucky-777 4 дня назад

    It just 1 question per day, trust the progress and believe to yourself

  • @kav04
    @kav04 26 дней назад

    Example of how to identify a pattern using Ad's website even makes it more vague and complicated

  • @Joseph-uz2ry
    @Joseph-uz2ry 4 месяца назад +2

    God bless you. This is so clutch

  • @bbmeireles
    @bbmeireles 3 месяца назад +1

    Nice tips. Very thanks.

  • @Richa_cute
    @Richa_cute 3 месяца назад +1

    So far I have only completed less than 20 problems. Will get back to this comment when I’ve reached a century. 😊
    I know one doesn’t need to solve that many but I’ll taking a safety net so that I can also practice same kinda problems.

  • @harshdiwan9283
    @harshdiwan9283 4 месяца назад +3

    Hi , I have done the topics except dynamic programming and solve around 180 problems but still not able to build logic. Should i leave dsa ? Can you suggest me what should i do ?

    • @Codebagel
      @Codebagel  4 месяца назад

      Hi! What areas do you find you struggle with the most? Is it recognizing the pattern? Is it knowing what to code?

    • @harshdiwan9283
      @harshdiwan9283 4 месяца назад

      @@Codebagel both. Sometimes know the approach but not able to convert it into code.

    • @BlessingAwodeyi
      @BlessingAwodeyi 3 месяца назад

      I'm facing the same problem

    • @neetaspirant901
      @neetaspirant901 3 месяца назад

      Solve recursion problems

  • @aniver987
    @aniver987 3 месяца назад +1

    U think you can make another video of what to learn before leetcoding

  • @FaberLSH
    @FaberLSH 2 месяца назад

    Thank you! but where is the wordList? I'm trying to run this code but I don't know what is the begin and the end word.

  • @aninditabatra3810
    @aninditabatra3810 4 месяца назад +1

    love this video!

  • @nintendopro0391
    @nintendopro0391 4 месяца назад +36

    I hate how interviews force Leetcode questions. Super annoying. I couldn’t get through the first problem.

    • @dss963
      @dss963 3 месяца назад +21

      The more you are good at solving these problems, the more you are able to come up with solutions for real-world probelms.The probelms test your ability to understand the requirements and write corresponding code for the same. So that's only way to test logical and analytical capabilities of a programmer.

    • @hello_world849
      @hello_world849 3 месяца назад +5

      @@dss963 btw leetcode is not real world problem solving after solving few question I realized that

    • @dss963
      @dss963 3 месяца назад

      @@hello_world849 you may come to use your intellectual and logical thinking where you might need to optimise the code for large data volumes. In such scenarios what you learned in algorithmic part come into play. And data structures btw is the core for a software developer or programmer.

    • @the-snailinator
      @the-snailinator 3 месяца назад +6

      ​@@dss963 I remember all the times I used DP to model roles and users with active record... Hmm that can't be right. Maybe that was when I added some endpoints to a rest api.. Nope... Hey maybe it was inside a Temporal workflow I made? Or adding payment handling by integrating with Stripe? Nah.

  • @tuntumwakalasya5270
    @tuntumwakalasya5270 4 месяца назад

    Is this question like bus routes the hard question ? Great video

  • @oooooooooOoOoOo571
    @oooooooooOoOoOo571 2 дня назад

    well the problem is im not even getting an interview offer to show off my leetcode skills god damn it

  • @DSASolutions
    @DSASolutions 12 дней назад

    Useful ❤

  • @moveonvillain1080
    @moveonvillain1080 4 месяца назад +3

    4:52 me crying in my $13/day full time frontend developer job

  • @shivamsiddharthasinghrajaw7671
    @shivamsiddharthasinghrajaw7671 3 месяца назад +5

    these things come naturally when you've practiced enough

  • @yohahnribeiro6029
    @yohahnribeiro6029 3 месяца назад +1

    Random observation, but in the slide that shows the final BFS solution, I think the code that checks if the new word is in the word list and not in the visited and not the word itself, needs to be indented to sit under the inner for loop?

    • @Codebagel
      @Codebagel  3 месяца назад +1

      Good catch… 😅 after hours and hours of editing you’d think I’d catch everything but sometimes something slips through. Thanks for catching that!

    • @yohahnribeiro6029
      @yohahnribeiro6029 3 месяца назад

      Hahah I'm sorry, didn't mean to devalue the effort at all. This video was incredible and thank you very much for making it 🎉❤

    • @Codebagel
      @Codebagel  3 месяца назад +2

      @@yohahnribeiro6029 Haha no worries not at all! I actually like it when people point things out because I know to keep an eye on that for future videos! Only way to grow is to learn from mistakes, so thank you 😁

  • @haniissa1990
    @haniissa1990 3 месяца назад

    I want to be sure , in 1:57 you try to change begin-word to the word in the word-List until to reach the end-word

  • @amusicated
    @amusicated Месяц назад

    the link to the flowchart doesn't work for me unfortunately

  • @AlienAndrew51
    @AlienAndrew51 3 месяца назад +1

    Worked at several fortune 500s without learning advanced leetcode, can only solve the easy problems which is what is mostly required at most companies.

  • @doitwithghausiya2870
    @doitwithghausiya2870 3 месяца назад

    this is by far the nicest video I have ever watched.

  • @fantasm0-
    @fantasm0- 18 дней назад

    Fine. I'll subscribe.

  • @osc8468
    @osc8468 Месяц назад

    Thanks!
    It seems your solution is not working, there is a Time Limit Exceeded but great explanation anyway.

  • @sproutboot
    @sproutboot Месяц назад +1

    Ha~ some questions sadly i dont get it even i see the solution and watch yt. Anyone has experienced same thing ?

  • @taradean.
    @taradean. 4 месяца назад

    thanks!

  • @powerHungryMOSFET
    @powerHungryMOSFET 3 месяца назад +5

    Leetcode is used for cracking interviews. It has nothing to do with talent. Even a cab driver can do it if he puts some time and effort’s

  • @1234victorxD
    @1234victorxD 3 месяца назад

    Dude im doing an interview in a week and you might made me land a job... You know what? if you did I will pay back to you and the community. See you in a week!

    • @jeffreydijkstra3391
      @jeffreydijkstra3391 3 месяца назад

      dude, what happend? :D

    • @1234victorxD
      @1234victorxD 3 месяца назад

      @@jeffreydijkstra3391 They postphoned my interview and its going to happen tomorrow! wish me luck!

    • @1234victorxD
      @1234victorxD 3 месяца назад

      @@jeffreydijkstra3391 Sup! I just received the answer that they are not going to hire me... even tho I have solved every code challenge in optmal solution and with no bugs. I Also did a nice System Design Interview... I think I might have been declined because of the Behaviour questions...

  • @_bigthor
    @_bigthor 21 день назад

    I've never done any leetcode problem and I haven't had any problem to get a job

  • @s8x.
    @s8x. 3 месяца назад +1

    wait i need this flowchart

    • @Codebagel
      @Codebagel  3 месяца назад

      Check the pinned comment - it’s completely free!

  • @suryapratapsingh5046
    @suryapratapsingh5046 2 месяца назад +1

    Me who is grinding for a free t-shirt from leet code 😂

  • @ItWasEnder
    @ItWasEnder 3 месяца назад +1

    Filthy Frank reference, the goat

  • @hossain9410
    @hossain9410 3 месяца назад

    is it neccessary to have any achievements in coding competitions to land a job???

    • @adyan4010
      @adyan4010 3 месяца назад

      Not mandatory but will be a plus point in your resume

  • @user-vx6hs8tu9v
    @user-vx6hs8tu9v Месяц назад

    )If some idiots didn't solve these questions for interview.., we wouldn't have to spend time on them to get a job.

  • @haniissa1990
    @haniissa1990 3 месяца назад

    from 2:32 , from dog ->lot I had to change two letters ? not one at the same time.

    • @BlackwaterEl1te
      @BlackwaterEl1te 2 месяца назад

      he went from dog -> log you can skip words in the list..

  • @sureshdurairaj9316
    @sureshdurairaj9316 23 дня назад

    Background music is annoying when using headphones. It’s distracting.

  • @jayrigger7508
    @jayrigger7508 16 дней назад +1

    You start off with an insult .. "leetCode is the bane of wannabe engineers". Not being into code puzzles is not a sign of engineering skill.

    • @CW-ln7zt
      @CW-ln7zt 8 дней назад +1

      Calling react devs “engineers” is a stretch. Engineering is all about solving problems and puzzles

  • @AdithyaRaj-dc9lv
    @AdithyaRaj-dc9lv 3 месяца назад

    Can ai solve these qns?

  • @mfgd-qo2yo
    @mfgd-qo2yo 3 месяца назад +1

    бибиксонаф .

  • @brockormond4131
    @brockormond4131 4 месяца назад

    13:10 So something that's been bugging me... is the things and the baby chocobos' butts their egg shell? But most look like plants, so are chocobos... plants? Flying/Grass type pokemon?

  • @Mubashir7933
    @Mubashir7933 3 месяца назад

    you didn't show the solution of dog problem and lot was not possible and you straight jump into your own solution

  • @paragggoyal1552
    @paragggoyal1552 3 месяца назад

    just solve more problems

  • @Alfakatt
    @Alfakatt 3 месяца назад

    I’ve made a pretty good living never solving a leetcode in my life or even ever logged into the site

  • @s2_ultimatetech655
    @s2_ultimatetech655 4 месяца назад +2

    Ae bhaiya ji job lag gyi hai????

    • @Codebagel
      @Codebagel  3 месяца назад +4

      Hanji mere paas job hain (hopefully that makes sense, still learning the language)

  • @domf21
    @domf21 4 месяца назад +4

    Is def the N word

  • @vectoralphaSec
    @vectoralphaSec 3 месяца назад +1

    Im not doing this shit.

  • @KushLemon
    @KushLemon 4 месяца назад +2

    Useless video.

  • @Everyday_smarter
    @Everyday_smarter Месяц назад

    nice solution

  • @go4amitshah
    @go4amitshah 4 месяца назад +1

    This is soooooooo good. Thank you so much for the video 🤌

    • @Codebagel
      @Codebagel  4 месяца назад

      I’m glad it helped!