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

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  • เผยแพร่เมื่อ 21 ก.ย. 2024

ความคิดเห็น • 129

  • @Codebagel
    @Codebagel  4 หลายเดือนก่อน +25

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

  • @alex0917lfo
    @alex0917lfo 3 หลายเดือนก่อน +606

    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 หลายเดือนก่อน +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 หลายเดือนก่อน

      @@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 หลายเดือนก่อน

      ​​@@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 หลายเดือนก่อน +8

      Same question as above

    • @bavnitsingh23
      @bavnitsingh23 3 หลายเดือนก่อน +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 หลายเดือนก่อน +146

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

  • @CommDao
    @CommDao 4 หลายเดือนก่อน +151

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

    • @Codebagel
      @Codebagel  4 หลายเดือนก่อน +17

      Sort is OP

  • @lisaw7074
    @lisaw7074 หลายเดือนก่อน +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 หลายเดือนก่อน +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 หลายเดือนก่อน +2

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

    • @Randomshorts-r7u
      @Randomshorts-r7u 11 วันที่ผ่านมา

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

  • @adesai1000
    @adesai1000 2 หลายเดือนก่อน +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 หลายเดือนก่อน +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 หลายเดือนก่อน +3

      Leetcode at highschool??, damn!!!

    • @yunagarnetsan
      @yunagarnetsan หลายเดือนก่อน +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 หลายเดือนก่อน

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

    • @hectortelloc
      @hectortelloc 18 วันที่ผ่านมา

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

  • @RohaanKhalid-pz9iu
    @RohaanKhalid-pz9iu 4 หลายเดือนก่อน +29

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

    • @Codebagel
      @Codebagel  4 หลายเดือนก่อน +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 หลายเดือนก่อน +25

    That flowchart is genius!

  • @Websitedr
    @Websitedr 2 หลายเดือนก่อน +3

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

  • @homerlol9058
    @homerlol9058 4 หลายเดือนก่อน +6

    That flowchart seems extremely useful

    • @Codebagel
      @Codebagel  4 หลายเดือนก่อน +2

      The flow chart is amazing 👌

  • @electrode8773
    @electrode8773 3 หลายเดือนก่อน +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 หลายเดือนก่อน +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 หลายเดือนก่อน +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 หลายเดือนก่อน +2

    Perfect practice makes perfect indeed.

  • @Julio-re8em
    @Julio-re8em 6 ชั่วโมงที่ผ่านมา

    idk this video kind of confused me a bit but thank you nonetheless for your guidance

  • @abhinavprabhakar455
    @abhinavprabhakar455 3 หลายเดือนก่อน +3

    Awesome! This video was very helpful. ❤

  • @Amuzeraa
    @Amuzeraa 4 หลายเดือนก่อน +5

    Thank you so much this really helps 😊

    • @Codebagel
      @Codebagel  4 หลายเดือนก่อน

      Thanks for watching!

  • @0986rashmi
    @0986rashmi 3 หลายเดือนก่อน +2

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

  • @ttt69420
    @ttt69420 2 หลายเดือนก่อน +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 หลายเดือนก่อน +28

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

    • @takeuchi5760
      @takeuchi5760 3 หลายเดือนก่อน +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 หลายเดือนก่อน

      That's a stretch but video itself is good.

    • @electric-lemonade
      @electric-lemonade 5 วันที่ผ่านมา +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 หลายเดือนก่อน +3

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

  • @akshaychavan5511
    @akshaychavan5511 4 หลายเดือนก่อน +6

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

    • @Codebagel
      @Codebagel  3 หลายเดือนก่อน +1

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

  • @Salah-YT
    @Salah-YT 3 หลายเดือนก่อน +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 หลายเดือนก่อน +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 วันที่ผ่านมา

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

  • @kav04
    @kav04 27 วันที่ผ่านมา

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

  • @Joseph-uz2ry
    @Joseph-uz2ry 4 หลายเดือนก่อน +2

    God bless you. This is so clutch

    • @Codebagel
      @Codebagel  4 หลายเดือนก่อน

      Thank you!

  • @bbmeireles
    @bbmeireles 3 หลายเดือนก่อน +1

    Nice tips. Very thanks.

  • @Richa_cute
    @Richa_cute 3 หลายเดือนก่อน +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 หลายเดือนก่อน +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 หลายเดือนก่อน

      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 หลายเดือนก่อน

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

    • @BlessingAwodeyi
      @BlessingAwodeyi 3 หลายเดือนก่อน

      I'm facing the same problem

    • @neetaspirant901
      @neetaspirant901 3 หลายเดือนก่อน

      Solve recursion problems

  • @aniver987
    @aniver987 3 หลายเดือนก่อน +1

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

  • @FaberLSH
    @FaberLSH 2 หลายเดือนก่อน

    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 หลายเดือนก่อน +1

    love this video!

    • @Codebagel
      @Codebagel  4 หลายเดือนก่อน

      Thank you!

  • @nintendopro0391
    @nintendopro0391 4 หลายเดือนก่อน +36

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

    • @dss963
      @dss963 4 หลายเดือนก่อน +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 หลายเดือนก่อน +5

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

    • @dss963
      @dss963 3 หลายเดือนก่อน

      @@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 หลายเดือนก่อน +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 หลายเดือนก่อน

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

  • @oooooooooOoOoOo571
    @oooooooooOoOoOo571 2 วันที่ผ่านมา

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

  • @DSASolutions
    @DSASolutions 12 วันที่ผ่านมา

    Useful ❤

  • @moveonvillain1080
    @moveonvillain1080 4 หลายเดือนก่อน +3

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

  • @shivamsiddharthasinghrajaw7671
    @shivamsiddharthasinghrajaw7671 3 หลายเดือนก่อน +5

    these things come naturally when you've practiced enough

  • @yohahnribeiro6029
    @yohahnribeiro6029 3 หลายเดือนก่อน +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 หลายเดือนก่อน +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 หลายเดือนก่อน

      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 หลายเดือนก่อน +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 หลายเดือนก่อน

    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

  • @AlienAndrew51
    @AlienAndrew51 3 หลายเดือนก่อน +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.

  • @amusicated
    @amusicated หลายเดือนก่อน

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

  • @doitwithghausiya2870
    @doitwithghausiya2870 3 หลายเดือนก่อน

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

  • @fantasm0-
    @fantasm0- 18 วันที่ผ่านมา

    Fine. I'll subscribe.

  • @osc8468
    @osc8468 หลายเดือนก่อน

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

  • @sproutboot
    @sproutboot หลายเดือนก่อน +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 หลายเดือนก่อน

    thanks!

  • @powerHungryMOSFET
    @powerHungryMOSFET 3 หลายเดือนก่อน +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 หลายเดือนก่อน

    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 หลายเดือนก่อน

      dude, what happend? :D

    • @1234victorxD
      @1234victorxD 3 หลายเดือนก่อน

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

    • @1234victorxD
      @1234victorxD 3 หลายเดือนก่อน

      @@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 วันที่ผ่านมา

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

  • @s8x.
    @s8x. 3 หลายเดือนก่อน +1

    wait i need this flowchart

    • @Codebagel
      @Codebagel  3 หลายเดือนก่อน

      Check the pinned comment - it’s completely free!

  • @suryapratapsingh5046
    @suryapratapsingh5046 2 หลายเดือนก่อน +1

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

  • @ItWasEnder
    @ItWasEnder 3 หลายเดือนก่อน +1

    Filthy Frank reference, the goat

  • @hossain9410
    @hossain9410 3 หลายเดือนก่อน

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

    • @adyan4010
      @adyan4010 3 หลายเดือนก่อน

      Not mandatory but will be a plus point in your resume

  • @SezayirDagtekin-l3v
    @SezayirDagtekin-l3v หลายเดือนก่อน

    )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 หลายเดือนก่อน

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

    • @BlackwaterEl1te
      @BlackwaterEl1te 3 หลายเดือนก่อน

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

  • @sureshdurairaj9316
    @sureshdurairaj9316 23 วันที่ผ่านมา

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

  • @jayrigger7508
    @jayrigger7508 16 วันที่ผ่านมา +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 วันที่ผ่านมา +1

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

  • @AdithyaRaj-dc9lv
    @AdithyaRaj-dc9lv 3 หลายเดือนก่อน

    Can ai solve these qns?

  • @mfgd-qo2yo
    @mfgd-qo2yo 3 หลายเดือนก่อน +1

    бибиксонаф .

  • @brockormond4131
    @brockormond4131 4 หลายเดือนก่อน

    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 หลายเดือนก่อน

    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 หลายเดือนก่อน

    just solve more problems

  • @Alfakatt
    @Alfakatt 3 หลายเดือนก่อน

    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 หลายเดือนก่อน +2

    Ae bhaiya ji job lag gyi hai????

    • @Codebagel
      @Codebagel  3 หลายเดือนก่อน +4

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

  • @domf21
    @domf21 4 หลายเดือนก่อน +4

    Is def the N word

  • @vectoralphaSec
    @vectoralphaSec 3 หลายเดือนก่อน +1

    Im not doing this shit.

  • @KushLemon
    @KushLemon 4 หลายเดือนก่อน +2

    Useless video.

  • @Everyday_smarter
    @Everyday_smarter หลายเดือนก่อน

    nice solution

  • @go4amitshah
    @go4amitshah 4 หลายเดือนก่อน +1

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

    • @Codebagel
      @Codebagel  4 หลายเดือนก่อน

      I’m glad it helped!