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

Рет қаралды 230,365

Codebagel

Күн бұрын

Пікірлер: 134

@Codebagel 4 ай бұрын

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

@Everyday_smarter Ай бұрын

thanks

@alex0917lfo 4 ай бұрын

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 4 ай бұрын

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 4 ай бұрын

@@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 4 ай бұрын

@@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 3 ай бұрын

Same question as above

@bavnitsingh23 3 ай бұрын

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 4 ай бұрын

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

@CommDao 4 ай бұрын

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

@Codebagel 4 ай бұрын

Sort is OP

@Website_TV_1 3 күн бұрын

Wow, this video is a game-changer! I’ve been struggling with LeetCode problems for a while, but the step-by-step approach you provided made everything so much clearer. The explanation of how to break down the problem and tackle it methodically is exactly what I needed. Thank you for simplifying a process that can feel overwhelming! 🙌

@GuRuGeorge03 2 күн бұрын

I once got the tip to write down a few cases by hand and then let my brain first do the work, if it can come up with the expected output. if yes, then it means my brain does know an actual algorithm that works, we just need to make it conscious. So first we try to follow what our brain did in simple english, after that we break down the simple english into atomic steps that can be written as code. Once you've done that, you almost always have the optimal algorithm, since our brains are actually genius at this stuff. It's only really hard when you can't even explain an algorithm in simple english that will produce the correct output, then it's truly about finding and solving a base case first and working your way up to more compllicated cases.

@lisaw7074 2 ай бұрын

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 4 ай бұрын

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 4 ай бұрын

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

@Randomshorts-r7u 16 күн бұрын

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

@redfinance3403 3 ай бұрын

That flowchart is genius!

@adesai1000 3 ай бұрын

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

@RohaanKhalid-pz9iu 4 ай бұрын

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

@Codebagel 4 ай бұрын

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.

@yunagarnetsan 2 ай бұрын

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 Ай бұрын

Leetcode at highschool??, damn!!!

@yunagarnetsan Ай бұрын

@@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 Ай бұрын

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

@hectortelloc 24 күн бұрын

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

@Websitedr 2 ай бұрын

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

@electrode8773 4 ай бұрын

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

@Codebagel 4 ай бұрын

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 2 ай бұрын

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 3 ай бұрын

Perfect practice makes perfect indeed.

@Amuzeraa 4 ай бұрын

Thank you so much this really helps 😊

@Codebagel 4 ай бұрын

Thanks for watching!

@0986rashmi 3 ай бұрын

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

@akshaychavan5511 4 ай бұрын

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

@Codebagel 4 ай бұрын

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

@Mubashir7933 3 ай бұрын

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

@Julio-re8em 5 күн бұрын

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

@Sulerhy 3 ай бұрын

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

@takeuchi5760 3 ай бұрын

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 2 ай бұрын

That's a stretch but video itself is good.

@electric-lemonade 10 күн бұрын

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

@ttt69420 2 ай бұрын

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.

@kav04 Ай бұрын

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

@Joseph-uz2ry 4 ай бұрын

God bless you. This is so clutch

@Codebagel 4 ай бұрын

Thank you!

@bbmeireles 3 ай бұрын

Nice tips. Very thanks.

@aniver987 3 ай бұрын

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

@nintendopro0391 4 ай бұрын

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

@dss963 4 ай бұрын

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.

@prynkr 3 ай бұрын

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

@dss963 3 ай бұрын

@@prynkr 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 3 ай бұрын

@@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.

@unlucky-777 10 күн бұрын

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

@Richa_cute 3 ай бұрын

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.

@aninditabatra3810 4 ай бұрын

love this video!

@Codebagel 4 ай бұрын

Thank you!

@shivamsiddharthasinghrajaw7671 3 ай бұрын

these things come naturally when you've practiced enough

@servantofthelord8147 3 ай бұрын

Like learning to ride a bike

@harshdiwan9283 4 ай бұрын

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 4 ай бұрын

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

@harshdiwan9283 4 ай бұрын

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

@BlessingAwodeyi 4 ай бұрын

I'm facing the same problem

@neetaspirant901 4 ай бұрын

Solve recursion problems

@haniissa1990 4 ай бұрын

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

@sproutboot Ай бұрын

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

@FaberLSH 2 ай бұрын

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.

@moveonvillain1080 4 ай бұрын

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

@doitwithghausiya2870 3 ай бұрын

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

@DSASolutions 18 күн бұрын

Useful ❤

@Salah-YT 4 ай бұрын

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 4 ай бұрын

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.

@fantasm0- 24 күн бұрын

Fine. I'll subscribe.

@amusicated Ай бұрын

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

@tuntumwakalasya5270 4 ай бұрын

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

@osc8468 Ай бұрын

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

@s8x. 4 ай бұрын

wait i need this flowchart

@Codebagel 4 ай бұрын

Check the pinned comment - it’s completely free!

@oooooooooOoOoOo571 8 күн бұрын

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

@AlienAndrew51 3 ай бұрын

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

@taradean. 4 ай бұрын

thanks!

@yohahnribeiro6029 4 ай бұрын

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 4 ай бұрын

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 4 ай бұрын

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 4 ай бұрын

@@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 😁

@ItWasEnder 3 ай бұрын

Filthy Frank reference, the goat

@powerHungryMOSFET 3 ай бұрын

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 3 ай бұрын

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 3 ай бұрын

dude, what happend? :D

@1234victorxD 3 ай бұрын

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

@1234victorxD 3 ай бұрын

@@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 27 күн бұрын

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

@suryapratapsingh5046 2 ай бұрын

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

@hossain9410 3 ай бұрын

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

@adyan4010 3 ай бұрын

Not mandatory but will be a plus point in your resume

@haniissa1990 4 ай бұрын

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

@BlackwaterEl1te 3 ай бұрын

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

@AdithyaRaj-dc9lv 4 ай бұрын

Can ai solve these qns?

@sureshdurairaj9316 29 күн бұрын

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

@SezayirDagtekin-l3v Ай бұрын

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

@mfgd-qo2yo 3 ай бұрын

бибиксонаф .

@brockormond4131 4 ай бұрын

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?