Complete C++ STL in 1 Video | Time Complexity and Notes

[@takeUforward]

Check Coding Ninjas Out: bit.ly/3GMlV7Z

[@biswajitadhikary_0807]

i am a 2nd year cse student i want to follow your series but i am unable to decide from where i should start. i know c , now i am learing c++. please reply me

[@pavankumar-cz9hb]

@@biswajitadhikary_0807 start coding basic problems in c++

[@kumarisushma4797]

sde sheet not found???

[@prithammahato1915]

UNDERSTOOD_BHIYA :)

[@72nishantwadhawan5]

@@kumarisushma4797 🤣🤣

[@lalitkumarsharma2003]

Chapters: 00:01:02 Libraries 00:01:51 namespace std 00:02:40 Functions 00:05:08 STL 00:05:40 pair 00:10:04 vectors ( 1st container ) 00:15:25 accessing elements in vector 00:19:28 iterators 00:24:43 deletion in a vector 00:27:00 insertion in a vector 00:29:46 other functions in vector 00:30:26 list ( 2nd container ) 00:31:43 Deque ( 3rd container ) 00:32:02 Stack (LIFO) ( 4th container ) 00:34:16 Time Complexity of stack operations 00:34:27 Queue (FIFO) ( 5th container ) 00:35:58 Priority Queue ( 6th container ) 00:38:28 Time Complexity of push, pop & top 00:38:50 Set ( 7th container ) 00:42:58 Lower bound & Upper bound 00:43:40 Multiset ( 8th container ) 00:45:35 Unordered set ( 9th container ) 00:47:12 Map ( 10th container ) 00:53:22 Multimap ( 11th container ) 00:53:46 Unordered map ( 12th container ) 00:54:53 Algorithms - Sort 00:59:18 Comp (For sorting) 01:03:26 builtin_popcount( ) 01:04:18 next_permutation 01:06:21 max_element 01:06:40 min_element 01:07:09 SUBSCRIBE !!!

[@yagniktalaviya2146]

Thankyou man!

[@khushvantkumar1670]

thanks bhai✌

[@sujayshanbhag2055]

Thankyou so much!!

[@lalitkumarsharma2003]

@@yagniktalaviya2146 😄😄

[@lalitkumarsharma2003]

@@khushvantkumar1670

[@hardikchawhan6346]

I am a first year student in my first Sem, And i am glad that I have found This channel in my early stage of college life. I am going to stick to this Man till my first interview. and also even after that. Thanks for explaining every thing in detail and clearly. I don't see my college professor even near to this guy when it comes to explaining concepts.

[@rgamma7468]

You are very lucky, just keep seeing these videos and practicing!

[@THEReFleX]

dont study

[@sandeepkarne8407]

kismat wala he bhai tu me to final year me mila ye banda

[@cr00723]

hey man what are you learning right now?

[@hardikchawhan6346]

@@cr00723 Backend Development with Node and SpringBoot. Basically I am doing an internship so I need to know Spring Boot for that. Also Have a Patent in progress.

[@peacejoy5293]

Bhaiya, coming from a middle-class family with mediocre teachers, I have always thought I would never get placed due to the fact that I could not afford courses and the difficulty of problem-solving. All of us are blessed to have you as a savior. Thank you very much. I am part of the 2020-2024 batch, and my placements will begin in July. As a result of discovering your channel and starting to prepare, my hopes have been revived. You will make a huge difference in my life if I get a job and can provide for my family.

[@amanpaliwal3122]

which clg do you have study ??

[@aqs.a]

You will!! Good Luck :)

[@amanpaliwal3122]

@@aqs.a you also

[@arc420]

Bhay hua kya ?

[@nostalgiccringeallhailchel3881]

@@arc420 same question

[@abdurrahmanchauhan4780]

getting this much bulk of knowledge with proper examples in just 1 hr is jst incredible. Thankyou!

[@yashbhamare4772]

This is the most complete video on STL no cap , I had seen many STL videos before but this guy covered each and everything in detail and that too in so simple words and ways . Striver u are really the bestt!! Please continue this seriess waiting for your new videos everyday.

[@InvinciRD]

Are any important topics or use cases missing here? And where can u watch them?

[@souravpramanik3371]

I have been a software developer for the last 3 years I started preparing for DSA from your channel and I found out your content is one of the best content that is freely available on the internet 💯💯💯💯💯💯

[@dipbhowmik4583]

1 hour of a fully packed informationed STL video. Thanks Striver for the level of content you always provide.

[@GOPIKUMAR-vv2sy]

This is the most complete video on STL no cap , I had seen many STL videos before but this guy covered each and everything in detail and that too in so simple words and ways .

[@MayurVarma]

Great Video!! Just one correction at 31:19 the underlying data structure of the vector is not a singly linked list its a dynamic array

[@vigneshwarm]

This needs more upvotes. I've always thought vector is a linked list

[@princerajput6709]

@take U forward can u please explain???

[@AyushKumar-gf5th]

@@vigneshwarm really?

[@vigneshwarm]

@@AyushKumar-gf5th cut me some slack. Vector does seem to do things that linked list can. After you create a list, you are allowed to add or delete things. C++ can overload the [] operator, so i assumed when you do arr[i], it does traverse until i and get the data for you. But yeah, I'm at fault, considering how everyone interchangeably uses array and vector, i should have guessed vector is prob dynamic array and not linked list. (O(n) time for every time you do arr[i] is painful) My bad

[@ashish9948]

@@vigneshwarm So what's the correct answer ?

[@kshitizsaini4507]

ITs been a long time approx 4 years since I started my career in software development. Started again with dsa to upgrade my self. Thank you Striver.

[@spycake0019]

what is your salary

[@kshitizsaini4507]

@@spycake0019 Its better than average.

[@gilfoyle2211]

0:00 Basic Structure of C++ 5:05 STL components 5:36 Pair: Tuple in C++ 7:15 Nested Pair 9:05 Pair Array 10:04 Vectors 16:19 Iterator 30:25 List 31:44 Deque 32:04 Stack 34:29 Queue 36:00 Priority Queue 38:53 Set 43:53 Multiset 45:37 Unordered set 47:12 Map 53:22 Multimap 53:46 Unordered map 54:53 Algorithms 59:17 Comp (For custom sorting inside sort) 01:03:26 __builtin_popcount( ) 01:04:18 next_permutation 01:06:21 max_element 01:06:40 min_element

[@SameekshaCshetty]

Gaining such a substantial amount of knowledge with clear examples in just one hour is simply amazing. Thank you!

[@nitishkumarram8978]

It's been a great honor while studying on this platform. I have understood all these things. Very thankful for the teachings.

[@preethamreddy9610]

Understood. Today is November 19th, 2024 and i have just completed watching this video. I will come here periodically to update my status and my offers! Wish me luck!

[@gorantlakarthik6875]

Awesome !! Just awesome .. 1 hour video but so packed and curated it took me around 5 hrs to do(i took heavy notes) !!

[@akhilgupta4997]

can you share notes please

[@morhadi]

@@akhilgupta4997 +1

[@rgamma7468]

Yea, i am doing this since afternoon and its 11 at the night. I took long breaks in between though.

[@Asur.....]

Bro I'm facing 404 error while opening the notes uploaded by striver sir ,so can u send me notes

[@Narrator_]

bro can i get your notes

[@pendemanjali]

thankyou so much sir , i completely lost hope when i was coding , but with ur videos i am doing things from scratch again and ur content helps me greatly.

[@webhelpbyvarghab]

At 24:06 " for(auto it:v) ", don't get confused " it " with iterators. " It " is not an iterator, it represents each element of vector v. We could write it like " for(auto element:v) " and it would run perfectly.

[@prafullaraichurkar4369]

Thanks!!

[@hardikpahuja8381]

Thanks was thinking about that only.

[@Abhishek-vc5bp]

what's v represent here { for(auto element : v) }

[@webhelpbyvarghab]

@@Abhishek-vc5bp V is just a name for the vector(dynamic arrays in c++)

[@PrabalSingh2908]

Understand striver after learning stl from this video i am very much confident that if i complete this 350 video a2z course then i can crack any interview. Thanks from Gujarat Surat.

[@ADEEBARASHIDBAI]

This is the best youtube video I've come across. Productive one hour.

[@ritochitghosh1753]

Thanks, Striver. I just completed this STL and in the last section of algorithms, I found the solution to the problems I got struck into while solving 43 questions in Leetcode. Looking forward to complete this amazing playlist..

[@meghasaxena2195]

This was my first time learning STL, and bingo ! That was very easy, idk if someone else would have taught like this. Day 5 of Striver A2Z DSA Course Completed ✅

[@OfficialCreater15]

u r saying that u completed course in 5 days?????

[@moksh_plays5658]

@@OfficialCreater15 no he said that he completed his a2z course 5 days ago

[@dh3uv]

@@moksh_plays5658 (she)said 5 days are completed doing this course

[@krishnasinghal14]

@@moksh_plays5658 you both are wrong 😂, she said, her 5th day of learning dsa is completed.

[@vaishnavishukla4382]

this is my first time going through this channel and STL never seemed this easy. Thankyou

[@suravighosal9934]

Your teaching style is superb. 👌 I've been following your videos since a few weeks and I'm learning dsa on my own pace. Thanks a lot for all your videos. Keep helping juniors. Thanks a lot!

[@a31kushagra58]

I think there just be a small correction at 52:33 , Line No 489 , it should be "cout

[@Anurag-q7v]

just try "cout

[@vatsalkudecha2746]

Even though I've already seen that 45 minutes stl video on TUF and stl series on code-beyond, I'm still going to watch this one. ✌

[@amitrameshjaisinghaniofficial]

True same !!

[@bhrigumonibaruah251]

which one should I prefer as a beginner?

[@amitrameshjaisinghaniofficial]

@@bhrigumonibaruah251 this one but after then revise for around 3-4 days then it will in heart

[@bhrigumonibaruah251]

@@amitrameshjaisinghaniofficial thanks for your suggestion 🤞

[@yoshihirotogashi6898]

@@amitrameshjaisinghaniofficial but bro the other one on code beyond is of 5hr long is it in much depth explaination?

[@Build-Skill-30]

I am new to this channel and folloing the A2Z DSA course sheet and I am really liking the way of explanation and the quality of the content is also too good. Thank you for this brother. thank you.. Striver

[@kunalvijay7646]

This is literally the best video for learning C++ STL. Thanks Striver :)

[@sarthakchaturvedi3819]

Has everything that's required and yet explained in such a clear and structured manner! Amazing video sir 👍👍

[@v.keerthigakeerthi428]

I have more and more confidence to place a top most company , you are changing my life brighter thank you very much ❤❤❤❤❤👏👏👏

[@spycake0019]

are you placed now?

[@abhishekvishwakarma9045]

Already watched your previous STL video and this one is awesome 😌(cherry on the top of it :) Best part is how well you've explained comparator implementation👍

[@proteansan5141]

Thank You Striver ! Wanted to learn STL from a long time but couldn't complete due to the lengthiness of courses available. You gave us the precise idea of stuff that is actually necessary for regular use, Thank YOU !

[@Antisocialbutterflyhere]

If you reading this then i just want to let you know that you are awesome you are truly truly awesome 😎 , like totally fire it's not about getting placement or high paying it's about enjoying the journey of learning with you and it's truly amazing 🤩. Keep doing dude , you will achieve more 😃.

[@jyothikamalesh7586]

Heyy,Thats a good message to read Keep impacting the same... I like the good vibe going😁💫💫

[@Harshacodes]

Life changing for midddle class students who cannot afford high cost courses...even if they do afford ..here content quality is just Top notch!!! 💯💯

[@UnknownDude-e6t]

49:56 There is a syntax error in mpp.emplace({3,1}). Instead of that mpp.emplace(3,1); , you taught it previously in the video. Btw thanks for the most complete and amazing lecture on STL available on youtube Striver !!❤

[@opinox2975]

He is the best for leaning any language i was facing so many issues earlier but after watching this video i have no doubts about stl at all thank you so much striver

[@EdgeOfSoumik]

Today I just learnt the STL part of C++. Thanks Raj dada!! 💌

[@sajjadsaiyed9636]

he is so good at teaching🔥 , I was following some other youtuber but still I was not able to solve dsa problems but then my friend told about striver.. this guy helped me allot.. 💯 he is better than most of the other youtuber , keep posting such videos in future bro and thank you so much for this playlist😇

[@joelgeorge7038]

This is indeed a complete STL package. Thanks a lot❤

[@biswarupdas4263]

small correction at 57:08 .......sort(a,a+n,greater());

[@roshanzameer1998]

Greatest Stl video one could ever create. Each and every point is covered with great detailing

[@ankita_8825]

thanks a lot ..really helpful .this 1 hr course of stl was just the best stl video i came across till now 👏👏

[@sohamsarkar8774]

This is a great summarized STL video, really helpful for beginners as well as advanced folks (it's like a mini revision for y'all)

[@jacobblack2544]

Who asked?

[@rakshithravi16]

Counting number of bits and permutations in a string is so useful. Thank you so much Sir!!

[@shreyxnsh.14]

at 50:00 you dont have to put curly brackets for maps when using emplace function, only for insert function

[@bharathslip9]

Honestly this is the best video on STL, please keep up the good work. KUDOS.

[@shiv.shankar]

Bhaiya Just a small correction at 45:00 you wrote ms.find(1) + 2 in the end part of the erase() function. But this will give us an error because only array, vector, and string can store elements in contiguous memory locations, so we can't do +2 and access the element after the first occurrence of 1. Here is the corrected code for that part: auto it = ms.find(1); advance(it, 2); /* Now the iterator is one position ahead of where you want it to be. This is because in the erase() function it takes from the start till one element less than the end that we specified.*/ ms.erase(ms.find(1), it); // Now we have the iterator in the correct place so it will erase properly and we will be left with only one 1.

[@priyanshugupta5192]

thanks bro

[@roxy2925]

thanks bro

[@bihanbanerjee]

We can do ```ms.erase(ms.find(3), next(ms.find(3), 2));``` also.

[@shiv.shankar]

@@bihanbanerjee Ya next() and advance() are pretty similar.

[@shiv.shankar]

@@bihanbanerjee Thank you for showing alternate code

[@rishikeshg8926]

Short and crisp lecture on STL in C++. It helped me a lot.Thanks for this Video : )

[@itz_me_imraan02]

As u already covered a lot of videos on interview related preparation....i guess now you can upload some CP related stuff like number theory, combinatorics, etc etc... 🤗💕

[@imshivendra]

Do Product Based Comapany also ask CP ? I don't think so.

[@itz_me_imraan02]

@@imshivendra I heard few top product based companies prefer CP....

[@Sumanth_Siddareddy]

Thank you, Striver! for explaining the C++ STL in a clear-cut way. It helps me to learn C++ STL quickly.

[@parth7d2]

Thank you for explaining in such easy and concise way! 🙏

[@tsk04]

Soo grateful for such videos at free of cost ...

[@jaydeeeep]

Thank you Striver, you’re one of the best teachers I ever had.

[@asadalam584]

Thank you so much. Just completed STL before my interview.

[@pusendrachaudhary5480]

Hey Striver, I can solve most of the problems but could not calculate time complexity properly. And also there is no any time and space complexity-related videos in your channel. so can you please make a time and space complexity videos in depth just like recursion ::). Love from Nepal.

[@gunahawk6893]

Check uncode gate serious might help

[@SiddhantdaChaudhary]

You're a amazing person because you have a tremendous amount of energy in speaking and thankyou for being a rope for use to climb the mountain of DSA....🙌🙌

[@budhadityachatterjee6270]

Java Collections please !!

[@okok-bt2mp]

Finally learned stl. 7/7/24. Thanks a lot. One of the best teacher❤

[@harshit.jindal]

At 43:30, you mentioned that all operations on sets take O(log(N)), but on line 383 you've mentioned that erase operation takes O(1) if given an iterator

[@creepopsub2936]

special case hai i guess. btw at 23:10 vector::iterator it1= v.rbegin(); vector::iterator it2= v.rend(); working?? I GOT THIS ERROR. PLZ HELP BRO error: conversion from 'std::vector::reverse_iterator' {aka 'std::reverse_iterator'} to non-scalar type 'std::vector::iterator' requested pta nhi this doesnt rums😅😅

[@aarfeenanees9147]

​@@creepopsub2936 iterators are of different type. the rend() member function returns an iterator of type std::vector::reverse_iterator, which gives an error when you try to store in a variable it2 of type std::vector::iterator. Just simply write std::vector::reverse_iterator its2 = v.rend() instead an it will work. As iterators come in varieties (std::vector::cont_iterator to name one), It becomes tedious and an error-prone way to always explicitly define iterator type when declaring a variable. So I'd advice you to use auto keyword instead. It saves you from writing verbose iterator type-names and prevents errors from creeping into your code.

[@creepopsub2936]

@@aarfeenanees9147 Thank u so much bro! Literally i asked thousands of people about this and no one could teach me this. I didn't even get this on stack overflow etc. Thank u so much buddy! It really meant alot. Are You On LinkedIn??

[@creepopsub2936]

@@aarfeenanees9147 I would surely love to connect with you. Thank you so much yar.

[@aarfeenanees9147]

@@creepopsub2936 I'm not on LinkedIn yet, but will create an account once I start College.

[@Mahamudul_Hasan0]

Best STL playlist i have ever seen🥺.thanks bro

[@narendrarokkam5367]

Bhiaya pls make one video about collection framework video for java users

[@takeUforward]

Soon!

[@abhinandansingh1922]

@@takeUforward looking forward to it 🔥

[@THEAMITESHRANJAN]

best STL video ever existed on youtube !! . Thank you so much bhaiya.

[@PiyushMishra-tq6cl]

Hey I am new to this channel so I started exploring but I think the playlist is not arranged well so I've a few doubts has he covered everything in c++ like pointers structure etc or do I need to cover basic c++ before to continue with this playlist?

[@Vipul_775]

First learn the basics of c++ then start from striver A2Z dsa sheet not directly youtube videos but start sheet questions of striver 455 questions bcz they all are arranged in well mannered [ east to hard]😊

[@PiyushMishra-tq6cl]

​@@Vipul_775 Thanks bro but from where should I cover basic c++?

[@Vipul_775]

@@PiyushMishra-tq6cl if u can buy paid udemy course of 500rs. Then u can buy abdul bari c++ course which is very good course on c++ and if u want free course then follow code with harry playlist

[@Vipul_775]

@@PiyushMishra-tq6cl code with harry

[@PiyushMishra-tq6cl]

Hey I saw his azsheet but In the heap learning section there was no video

[@singaram1176]

Great i learnt the STL way better from your video Striver thanks for the video and good luck !

[@Everdonebruhhhhhhhhhhhhhhhhhh]

44:07 the fact he's enjoying by teaching us , ThankYou STRIVER💗

[@HassanRaza-vm3xs]

00:11:00 can't we resize array like this int size; cin>>size; int array[size];

[@GOJOANDSUKUNAFAN]

Yes you can

[@pushprajsingh6891]

but its not recommended to do so ...i dont remember the exact reason by now

[@GOJOANDSUKUNAFAN]

@@pushprajsingh6891 the reason is basic we don't use it cause it's a bad thing bt no in soon videos of Striver he is literally doing this so it dosent really matter

[@codinghero2001]

Thank you !!! Nice explanation in detail.

[@aj-lan284]

you are an inspiration striver and a good human being.

[@JohnWick-fq1jb]

Mind blowing, participating contests uptill now with basic knowledge, creating functions for already built stl libraries💀, thanks, i hope I'll improve now.👍

[@thisguyispeculiar]

Best video on STL I have ever found. Thanks a lot. 🙏🏼

[@Jyot437]

The way he explains everything is very good.thanks bro for this. This is very helpful for us.

[@sfmuhit]

Thanks Striver i was struggling with STL but This video really helped me a lot.😍

[@ramkumartr1501]

A great introductory part for all the beginners. Feeling grateful to have you striver

[@edisane8763]

Some corrections: sort(a,a+n,greater()); //sorts in descending order sort(begin(a),end(a),comp);

[@PriyaGupta-sg4sm]

Best STL video on youtube !

[@armeshasharma2334]

thank u so much striver, the best ever explanation i could get all at 1 spot and 1 shot! u really made me believe tht i shldnt give up on DSA as i just didnt find the right person to study from, i know its a little late for me to go through this video just before the day of my interview to revise, but its never to late i hope

[@niraj_0624]

this was mine first time watching stl in c++ . and i get almost all concept except few. and i say it's okay to not get 100% happy for myself :)

[@learnbasicswithc-programmi7140]

Really The best Explanation for STL , that too in a shorter period. It Boosts Confidence among students who wants to start DSA in C++ language. Thank You Sir.

[@chakriramisetti5554]

best teacher on youtube I have seen ever

[@shakthiviviyn]

Really good crash course for C++ STL library. Can quickly learn all the available data structures and get Leetcoding.

[@Program_20]

It's me in January 2024. June or July will be my placement so i started to following ur vedios and road maps. I really having that I will be placed in one of the top company. Thank striver for making us to confident.

[@theoffshoregaming]

2024* Us bro us

[@Program_20]

👍

[@hanishbritto6181]

I really liked your way of explanation👍

[@deepakjain4481]

i was suffering from writing big codes your tutorial made me help

[@SAMARTHPAWAN]

very short concise and beautifully explained for intermediates and beginners!

[@VenkataRatna-2473]

Very clear explanation! Thank you! Really the best resource for those who wants to start learning the STL in C++.

[@neeltiwari7364]

"The teaching methodology explains the expertise acquired by the instructor, making it the best one-stop solution for learning DSA

[@shikhar2203]

The best C++ STL video on KZbin.❤❤

[@RealityCheck6969]

One of the rare indian youtuber that is not annoying to listen to. Good video man.

[@PrithaMajumder]

Raj, Thanks a lot for This Amazing Video about C++ STL Lecture - 6 Completed ✅

[@PeterParker-ee6ep]

i just felt excited by seeing this particular video, i have completed dsa in c from my college and i used the regular sorting methods but with this stl functions ,I felt so happy😉🙂

[@SYCOA12CHAITANYAASOLE]

What a video sir !! Really hats off to your hardwork. The way you teach is simply amazing. Keep going, keep growing.

[@PrithaMajumder]

Raj, Thanks a lot for This Amazing Lecture about C++ STL Lecture - 6 Completed ✅

[@tejassathe6128]

Excellent tour arrangement of the STL in a single video

[@akashgangabusinessandfinan4222]

Mindblowing lecture on stl and compact video lecture on stl.

[@TechnicalDrMusic]

if someone is landed at this video, please please don't skip, after many try almost DSA, I feel why should learn this series and how important for us, straightforward-> LIFE_TIME, thank you so much strive sir, you are a genius in the world DSA even for indian yes?😉

[@akellasvsmsubrahmanyam7124]

@striver your Teaching skills were extremely impressive and engaging it was so helpful for all the programming lovers and thanks for providing all the content free

[@aryanpatelyt7562]

Sir aap ne to from scratch sab kuchh padhaya STL ke baare me 🥺🥺 Thank you very much 🙏🙏 Channel subscribed !! ❤❤ Now I can start my competitive programming 😎

[@pur9941]

good stuff!! I finally understood most of the containers and their functions. THANK YOU SO MUCH STRIVER!!!!

[@srishtiyadav3602]

Speechless...Very expressive and understandable

[@amitsamarth1463]

Proud Of You Brother Of what U have achieved So Far!