STACK IMPLEMENTATION | Push, Pop, Display | Class 12 Python | Computer Science for Board

[@grin2groin._.624]

Namaste Harsh sir. Mein abhi abhi scl se half yearly exams deke aa rha hu. Aapke python ke videos mein last 3 days se follow kar rha hu aur sir aaj sahi mein exam hall mein paper deke khushi hua. Thank you sir. Aapke lectures bahut helpful hai. Kam time mein best way hai ye series python sikhne ke liye.

[@devyanshgupta2901]

best of luck everyone jiska bhi subah exam hai

[@letsamaze7072]

Are you ready ?

[@ekanshdeep4408]

@@letsamaze7072 nha bro

[@devanshsingh4264]

No bro

[@Ayushpatell88]

All the best for your 29 March 2025 exam❤

[@thinker10]

That day it's my birthday 😅

[@PARTH-g2o]

​@@thinker10ohh nice😅

[@sagargamerofficial465]

Thank you

[@epiccube8594]

All the best to all for today's exam

[@gamerzzhub5964]

kis kis ka exam kl hai???

[@24rage]

Bhai dimg sahi hai ?sabka kal he hoga

[@atozgaming7536]

lol mera bhi hai kl, good luck aapko bhi 👍

[@PeachePeache-o7w]

Samjh ni aara kuch🤧🤧

[@sim4373]

​@@24ragerude

[@jitinkumar124]

Aaj h😅

[@TofuMilkbread]

CODE: s=[] top=None def isEmpty(stk): if stk==[]: return True else: return False def push(stk,item): s.append(item) top=len(stk)-1 def spop(stk): if(isEmpty(stk)): return('UnderFlow!') else: i = stk.pop() if(len(stk) ==0): top=None else: top=top-1 return i def peek(stk): if isEmpty(stk): return('underflow') else: top=len(stk)-1 return(stk[top]) def display(stk): if(isEmpty(stk)): print('Stack is empty!') else: top=len(stk)-1 print(stk[top],'

[@garv3355]

king

[@shreeyashmishra2120]

king

[@mrxerg9845]

king

[@Abhinav-gu2ui]

King ?

[@garv3355]

@@Abhinav-gu2ui king

[@nishantpanda848]

11:25 the most epic part🤣🤣🤣

[@pawanijoshi2869]

😂 Seriously...

[@funwithkrish009]

All the best for you 2 april 2024 Exam ❤

[@nathenmathew5667]

pls post notes for this video notes are the best parts of the series

[@ignaitog]

Abbe Yeh code h Iske koi notes thodi hain lmao

[@horde479]

i tried writing the code :D s = [] top = None def isEmpty(stk): if stk==[]: return True else: return False def push(stk,item): stk.append(item) def pop(stk): if(isEmpty(stk)): return('UnderFlow') else: i = stk.pop() return i def peek(stk): if isEmpty(stk): return('underflow') else: return(stk[len(stk)-1]) def display(stk): if(isEmpty(stk)): print('Stack is empty!') else: top=len(stk)-1 print(stk[top],'

[@divyanshujod]

Best in the world "Aman dhattarwal" zabardast.

[@RudyTanwar]

Best teacher ever❤

[@puneetpradhan7657]

Thanks a lot :))) Love to the apni kaksha team

[@manasgupta7724]

5:15 sir but agar hame shrif peek karna hai to ham direct -1 index bhi to print kara sakate hai wo bhi to top he hai

[@vivaanreddy8771]

stack = [] def push(stk, item): stk.append(item) def pop(stk): if not stk: return 'Underflow!' return stk.pop() def peek(stk): if not stk: return 'Underflow!' return stk[-1] def display(stk): if not stk: print('Stack is empty!') else: print('Top of the stack: ', stk[-1]) print('Stack elements:') for item in reversed(stk): print(item) while True: choice = input('''STACK IMPLEMENTATION 1. PUSH 2. POP 3. PEEK 4. DISPLAY 5. EXIT Enter your choice (1-5): ''') if choice == '1': item = int(input("Enter the item you want to push: ")) push(stack, item) print(item,' added successfully') elif choice == '2': item = pop(stack) if item == 'Underflow!': print('Stack is empty') else: print(item,' popped from the stack') elif choice == '3': item = peek(stack) if item == 'Underflow!': print('Stack is empty') else: print('%d is at the top of the stack' % item) elif choice == '4': display(stack) elif choice == '5': break else: print('Invalid input') print(' ')

[@Kidzone1289]

Aman bhaiya zindabad....🙏🙏🙏

[@college1494]

NOTES UPLOAD KAR DO BHAIYA!!!!! PRACTICALS AND PRE BOARDS H

[@eugenemartin7475]

itna bhagaate kyu ho yaar saare videos me

[@yashsharma3280]

ya

[@subasit122]

Nahi bhagane par phir tum log 2x pe dekhto ho isiliye

[@amanguptan]

​@@subasit122Tu dekhta hoga 2x pe hmlog nhi jo chiz pehle padh liye hai usko 2x me dekha jata hai per ye aaj padh reha hai or ye channel khud 2x me video bhaga reha hai

[@chamanpreetverma1869]

4 saal purani hai video 😑​@@amanguptan

[@gauravkaushik9384]

def Push(stk,item): stk.append(item) print("Item is added successfully to the stack") def Pop(stk): if stk==[]: print("Stack is already Empty") else: stk.pop() def Display(stk): a=stk[::-1] print(a) stk=[] while True: print("1.Push 2.Pop 3.Display") ch=int(input("Enter Your Choice:::")) if ch==1: no.=int(input("Enter no. to be added:::")) Push(stk,no.) if ch==2: Pop(stk) if ch==3: Display(stk)

[@Rbrnrntbetntybet]

Thodan jyada he 'if' use kar diya . All the best for cs exam.

[@MadMax-fs3cy]

@@Rbrnrntbetntybet elif hoga right?

[@mrsprite399]

@@MadMax-fs3cy Haa If ch==1 ke baad elif= 2, 3,4...etc hoga

[@GamingBeastR4W]

@@MadMax-fs3cy else bhi hoga last me if -elif - else

[@Shubham-oo8vv]

Item is not defined

[@BilashiniOram-fo1hm]

12:30 most epic

[@viee488]

THE CORRECT CODE s=[] top=None def isEmpty(stk): if stk==[]: return True else: return False def push(stk,item): s.append(item) top=len(stk)-1 def spop(stk): if(isEmpty(stk)): return('underflow') else: i = stk.pop() return i if(len(stk) ==0): top=None else: top=top-1 def peek(stk): if isEmpty(stk): return('underflow') else: top=len(stk)-1 return(stk[top]) def display(stk): if(isEmpty(stk)): print('Stack is empty!') else: top=len(stk)-1 print(stk[top],'

[@adityabhandari6145]

What does %d and %item mean?

[@viee488]

@@adityabhandari6145 check out 8:45 you will get it

[@obssgurl-yk5qg]

@@viee488 yes but what does it mean?

[@aditya__exe]

11:23 🤣🤣🤣🤣

[@sathibanerjee3660]

Teacher : You don't attend my class; still you're scoring 90+ in every CS paper; what's the secret? Me : Sir, have you heard of Harsh Sharma of Apni Kaksha? Teacher : 😑😑

[@harshsharma4197]

Lol

[@itsmechris3791]

@@harshsharma4197 😂

[@riachuphal3233]

Me : writing andhe 1.... 5dalna tha in my pre board if I've to write menu driven program for stack My marks : Rip💔🙂

[@DevSharma-ez1gx]

Andhe galat ch padh liya term 1 me nhi tha 😂

[@thattechieguy]

@@parveenparveen4565 most probably case based question or a sample code edit problems

[@ArryanhMesson]

Why we are writing top = len(stk)-1 why not top = len(stk) only

[@mihirsamanyut219]

basically top gives us the index of the most recent element in stack and the indexing in list starts from 0 onwards, so top= len(stk)-1. Eg: L=[a,b,c,d] the len(L)=4 but index of d is 3. Hope this helps!

[@brrrrrrrrrr9313]

are ch==5 k niche break dene se kay kisika error dikah raha h?? error- break outside the loop

[@no1shorts_]

One day before exam. Willl. Like 😂 👍

[@yadav_ji_788_]

Thnx sir😊😊

[@techwithdeepesh5367]

सी please लॉन्च cs series for tomorrow board paper

[@adityaa.28]

Thankyou bhaiya!!☺️☺️☺️

[@angadprajapati2854]

Bro your code means stack implementation program contains under 77 line program Even I have a also program under 25 to 40 lines like stack implementation and my program was too easy and understandable!!!

[@Patelnchora69]

Hey dude can u send ur Program here.

[@angadprajapati2854]

@@Patelnchora69 I am outside from home!!

[@Patelnchora69]

@@angadprajapati2854 oh.

[@GamingwithVansh1]

Bro have u reached home?​@@angadprajapati2854

[@atozintelligence4792]

Thank you so much Aman Bhaiya and Team 🙏🏻

[@debanjanmajumdar5383]

Eat well, Sleep well and study well...🙂

[@meghasaxena8264]

how can this code be used for string value

[@manaspandey7243]

Hatts of to harsh bhaiya,aman bhaiya and all bhaiyas and Didi's😊😊😊 for making a pure and awesome content. You would always be remembered. Respect man!!!! Respect$$$😌

[@Param3021]

Sir notes ka link daal do

[@HarshKumar-sh3hm]

Description mai code Kaha hain

[@mml119]

Sir Syllabus kab complete hoga??

[@kushanchaudhary7867]

This is the right code if you are having problem with pop :) --------------------------Code------------------------------------- s=[] top=None def isEmpty(stk): if stk==[]: return True else: return False def push(stk,item): s.append(item) top=len(stk)-1 def spop(stk): if(isEmpty(stk)): return('UnderFlow!') else: i = stk.pop() if(len(stk) ==0): top=None else: top=-1 return i def peek(stk): if isEmpty(stk): return('underflow') else: top=len(stk)-1 return(stk[top]) def display(stk): if(isEmpty(stk)): print('Stack is empty!') else: top=len(stk)-1 print(stk[top],'

[@keer-3]

Thanks bro!

[@samarthnegi1209]

@@keer-3 iss saal stack implimentation tk he ayega na? application of stack cut ho gya? kya

[@thechosenone2004B]

me sochra tha sab to sahi kr rha hu galat kaise aa rha h, def spop try kr k dekhta hu

[@Heritageunfolded]

Thnsksss

[@devikaharlalka5468]

Sir pls phy ka second books ka notes dedijiye mra preboards hai

[@gouravsinghchauhan136]

What 'bout my notes?🙈

[@gouravsinghchauhan136]

Take it easy 😂👍

[@Rose-5re]

Sir pehle h jinka video slow krk dekhna pad rha h

[@MamtaSharma-ji8qb]

bhaiya huge huge huge request to u pls upload aldehyde ,ketones notes 🙏🙏🙏🙏🙏🙏🙏🙏

[@callisto1836]

thank you for such great lecture harsh sir you teach really well

[@harshsharma4197]

Thanks

[@kitoo2624]

what is the use of %d here?

[@thattechieguy]

just a future reference operator ..

[@rajkumarchoudary4819]

Sir, IP walo ka lia plz... Pythan or my SQL ka corse dalo plz... 🙏🙏🙏🙏🙏 I who also want...

[@shreeyashmishra2120]

can someone tell what's the text editor or software he's using?

[@shreeyansh-x5l]

Vs text editor

[@shreeyashmishra2120]

@@shreeyansh-x5l thanks man

[@s2jee821]

14:09 wahi to nhi hai 😐🙃

[@BabyBoo004]

Ye konse applicatⁿ pe code likha or run kraya??

[@winterfrost2467]

10 bjne wale hain aur mein pop top par rha... 🫠

[@nikhilbaisla8693]

Bhai top ki value len-1 kaise h?

[@thattechieguy]

top kyuki top element alag se treat kiya gaya hai ussko special mention kiya hai

[@inshazaidi3986]

Thank u sooo muchh bhaiyaaa Stay blessed

[@Shanghai_Shine]

Bhaiya Konsa version use karte ho python ka

[@void8668]

Can anyone explain to me what this %d and %item is for?

[@MukeshNegi-qg4uo]

Isme Jo item ki value h vo %d ki jagah aa jayegi jab ham value dalenge output me

[@MukeshNegi-qg4uo]

Like tumne item ki value 5 dali to last me print hoga 5 added successfully

[@arpita6479]

Bhaiya code kaha hai description box me

[@ehtishama3066]

code nhi mil rha hai, aur muje error aa rha hai

[@arpita6479]

@@ehtishama3066 main de du kya code?

[@ehtishama3066]

@@arpita6479 yes bro, please share link

[@remadas0]

link to the notes not given

[@abhiii_navvv]

Bhaiya aapki Alternating current wali video ka 1st lecture chal Nhi rha h Baaki sare Chl rhe h Unacadmey app pr kuch Kro bhaiya plz plz..

[@vivaanreddy8771]

heres a simpler and far better code, stack = [] def push(stk, item): stk.append(item) def pop(stk): if not stk: return 'Underflow!' return stk.pop() def peek(stk): if not stk: return 'Underflow!' return stk[-1] def display(stk): if not stk: print('Stack is empty!') else: print('Top of the stack: ', stk[-1]) print('Stack elements:') for item in reversed(stk): print(item) while True: choice = input('''STACK IMPLEMENTATION 1. PUSH 2. POP 3. PEEK 4. DISPLAY 5. EXIT Enter your choice (1-5): ''') if choice == '1': item = int(input("Enter the item you want to push: ")) push(stack, item) print(item,' added successfully') elif choice == '2': item = pop(stack) if item == 'Underflow!': print('Stack is empty') else: print(item,' popped from the stack') elif choice == '3': item = peek(stack) if item == 'Underflow!': print('Stack is empty') else: print('%d is at the top of the stack' % item) elif choice == '4': display(stack) elif choice == '5': break else: print('Invalid input') print(' ')

[@Pikachu83622]

Bruuuh...ye yad kese hoga😂

[@huzaifa9438]

does it is correct code !?

[@ashvanichaudhary9782]

Sir kya MySQL ki bhi classes hongi?

[@thattechieguy]

videos available kindly check

[@LUCIFER-yk1jt]

Sir ' global ' variable should be used in every function definition for top. without it, it is showing error

[@yuvrajbhaia2939]

Why did we take S=[ ] , when we didn't use it anywhere in the code??

[@thattechieguy]

bro here S acts as stk for the rest of the program

[@aryankushwaha9306]

Bhaiya yae kya boards kae exam mae aata hai....practicals mae...plz koyi bataoo

[@jackma9528]

Bhaiya yaha error dikha raha hai... It's telling that "local variable refrencedy before assignment"

[@thattechieguy]

kindly see my comment and it's reply in the comment section

[@mr.arshad9803]

sir plsss give discord link jo description main thi wo wali expire ho gyi

[@praveenagarwal9462]

Bhaiya wave optics ke notes aur semiconductor ke notes Bhi Daal dijiye aap KZbin par ....🙏

[@b.harish4080]

Wave optics already uploaded on discord

[@priyanshukumarsaw8121]

Please share it's notes

[@karandx_official]

Sir please provide the link of the code 🙏🙏

[@musicophilic3040]

Can anyone please tell me where we can find new notes of wave optics by Aman bhaiya?

[@munmun2830]

Discod server☺

[@musicophilic3040]

@@munmun2830 kon sa?

[@sayanjitb]

How to get this code file?

[@thattechieguy]

diy

[@deepanshubaberval8911]

Where is not of this lecture

[@siddeshshinde7303]

Aman bhaiya please assembly language programing bhi karo na

[@ZAMislive]

great video bro i laughed when the first output come, at the very first time

[@amanvedio55]

Sir vector chapter ka vedio banaiye

[@gurmankaur1060]

Dosto ye %d kya h?

[@avinash8238]

Which software is this ?

[@vectorx2003]

Re-upload old videos of C++ for Class 12

[@akshatjaiswal6073]

Ye )practical me aa skta hai?

[@Thesongmate]

Kis application pe code krte ho bta do please

[@sanjaysrivastava9849]

Vs code

[@minhadtuashimahmed3873]

Yeh to bahut lamba program haii.... Exam m stack queue se related kaise questiom ayenge???

[@gatijshakyawar3674]

Agli baar se mai bhi 'Andhe 1-5 daalna tha' hi dalunga else condition me🤣

[@41.paridarshansahoo31]

which python software u r use?

[@shreeyashmishra2120]

vs text editor

[@ahamedomaraziz6352]

i still didnt understand the reason for putting the empty s=[]

[@dhyeytank835]

Where are the notes of this lecture???....not there in the description box

[@goingstoppers7944]

Notes kaha hai???

[@AdityaSharma-fp8lo]

This is the most code intensive lecture.......thanks bhaiya😊😊😊😊 and pls everyone like share its dissapointing that likes are decreasing video by video.....😐😐😐😐

[@hi7156]

Bhaiya hadd se jyaada ad daalte hai 💀

[@dakshjain6673]

Bhaiya please 🙏🙏🎉 Jaise hi 2 Feb ko dates announce hogi CBSE ki, 12 pcm ke liye full 3 months detailed strategy bana dena subject wise please🙏🙏🙏 Please bhaiya 🙏🙏🙏👍👍👍 Much needed🙏🙏 Huge request 🙏🙏 Please think on it🙏🙏 Don't ignore 🙏🙏🙏

[@renumalik8386]

Sir plz jaldi jaldi cs python ka pura syllabus kar va dijiye for baords As we are having our pre boards in February

[@Ashu_7]

Si aapki theme sabse alag can please tell us about that also yeh jo identaion ki lining show krta hai iske baare main bhi basicaaly aap apne pure python ki setting bta do ek baar Please

[@thattechieguy]

use ide provided by jetbrains

[@devyanjha]

Please upload notes of this lecture

[@priyankpatel5501]

Maza AYA !!!!

[@USameer_gurjar]

Sach h na

[@nursing9294]

Sir es playlist ke poore notes toh upload kr dete..

[@prathemeshjankwade9641]

How many marks to pass in computer science in theory please reply

[@MeetThakur_]

23.5

[@nikunjgupta5742]

24

[@adityaupmanyu-nc7xq]

Bhai 20 ka kardega to 4 extra badha dete hai 🎉

[@sythe263]

awesome!

[@mayankraj3783]

Aap vs code m code krte ho na

[@sahajpreet3448]

pop is not working man even if i have changed the function name

[@manthansinghrauthanof8thc543]

bro hamari teacher ne hamse sign karva liye ki 60 % stack me nahi ay to 1week ke liye suspension.

[@nandinisharma1055]

mtlb?

[@amralifts]

I enjoy the way he says, "Eat well, sleep well and Study well!!"

[@siyona.snotra]

khaa hai code ka link

[@chitrakshimahajan7932]

Yahan %d kya hai??

[@Thinkmore-ds3fq]

thank u

[@akarshibajpai6367]

Bhai java k liye bhi kuch