Find Follow Function | First and Follow in Compiler Design

[@KNOWLEDGEGATE_kg]

For complete Compiler Design, check out this video: ua-cam.com/video/OQCjakjCJu4/v-deo.html

[@anshukumari4195]

I think answer of last practice question will be:
Follow(S)={$}
Follow(B)={a,b,h}
Follow(C)={$,a,b,h}
Follow(D)={$,a,b,h}
Follow(E)={$,a,b,h}
By mistake sir forgot to calculate D->EC
Answe of HW question is YES

[@maheshnarayankar6515]

At 12:24 , FOLLOW(C) must be { b U FIRST(E) U FOLLOW(D) U FIRST(D) } , which result's in {$,a,b,h} . Could you please look at this problem @KNOWLEDGE GATE

[@gamersgame43]

yes true

[@prateekshukla8336]

Sir I think Follow(C) and Follow(E) must be {$,a,b,h} because here u forgot to consider productions D->EC | b | epsilon and E ->CDb | epsilon while finding follow of C. Please correct me if I am wrong!

[@chaitanyasharma8707]

yes u r right 👍👍

[@rahiljakir]

correct

[@raazmatrixgaming4876]

No, i think you are wrong, cuz in Follow(C), if we take D->EC | b | epsilon and E ->CDb | epsilon (which sir has missed), we will have D as follow of C, for which first(D)={a,b} which is already included. Even though, sir missed this step in explanation, the answer is still right!!! **Correct if wrong**

[@prateekshukla8336]

@@raazmatrixgaming4876 Follow(C) will be {b, First(E), Follow (D), First(D)} which is equal to {b, a, $, h} after evaluating each of them considering every production.

[@vehugupta937]

@@prateekshukla8336 yes its right 👍

[@soumyadeepbarik5711]

The ANSWER for the "HOME-WORK" QUESTION is YES , "FOLLOW-FUNCTION" has been required even for the case of NULL-PRODUCTION.

[@sanjukumarkhanger5832]

Sir,
Your teaching style is excellent. U are great sir. I am requesting you
to share a video on LL(1), SLR, LR & LALR. Please sir

[@KNOWLEDGEGATE_kg]

Thanks a lot dear ❤ You can check out our complete course on Compiler Design for all the topics, sharing the course link below:
www.knowledgegate.in/learn/CompilerDesign-SanchitSir

[@WorldFacts-hs9rn]

Sir one mistake Follow(D)={$,b} only kun k sir BD lka hy tu D ka follow B kesy hua agr DB huta tu wo follow huta tab ham (a,h,b) ko consider krty first of B ko.

[@shailjagoyal9569]

Thku sir for video. With lots of example

[@KNOWLEDGEGATE_kg]

You're most welcome dear❤ Keep learning & supporting! You can also check out our course for all Computer Science subjects, sharing the link below:
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[@kathanparekh6135]

A) YES
Great explanation Sir...

[@KNOWLEDGEGATE_kg]

Thank you! Keep learning & stay connected! You can also check out our website www.knowledgegate.in for more amazing videos & contents👍😊

[@knowledge_apna]

Yes the follow is required to solve the problem of null production

[@preetitayal4294]

Very nice and easy method I ever studied,

[@KNOWLEDGEGATE_kg]

Thank you dear @preeti❤ keep learning & supporting! Do visit our website www.knowledgegate.in for more amazing videos & contents👍

[@maheshnarayankar6515]

very well explained sir , was trying from past 2 days to learn from different videos ,but understood only after watching your's , thank you so much ♥

[@KNOWLEDGEGATE_kg]

Glad you liked it dear @Mahesh❤Do like, subscribe & share the video, you can also visit our website www.knowledgegate.in for more amazing videos & contents👍😊

[@maheshnarayankar6515]

Sir could you please look at 12:24 , I think you have made mistake while solving

[@ahmedraza6257]

So good concepts are clear now

[@KNOWLEDGEGATE_kg]

Great, keep learning👍

[@gameclub1910]

Yes follow is required in case of null production.

[@Abhishek-f6d]

what will be the follow of S and B for below productions??
S-> 1AB/€
A-> 1AC/0C
B-> 0S
C-> 1

[@prateekshukla7243]

SIR PLEASE MAKE COMPLETE PLAYLIST FOR THIS SUBJECT

[@KNOWLEDGEGATE_kg]

Dear Prateek, for complete course on Compiler Design, please check out the course link below:
www.knowledgegate.in/learn/CompilerDesign-SanchitSir

[@HARSH-uh9nc]

Homework question:- option A

[@soumyadeepbarik5711]

The videos could be more beneficial if you solve both first() & follow() of following questions simultaneously.

[@KNOWLEDGEGATE_kg]

Ok dear will try to consider your suggestion, stay connected👍😊

[@piyalisanyal1677]

Yes

[@mayanknegi5328]

sir can you reconsider C in D (at 13:24)

[@fatimasyeda5389]

Yes you are right there is a mistake , sir ne follow of C mai , 4th production wala C consider hi nai kiya , jiski wja se follow of D include hona tha , follow of C mai

[@soumyodeepdey5237]

@@fatimasyeda5389 Haa Follow (C,D) = {$ , h , a , b} hona chahiye na?

[@khushivaish7125]

@@soumyodeepdey5237 yes

[@soumyodeepdey5237]

@@khushivaish7125 R u studying for GATE?

[@dheerajkhachariawas3477]

Yes absolutely

[@WorldFacts-hs9rn]

one mistake...sir ny BD ko kr diya ya tu nhii follow kr rha tu yhn b ka first nhii kr skty sirf $ aye ga agar D k agy B huta tb follow krta iss trah DB
Follow(D)={b,$}
this is correct follow of D

[@learndaily964]

Sir please make a playlist on machine learning 🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@KNOWLEDGEGATE_kg]

We have a complete course for Machine Learning and Data Science already prepared - www.knowledgegate.in/learn/home/dataScience-MachineLearning

[@vikasgupta7686]

yes

[@Quickets]

Sir what is first and follow of
S->SS+|SS*|a

[@coder5985]

Yes sir

[@soumyadeepbarik5711]

Jiss ka koi nhi uss ka $ hai kya baat hai ji.

[@f16gaming-pubgmobile95]

Sir your follow (C) also should include "h" .

[@dheerajkhachariawas3477]

Absolutely right

[@Ounknown098]

Yes but mistake in follow d

[@mekadoor1415]

12:49 while find the follow of c Why we didn`t choose the occurance at the production of D->EC and E ->CDb

[@naincypriya7017]

Same question but I think in those cases they are not following

[@rahiljakir]

@@naincypriya7017 sir made mistake

[@WanderwithHarshaa]

Sir made mistake we have to consider that then follow of C ,D, E will be same.

[@itszahidz]

12:45 😢😢

[@harbhajansingh9882]

CD also here E->CD

[@Redhuji653]

Option a

[@ashishvinod2193]

yes

[@itszahidz]

Sir where is E ka fist🤔

[@tusharbhalelu9108]

NO

[@learndaily964]

Sir please make a playlist on machine learning 🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@KNOWLEDGEGATE_kg]

You can get it on our website. Here you go: www.knowledgegate.in/learn/dataScience-MachineLearning

[@Raj_Tanvar]

Yes

[@zilesingh6349]

Yes