Simplification of CFG | Context Free Grammar | Compiler Design

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For complete Compiler Design, check out this video: kzbin.info/www/bejne/hYKmm5Shn6h9q5Y

[@NeerajHSingh]

Sir ek correction h . 17:55 pr s->aA/a hoga aaa nhi nhi to language "a" derive nhi kr payegi

[@oneshotstudy4303]

Same 😁 here mene bhi comment check Kiya ki mene hi notice Kiya ya ye sir se mistake ho gayi hai 😄

[@ankitmishra697]

@@oneshotstudy4303 same question bro

[@souravsaini2187]

17:23 pe jb apne S production me aaa add kia h uske place pe a ayega kyunki hme vahan aa nhi place krna hme vahan null replace krna h

[@rahiljakir]

correct

[@Jogsgarden]

correct, otherwise we can not generate 'a' which was possible by the same grammar before removal of null production.

[@vandnagureja3]

Sir, there may be many intellectuals but your way of building concept is praiseworthy.

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Glad to hear that @Vandna❤ keep learning! Do like, subscribe & share the video, you can also visit our website www.knowledgegate.in for more amazing videos & contents👍

[@devanshurawat826]

c) 3 steps Null removal Unit production removal Useless production removal

[@kathanparekh6135]

18:25 Padhai k Video aise h khojaya karti hai is right 💯💯💯 aur yaaha to koi ladka gali de de aur ladki kamar matka de to trending ho jati hai video. Kisiko padhna nai hai sabko bas nautanki hi dekhni hai... I respect your work sir. Hats Off to you sir ... I'll support you...

[@adityaralhan1154]

17:53 ans is:- S->aA|a A->aaA|aa therefore-c)4 Thanks for the lecture sir

[@samarthtandale9121]

Sir, at 17:45, the symbol S can also generate string 'a' as A can be lambda as well...

[@tusharkulkarni8742]

bro before that we eliminated lambda from A.

[@samarthtandale9121]

@@tusharkulkarni8742 Bro, to compensate for that we have to ad 'a' in S ... because the Grammar before and after elimination will generate the same language na !

[@humaneBicycle]

yes the corrent ans would be S->a/aA A->aaA/aa

[@rohantandale3419]

true@@humaneBicycle

[@gauravsingh8173]

@humaneBicycle correct. There has been slight error from sir

[@tannuchauhan326]

Option C - Three steps Thanks a lot sir ❤❤

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You're welcome dear @Tannu😍 Keep learning & stay connected for more amazing videos & contents👍

[@YASHPAL-qb9sn]

Yes you are right

[@OmkarBcw]

Sir the way you teach is awesome Thanks Sirji....

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[@30-csejayamahotkar30]

Thanks sir mujhe kahi s smjh nhi aa rha tha ye but apne bht acche se samjhaya thank you so much

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[@aayushisharma7742]

​@@KNOWLEDGEGATE_kg xc

[@vikramverma2152]

Sir kuch na samajh nhi aa rha

[@rahulrai1530]

​@@vikramverma2152Skill issue bro

[@smit1044]

​@@rahulrai1530kya skill issu thoda kat Diya value layenge par kahase laye kaise Kiya vo kahi bataya

[@pawanpt2682]

S->AB/a A->Bc/b B->aB/c C->aC/B sir after elimination useless production what will be the resultant gram?

[@vanshmalhotra6430]

17:09 When we replaced aBB with lambda how we got aaa instead of a?

[@ilihaspatel399]

yes that is mistake i also got a

[@tusharkulkarni8742]

Bro after removal of null production we got value of A as aa then we replaced that aa with A in aA thats why we got aaa.

[@gourimmenon2726]

@@tusharkulkarni8742 but that's not what we do....we replace A with lambda everywhere to cancel out the effect of removing that null production....so it should be a rather than aaa right

[@manasraikaushik864]

There should also bhi single a remains after putting value of A to null in S ?

[@rushalithorat2865]

example of Null production 1) S---AbB A---a| epsilon B---B|epsilon Ans:- when , A---epsilon:- S---AbB|bB A---a B---b | epsilon When , B---epsilon S---AbB|bB|Ab|b A---a | epsilon B---b Is This correst answer sir...plz reply

[@khushiprajapati1939]

I guess ok Q) S->AbB A->a/ epsilon B-> b/ epsilon Final answer S -> AbB/ bB/ Ab/ b A-> a B-> b

[@rushalithorat2865]

@@khushiprajapati1939 thanks dear

[@ankitmehta4133]

You are right, padhai ki koi video kabhi trending me nhi aati,

[@AmazingVideoGaming]

Awesome explanation

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[@ankitmishra697]

Thankyou so much sir all doubt is clear with concept

[@KNOWLEDGEGATE_kg]

Glad to know that, Ankit. Keep learning & following for more content🙂

[@millionmistakesG99]

At 18:09 sir ne answer bata diya (3)

[@daSPacito666]

Thank you sir

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[@rahulgiri627]

Thank you sir for this concept lecture

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[@HARSH-uh9nc]

Homework question:- option C

[@soumyadeepbarik5711]

3 steps must be needed 1. for elemination of epsilon production , 2. elimination of unit production 3. elimination of useless function.

[@ankitmishra697]

S-> aA A-> aaA | epsilon isi me confusion ho gya sir S-> aA | a A -> aaA | aa and thankyou so much isr

[@erkamalbajpai8372]

Very nice sir❤❤

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[@erkamalbajpai8372]

Sure sir🙏🙏

[@dkcodecamp1892]

Thanks sir

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[@RailExpressbyPreetam]

thank you so much sir , well explained

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[@pranav1718]

Thanks a lot sir 😊🙏✨

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[@Deepak-e2f2h]

Good evening sir

[@ratneshsiddha88]

sir anand aagya

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[@Honey_Goyal]

Sir Maja aa gya aapse padta rha to back to kabhi lagegi hi nhi😅

[@KNOWLEDGEGATE_kg]

Haha very nice! All the best 👍 Keep learning & stay connected for more amazing videos & contents ❤

[@suman0332]

From 18:20 heart touching ❤😢

[@39.parteekkumar77]

Great video!!

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[@dancingdemon6173]

thanks a lot sir

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[@17-ashitoshjagtap41]

3 steps are required to help the simplification of grammer

[@jisouu2985]

sir GNF?

[@shaktivedantasingh2903]

Option C - Three steps

[@3024_SahilThite]

Sir, at 17:45, i guess the answer sould be S --> aA / a A --> aaA / aa because the grammar should also generate a string "a"

[@namandeep4332]

removal of unit prod., null prod.and use less symbol that is 3 steps.

[@dillusion8588]

Correction in the practice ans: S->a/aA A->aaA/aa

[@fearless_fusion]

Nice Videos sir !!

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[@arshadv.ansari246]

Thanks a TON Sir.🌟

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[@anansari1808]

thanks sir

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[@NoFormalities-y1k]

in the last question , s -> a/aaa/aA . but sir have not taken a , can anyone explain? why!

[@zeedan1943]

no need to derive aaa as it will get derived either way so the answer should be S-> aA/a and A->aaA/aa

[@NoFormalities-y1k]

@@zeedan1943 bhai ab to sab bhool gya , exams khtm ho gye 😅

[@zeedan1943]

@@NoFormalities-y1k sad mere kal hai isiliye padh raha XD

[@NoFormalities-y1k]

@@zeedan1943 best wishes xD

[@AditiVerma825]

Option C

[@VickyKumar-yd8od]

Ans is at 18:09

[@Crafteruru]

Thanku so much sir, thanks a ton for uploading this.

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[@pawanpt2682]

3 steps

[@zeeeshanmughalmughal6105]

Answer is 3

[@BG-lj6fw]

great!!!

[@KNOWLEDGEGATE_kg]

Thank you, keep learning👍😊

[@Redhuji653]

Option c

[@anandsagar4646]

Answer is 3

[@RukhsarMurtaza]

C: 3

[@41_ZakiKhan]

Le lo sir engagement ❣️😂

[@monikajoshi3074]

Sir last me sirf a hi aayega aaa nahi aayega

[@muhammadumairshaikh4971]

3 steps

[@soumyadeepbarik5711]

The ANSWER of the HOME-WORK QUESTION is 4 1.REMOVAL OF LEFT-RECURSION 2.REMOVAL OF NULL-PRODUCTION 3.REMOVAL OF UNIT-PRODUCTION 4. REMOVAL OF UNNECESSARY SYMBOLS.

[@SAGHEERABBAS-j3v]

3😊

[@abhisheksutar344]

3

[@muhammadumairshaikh4971]

jai hind

[@pawanpt2682]

3

[@palworld_gaming]

5

[@krsnabantai]

3

[@royalgirl2837]

Three

[@sidharthkumthekar3179]

C

[@muhammadumairshaikh4971]

baharat mata ki jai

[@cp65143]

🧑‍🏫🧑‍🏫

[@raghavmanish24]

thanku sir

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[@muhammadsalman9914]

Thank you Sir

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[@AnuKumari-qc7ye]

Thanku sir 😊

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[@Motivational_for_young]

3

[@zuniiiiii]

3

[@salaooddinansari311]

3

[@salmanimteyaz733]

3

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3

[@dimpisansarwal9506]

3

[@suman0332]

3

[@SyedaRutbaEman]

3

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3

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3

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3

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3

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3

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3

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3

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3