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MadeEasy Test Series 2018: Compiler Design - Grammar
charul
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Compiler Design
Jan 9, 2018
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Mar 5, 2019
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ajaysoni1924
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I'm getting 4, can someone verify
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charul
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Jan 9, 2018
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MiNiPanda
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Jan 10, 2018
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@vishal chugh yes I guess you are correct. Then it should be 5 right?
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charul
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Jan 10, 2018
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@vishal chugh , isn't A also useless, as it is not generating a terminal symbol?
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MiNiPanda
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Jan 10, 2018
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@charul oh yes.. totally overlooked it!!
S->a/bC/b
C->a
Then 4 right? I hope it's the final one.. :P
You were right ;)
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Elimination of useless symbol
using bottom up then top down approach we get
S->B
B->a | bC
C-> a | $\epsilon$
Now we remove unit production we get
S->a | bC
C->a | $\epsilon$
Now we remove null production we get
S-> a | b | bC
C-> a
Total production 4
Tesla!
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Jan 10, 2018
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hs_yadav
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Jan 21, 2018
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tesla...remove C-> a too:-
it is also useless..
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Tesla!
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How it is useless @hs_yadav
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