LL(1)

Question

Which of the following is LL(1) conflict?

a)FIRST/FIRST conflict

b)FIRST/FOLLOW conflict

c) both

d)none

Comments

@hemant
I donot understand what u tell
for A --> aA / a. this line it couldnot be even LL(1)
how it could contain LL(1) conflict then?

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Am I doing any mistake or question is wrong?

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if the grammar is LL(1) that means it can be parsed by LL(1) parser. Hence there won't be any conflicts and if a grammar is not parsed by LL(1) parser then it is not LL(1) grammar. Easy Peasy :p

Answer 1

First/First Conflict arises when there are two Grammar rules with same non terminal which are having intersecting terminals. 

S $\rightarrow$ E / Ea
E $\rightarrow$ b / $\epsilon$

First(E) = (b,$\epsilon$)
First(S) = (b,a) $\cup (\epsilon , b)$

while construction of LL(1) parsing table under b in S row there will be conflict whether to use S $\rightarrow$ E or S $\rightarrow$ Ea

First/Follow Conflict arises when for a non terminal intersection of First and Follow sets are not $\phi$

https://gateoverflow.in/43312/gate2012-53
This Gate problem contains both the conflicts.