Discussion
A grammar is LL(1) if
Answer: A
Correct answer: one token of lookahead suffices to choose the correct production
The two Ls mean scanning left to right and producing a leftmost derivation, and the 1 is the tokens of lookahead. The condition is that for each nonterminal the FIRST sets of its alternatives are disjoint, and where an alternative can be empty, that its FIRST set is disjoint from the nonterminal’s FOLLOW set.
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