Let 'x', 'y', 'z' and 'u' represents the number of entries in rows of Non-terminals 'S', 'A', 'B' and 'C' respectively. The value of x + y + z + u is ______ .

Why ε is not shown in First(S). First(s) does contain ε . And please help me figure out which grammar is this? According to me it is NOT LL(1) (since it is left factored), NOT LR(0) (Since the Item 0 has a R-R conflict), NOT SLR(1) (The item 0 has a RR conflict since Follow(X) = Follow(Y) = {a,b} correct me If i'm wrong

Consider the following grammar which is not LL(1) because LL(1) table contain multiple entry for same production. The number of entries have multiple productions in LL(1) table are ________.

Let G be a grammar with the following productions: If LR(1) parser is used to construct the DFA using the above productions, then how many look-a-heads are present for an item T → .T * F in the initial state ________.