Question

Q1) (8%) Show a leftmost derivation step by step (each step on a single line)

          for the statement: A = A + B * C using the following grammar:

<assign> --> <id> = <expr>
<expr>    --> <id> + <expr> | <id> * <expr> |   <id>
<id>         --> A | B | C

Q2) (6%) Is this grammar ambiguous (Yes or No?) Justify your answer.

Q3) (6%) Does this grammar enforce the precedence of the conventional operators  (Yes or No?)   Justify your answer.

Answer 1