KITES DE INSTALA (2) Given the following grammar, E ::= E + F E ::= F:...
Consider the following grammar (G1) for simple assignment statements. (The symbols in double quotation marks are terminal symbols.) assign → id “ = ” expr id → “A” | “B” | “C” expr → expr “ + ” expr | expr “ ∗ ” expr | “(” expr “)” | id a) Give a (leftmost) derivation for string A = B ∗ A + C. b) Give the parse tree for string A = B ∗ A + C. c)...
Given the following ambiguous context free grammar (3x20) 1. (a) Explain why the grammar is ambiguous (b) Find an equivalent unambiguous context-free grammar. (c) Give the unique leftmost derivation and derivation tree for the string s generated from the unambiguous grammar above. 2. Construct non-deterministic pushdown automata to accept the following language (20) 3. Convert the following CFG into an cquivalent CFG in Chomsky Normal Form (CNF) (20)-
Consider the grammar G = (V,Σ,R,E) with V = {E,T,F} and Σ = {a,+,∗,(,)}, having the rules E → E+T | T T → T∗F | F F → (E) | a Give leftmost derivations for each of the following: (a) a∗a+a∗a (b) a∗(a+a)∗a
1.) Consider the following grammar in which S, A, and B are nonterminal symbols and S is the start symbol. S → 1A | 0B A → A0 | 1B B → 10A| 1 Show that the grammar is ambiguous by showing two parse trees for the sentence 1110110 using leftmost derivation.
2. Consider the following grammar: <assign> à <id> = <expr> <id> à A | B | C <expr> à <id> + <expr> | <id> * <expr> | ( <expr> ) | <id> Show a parse tree and leftmost derivation for the following statements: (a) A = ( A + B ) * C (b) A = A * ( B + C ) 3. [10 Points] Show that the following grammar is...
Consider the following grammar (S, A, B, and C are nonterminal symbols; S is the start symbol; 0 and 1 are terminal symbols): S → AA A → BCB B → B0 | B1 | 0 | 1 C → 00 | 11 Which of the following sentences are in the language generated by the grammar? Show derivations for the sentences that can be generated. If a sentence cannot be generated by the grammar, explain why. a) 10010001 b) 01101101...
(a0Give the derivations and parse trees for the following strings using the grammar given below: • abba • babab (b) Give the derivations and parse trees for the following strings using the grammar given below: • a cat napped • a cat barked P={ <sentence> → <article><noun><verb> <article> → "a" <article> → "the" <noun → "dog" <noun> → "cat" <verb> → "barked" <verb> → "napped" }
Question Set 2 1. Given the following grammar dactor>-> ( <expr> ) a) What is the associativity of each of the operators? What is precedence of the operators? Show a leftmost derivation and parse tree for the following sentence: b) c) A-A(B(C A)) d) Rewrite the BNF grammar above to give precedence over and force to be right associative.
Given the grammar E -> E + T | T T -> T * F | F F -> E | id Parsing the string id*id results in: Id * id F * id T * id T * F T E What kind of parsing is this? What would the parsing look like if it were the other method?
Question Set 2 1. Given the following grammar dactor>-> ( <expr> ) a) What is the associativity of each of the operators? What is precedence of the operators? Show a leftmost derivation and parse tree for the following sentence: b) c) A-A(B(C A)) d) Rewrite the BNF grammar above to give precedence over and force to be right associative.