WebConsider the pushdown automaton (PDA) below which runs over the input alphabet (a, b, c). It has the stack alphabet \{Z_0, X\} where Z_0 is the bottom-of-stack marker. The set … WebApr 1, 2024 · Approach used in the construction of PDA – If ‘a’ comes first then push it in stack and if again ‘a’ comes then also push it. Similarly, if ‘b’ comes first (‘a’ did not comes yet) then push it into the stack and if again ‘b’ comes then also push it.
GATE Overflow - GATE2015-1_51 - Consider the NPDA
WebFeb 13, 2015 · GATE CSE 2015 Set 1 Question: 53 Suppose that the stop-and-wait protocol is used on a link with a bit rate of $64$ $\text{kilobits}$ per second and $20$ $\text{milliseconds}$ propagation … WebJun 28, 2024 · Hence, L is accepted by a NPDA. [CORRECT] 3. L = {a n b n n ≥ 0} can be derived from a deterministic PDA – push if current alphabet is a and pop if it is b. Accept if stack is empty on the end of the string and reject otherwise. ... GATE GATE-CS-2006 Question 11. Like. Previous. GATE GATE IT 2006 Question 30. Next. GATE GATE … synccounter
Context-sensitive Grammar (CSG) and Language (CSL)
WebJun 28, 2024 · GATE GATE-CS-2006 Question 32. Consider the following statements about the context free grammar. G = {S → SS, S → ab, S → ba, S → Ε} I. G is ambiguous II. G produces all strings with equal number of a’s and b’s III. G can be accepted by a deterministic PDA. WebOct 11, 2024 · (A) Deterministic finite automata (DFA) and Non-deterministic finite automata (NFA) (B) Deterministic push down automata (DPDA)and Non-deterministic push down automata (NPDA) (C) Deterministic single-tape Turing machine and Non-deterministic single-tape Turing machine (D) Single-tape Turing machine and multi-tape Turing … WebFeb 12, 2024 · First, Lets check if we can draw a Deterministic PDA for the given language or not. Final state C will accept all strings of the form a n b n and final state D will accept all the strings of the form a n and ϵ. Hence, the given language is deterministic CFL. I is true and II is false. Check for III can be done using a simple argument. thailand chicken farm