What are the languages accepted by PDA?
What are the languages accepted by PDA?
The languages which can be accepted by PDA are called context-free languages (CFL), denoted by LCF. Diagrammatically, a PDA is a finite state automaton (see Fig. 5.1), with memories (push-down stacks).
Which of the following is accepted by an Npda and DPDA?
The language accepted by DPDA is called DCFL(Deterministic Context-free Language) which is a subset of NCFL(Non-deterministic Context-free Language) accepted by NPDA. The language accepted by NPDA is called NCFL(Non-deterministic Context-free Language).
Which of the following is accepted by an Npda and not DPDA?
Explanation: All regular languages can be accepted by a non deterministic finite automata and all context free languages can be accepted by a non deterministic push down automata.
Which of the following can be accepted by a DPDA?
7. Which of the following can be accepted by a DPDA? Explanation: Theorem: The language pal of palindromes over the alphabet {0,1} cannot be accepted by any finite automaton , and it is therefore not regular. Explanation:The possible change in the stack contents is a change in the number of A’s on the stack.
Which of the following language Cannot be accepted by and Deterministic Push down automata?
L = pnqnrn it is not accepted by deterministic pushdown automaton and hence it is not a DCFL.
Does PDA accept regular language?
Every regular language is accepted by some PDA (basically, just ignore the stack…) Idea: on input w, M nondeterministically picks a leftmost derivation of w from S. Stack holds intermediate strings in derivation (left end at top); letters in Σ on top of stack matched against input.
Which class of language is accepted by PDA Mcq?
Explanation: Push down automata is for Context free languages and they are termed as Type 2 languages according to Chomsky hierarchy.
Which of the given languages are accepted by non deterministic PDA but not by deterministic PDA?
L can be accepted by ϵ-Non-Deterministic finite automata. L can be accepted by Non-Deterministic Push down automata but not by Deterministic push down automata.
Which of the following can be accepted by DPDA palindrome string?
Discussion Forum
| Que. | Which of the following can be accepted by a DPDA? |
|---|---|
| b. | The set of odd length palindrome over {a,b} |
| c. | {xx^c| where c stands for the complement,{0,1}} |
| d. | None of the mentioned |
| Answer:None of the mentioned |
Which language is accepted by the pushdown automata Mcq?
regular languages
Thus, this pushdown automata can only accept languages which can also be accepted by finite state automata and a finite state automata accepts only regular languages. Thus, B is the correct choice.
Which of the following language Cannot be accepted by and deterministic pushdown automata?
What is DPDA in automata?
In automata theory, a deterministic pushdown automaton (DPDA or DPA) is a variation of the pushdown automaton. The class of deterministic pushdown automata accepts the deterministic context-free languages, a proper subset of context-free languages.
