Hi, I need help with the following questions:
Question 1
Select all the statements below which are TRUE:
NFAs and DFAs are equivalent.
DPDAs cannot have -transitions.
For any context-free language L, there exists a NPDA that accepts L.
NPDAs and DPDAs are equivalent.
Any context-free language is accepted by some DPDA.
Any regular language is accepted by some NPDA.
Question 2
Select all languages below which are context-free languages :
L = {a n b n : n 0}
Question 3
What is the language accepted by the NPDA below?
Question 4
Write the sequence of moves done by the NPDA below when the input sequence is w = bbaaac. Is the string w accepted?
Solution
Answer
1 .Select all the statements below which are TRUE:
(e) Any context-free language is accepted by some DPDA.
(2).Select all languages below which are context-free languages:
Answers
L equals left curly bracket u u: space u element of left curly brackets a comma b right curly bracket asterisk time’s right curly bracket.
L equals left curly bracket a to the power of n b to the power of n a to the power of n space: space n space greater or equal than space 0 right curly brackets.
(3) and (4) image was not visible properly. not opened
.
Hi- I need help with the following questions- Question 1 Select all th.docx
1. Hi, I need help with the following questions:
Question 1
Select all the statements below which are TRUE:
NFAs and DFAs are equivalent.
DPDAs cannot have -transitions.
For any context-free language L, there exists a NPDA that accepts L.
NPDAs and DPDAs are equivalent.
Any context-free language is accepted by some DPDA.
Any regular language is accepted by some NPDA.
Question 2
Select all languages below which are context-free languages :
L = {a n
b n
: n 0}
Question 3
What is the language accepted by the NPDA below?
Question 4
Write the sequence of moves done by the NPDA below when the input sequence is w = bbaaac.
Is the string w accepted?
a) NFAs and DFAs are equivalent.
b) DPDAs cannot have -transitions.
c) For any context-free language L, there exists a NPDA that accepts L.
d) NPDAs and DPDAs are equivalent.
e) Any context-free language is accepted by some DPDA.
f) Any regular language is accepted by some NPDA.
2. Solution
Answer
1 .Select all the statements below which are TRUE:
(e) Any context-free language is accepted by some DPDA.
(2).Select all languages below which are context-free languages:
Answers
L equals left curly bracket u u: space u element of left curly brackets a comma b right curly
bracket asterisk time’s right curly bracket.
L equals left curly bracket a to the power of n b to the power of n a to the power of n space:
space n space greater or equal than space 0 right curly brackets.
(3) and (4) image was not visible properly. not opened
