1. Construct a DFA for each of the following regular expressions:
a) ab + c
b) a*b + c
c) ab*c*+ ac
2. Construct an NFA for the following regular expression:
a) (a + b)*ab
b) a*b*
c) a*b* + c
d) a* + b*
e) a* + b* + ac*
1. Construct a DFA for each of the following regular expressions: a) ab + c...
For each of the following regular expressions, use (11.2.3) to construct an NFA. a. (ab)* b. a*b* c. (a + b)* d. a* + b*
Regular expressions, DFA, NFA, grammars, languages Regular Languages 4 4 1. Write English descriptions for the languages generated by the following regular expressions: (a) (01... 9|A|B|C|D|E|F)+(2X) (b) (ab)*(a|ble) 2. Write regular expressions for each of the following. (a) All strings of lowercase letters that begin and end in a. (b) All strings of digits that contain no leading zeros. (c) All strings of digits that represent even numbers. (d) Strings over the alphabet {a,b,c} with an even number of a's....
a. Draw the transition diagram for the DFA b. Construct a regular expression for the language of the DFA by computing all the R_ij^(k) regular expressions. Consider the following DFA: 1 A В C B A C В
1. Write regular expressions to capture the following regular languages: (a) The set of binary strings which have a 1 in every even position. (Note: odd positions may be either 0 or 1.) (b) The set of binary strings that do not contain 011 as a substring. (c) Comments in Pascal. These are delimited by (* and *) or by { and }, and can contain anything in between; they are NOT allowed to nest, however. 2. Write a DFA...
1. Generate five strings from each of these regular expressions A. b ( ab ) * B. b (a + b)* C. (aa + b) * b D. a ( a + b)(a + b)b E. ab ( ab)* ab 2. Finite state machines for each of the above regular expression
1.Calculate a regular expression corresponding to the following DFA, available at the jflap.org website, by the method of solving a system of simultaneous equations in standard form. q0 is indicated as the initial state. 2.Convert your regular expression to an NFA using the procedure of Hopcroft and Ullman 3.Convert the NFA - to a DFA. go q1 q2
31. Scanner Construction (10 pts) Construct a regular expression for recognizing all non-em and b that do not end in b. a) pty strings gs composed of the letters b) Convert the regular expression to an NF c) Convert the NFA to a DFA (show the sets of NFA states for each DFA state).
1. For each of the following regular expressions find a language (i.e., a set of strings) over A = {a,b,c} that can be represented/described by that expression. (6 points) a. bac + bc b. b*ac + bc C. b*ccca* a. 2. Find a regular expression to describe the given language: {b, ac, bac, bc, ..., b”ac, bc”, ... } (3 points)
Please answer any 7 of them ТОС Answer any 7 from the followings: 1. Regular expression to NFA: i) ab(aUb)* ii) (aba U a)*ab 2. Explain and construct a generalized NFA, 3. NFA to regular expression 0 3 91 93 8 a 4. DFA to regular expression 011 5. Explain the rules of pumping lemma briefly with an example. 6. Give an example of right linear grammar and left linear grammar. 7. L(G) = {1*20 m >= 1 and >=1}....
4(10 points] Let A be the language over the alphabet -(a, b) defined by regular expression (ab Ub)aUb. Give an NFA that recognizes A. Draw an NFA for A here 5.10 points] Convert the following NFA to equivalent DFA a, b 4(10 points] Let A be the language over the alphabet -(a, b) defined by regular expression (ab Ub)aUb. Give an NFA that recognizes A. Draw an NFA for A here 5.10 points] Convert the following NFA to equivalent DFA...