Question

Write a formal grammar that generates all strings of odd length over Σ = {a, b}.

Write a formal grammar that generates all strings of odd length over Σ = {a, b}.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Design a DFA accepting the language of all strings over Σ = {0, 1} with the...
Design a DFA accepting the language of all strings over Σ = {0, 1} with the property that the number of 0s and the number of 1s in a string are both odd.
Show a regular expression representing the described set: a). The set of strings of odd length...
Show a regular expression representing the described set: a). The set of strings of odd length over {s,t,r,i,n,g} containing exactly 3 n's.
How many binary strings of length 15 contain the same bit in all the odd numbered...
How many binary strings of length 15 contain the same bit in all the odd numbered positions? The positions are numbered 1, 2, . . . , 15. Show how you arrived at your answer, which rules of counting were used etc. Thank You
The grammar below generates Boolean expressions in prefix notation: B → O B B | not...
The grammar below generates Boolean expressions in prefix notation: B → O B B | not B | id O → and | or a) Write an attribute grammar to translate Boolean expressions into fully parenthesized infix form. For example, expression and and a or b c d turns into the following fully parenthesized expression ((a and (b or c)) and d). b) Now write an attribute grammar to translate the Boolean expressions into parenthesized expressions in infix form without...
This is a Discrete math problem. a. How many bit strings of length 12 are there...
This is a Discrete math problem. a. How many bit strings of length 12 are there in total? b. How many bit strings of length 12 contain an odd number of 1s? c. How many bit strings of length 12 contain “111000” as a substring of 6 consecutive bits in a row?
give a recursive definition and write a Post system that defines the set of binary strings...
give a recursive definition and write a Post system that defines the set of binary strings of odd length that have an “x” as the middle characters, using regular expressions
Automata Theory and Formal Languages Problems 1: Consider the following two grammars. Grammar G1- S →...
Automata Theory and Formal Languages Problems 1: Consider the following two grammars. Grammar G1- S → aSb / ∈ Grammar G2- S → aAb / ∈, A → aAb / ∈ a. is G1=G2 b. What is the grammar generated by the expression Problem 2: Let us consider the grammar. G2 = ({S, A}, {a, b}, S, {S → aAb, aA → aaAb, A → ε } ) Derive aaabbb Problem 3: Suppose we have the following grammar. G: N...
Find a regular expression to describe: The set of all strings over the alphabet {a, b,...
Find a regular expression to describe: The set of all strings over the alphabet {a, b, c, d} that contain exactly one a and exactly one b So, for example, the following strings are in this language: ab, ba, cccbad, acbd, cabddddd, ddbdddacccc and the following strings are NOT in this language: a, ccbc, acbcaaacba, acacac, bcbbbbbca, aca, c, d, b
Find a PDA for the palindromes of odd length over { 0, 1 }.
Find a PDA for the palindromes of odd length over { 0, 1 }.
Let  Σ = { a, b }. Which of the following strings cannot be represented by the...
Let  Σ = { a, b }. Which of the following strings cannot be represented by the RE a* b* (ba)* a*?