CMPSCI 401: Theory of Computation

David Mix Barrington

Spring, 2012

Homework Assignment #4

Posted Tuesday 13 March 2012

Due on paper in class, Wednesday 28 March 2012

There are twelve questions for 100 total points plus 10 extra credit. All are the textbook, Introduction to the Theory of Computation by Michael Sipser (second edition). The number in parentheses following each problem is its individual point value.

Students are responsible for understanding and following the academic honesty policies indicated on this page.

• Problem 4.12 (10)

• Problem 4.20 (10) Don't forget the second question -- note that the language PREFIX-FREE_CFG also occurs in Problem 5-32(b).

• Problem 4.25 (10XC)

• Problem 4.28 (10)

• Exercise 5.2 (10)

• Problem 5.12 (10)

• Problem 5.16 (10)

• Problem 5.23 (5)

• Problem 5.30 part b only (5)

• Problem 5.32 part b only (10)

• Problem 5.33 (10)

• Problem 5.35 (10)

Last modified 13 March 2012