Give a DFA for each of the following sets of strings over the alphabet {a, b}. Be sure to indicate the start and final states. Try to design correct DFAs that are as simple and neat as possible. a. L(a*b*a*) b. L(a*b* + b*a*) c. {w | w contains the substring abab, ie, w = xababy for some x, y = {a,b}*} d. {w | w is any string except ba} e. {w w is non-null and starts and ends with the same symbol}

Give a DFA for each of the following sets of strings over the alphabet {a, b}. Be sure to indicate the start and final states. Try to design correct DFAs that are as simple and neat as possible. a. L(aba) b. L(ab + ba) c. {w | w contains the substring abab, ie, w = xababy for some x, y = {a,b}} d. {w | w is any string except ba} e. {w w is non-null and starts and ends with the same symbol}

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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