Q5. Construct a pushdown automaton (PDA) that recognizes the following language: Each string of the language contains at least two a's or four b's over the alphabet (a, b} Examples: ba (is not accepted, it doesn't contain at least two a's, also, it doesn't contain at least four b's) aba (is accepted, it contains at least two a's) babbb (is accepted, it contains at least four b's) bab (is not accepted, it doesn't contain at least two a's, also, it doesn't contain at least four b's)

Q5. Construct a pushdown automaton (PDA) that recognizes the following language: Each string of the language contains at least two a's or four b's over the alphabet (a, b} Examples: ba (is not accepted, it doesn't contain at least two a's, also, it doesn't contain at least four b's) aba (is accepted, it contains at least two a's) babbb (is accepted, it contains at least four b's) bab (is not accepted, it doesn't contain at least two a's, also, it doesn't contain at least four b's)

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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