Write the context-free grammars for the following languages.1. The set of strings of a's and b's that contain the same number of a's and b's (in any order).|2. L = {a* b° a | z =x+y}, that is the set of strings of x number of a's followed by y number of b's andthen followed by z number of a's, satisfying the condition z =x+y.

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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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Write the context-free grammars for the following languages. 1. The set of strings of a's and b's that contain the same number of a's and b's (in any order).