(a) Show that the following grammar is ambiguo- ::= | [ ::= 0 | 1 | 2 | 3|4|5|6|7|8 |9 (b) Find an unambiguous grammar for the same language as the grammar above. Make as few changes to the original grammar as possible.

(a) Show that the following grammar is ambiguo- ::= | [ ::= 0 | 1 | 2 | 3|4|5|6|7|8 |9 (b) Find an unambiguous grammar for the same language as the grammar above. Make as few changes to the original grammar as possible.

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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Question

(a) Show that the following grammar is ambiguous:
<S> ::= <D> | <D><S> | <D><D><S>
<D> ::= 0|1|2 | 3|4|5|6|7| 8 |9
(b) Find an unambiguous grammar for the same
language as the grammar above. Make as few
changes to the original grammar as possible.

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