(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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(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.
Transcribed Image Text:(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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