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(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
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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