Instructions: Please hand draw all parse trees, take a picture uploading. 6. Using the grammar of Example 3.2 (pictured), draw a parse tree of these statements: EXAMPLE 3.2 A Grammar for Simple Assignment Statements 10. = → A| B|C | * a) B= C✶ (A✶ C + B) b) A A✶ (B+ (C)) c) CB + A*C | ( ) | Describe in English, the language defined by the following grammar: → > a | a b| b c | C 12... Consider the following grammar: a c | | b |ε → c | C >d | Which of the following sentences are in the language generated by this grammar? a) abcd b) acccbd c) acccbcc d) acd e) accc
Instructions: Please hand draw all parse trees, take a picture uploading. 6. Using the grammar of Example 3.2 (pictured), draw a parse tree of these statements: EXAMPLE 3.2 A Grammar for Simple Assignment Statements 10. = → A| B|C | * a) B= C✶ (A✶ C + B) b) A A✶ (B+ (C)) c) CB + A*C | ( ) | Describe in English, the language defined by the following grammar: → > a | a b| b c | C 12... Consider the following grammar: a c | | b |ε → c | C >d | Which of the following sentences are in the language generated by this grammar? a) abcd b) acccbd c) acccbcc d) acd e) accc
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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Transcribed Image Text:Instructions: Please hand draw all parse trees, take a picture
uploading.
6.
Using the grammar of Example 3.2 (pictured), draw a parse tree of these statements:
EXAMPLE 3.2 A Grammar for Simple Assignment Statements
10.
<assign> <id>= <expr>
<id> → A| B|C
<expr> <id> <expr>
|<id> * <expr>
a) B= C✶ (A✶ C + B)
b) A A✶ (B+ (C))
c) CB + A*C
| ( <expr>)
| <id>
Describe in English, the language defined by the following grammar:
<S> → <A> <B> <C>
<A> > a <A> | a
<B>b<B>| b
<C>c <C> | C
12...
Consider the following grammar:
<S> a <S> c <B> | <A> | b |ε
<A> → c <A> | C
<B>>d | <A>
Which of the following sentences are in the language generated by this grammar?
a) abcd
b) acccbd
c) acccbcc
d) acd
e) accc
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