Precedence Highest *, /, not +, -, &, mod - (unary) =, /=, <, <=, >=, > and Lowest or, xor Left to right Associativity Show the order of evaluation of the following expressions by parenthe- sizing all subexpressions and placing a superscript on the right parenthe- sis to indicate order. For example, for the expression a +b* с + d
Precedence Highest *, /, not +, -, &, mod - (unary) =, /=, <, <=, >=, > and Lowest or, xor Left to right Associativity Show the order of evaluation of the following expressions by parenthe- sizing all subexpressions and placing a superscript on the right parenthe- sis to indicate order. For example, for the expression a +b* с + d
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Can you please just solve the 12th question?
![9. Assume the following rules of associativity and precedence for
expressions:
Precedence
Highest
*, /, not
+, -, &, mod
- (unary)
=,/=, <, <=, >=, >
and
Lowest
or, xor
Associativity
Left to right
Show the order of evaluation of the following expressions by parenthe-
sizing all subexpressions and placing a superscript on the right parenthe-
sis to indicate order. For example, for the expression
a
+ b * c + d
the order of evaluation would be represented as
((а +
(b * c)')²
+ d) 3
а. а * b
1 + C
b. a
(b -
1) / с mod d
с. (а
b) / с &
(d
e / а - 3)
d. -a or с
d and e
е. а
> b хоr с or d <- 17
f. -а + b
10. Show the order of evaluation of the expressions of Problem 9, assuming
that there are no precedence rules and all operators associate right to left.
11. Write a BNF description of the precedence and associativity rules
defined for the expressions in Problem 9. Assume the only operands are
the names a,b,c,d, and e.
12. Using the grammar of Problem 11, draw parse trees for the expressions
of Problem 9.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd881e991-3ca4-4837-9435-0c083be9a58a%2F46f5485c-7d26-49df-8604-f4c3743cfb6c%2Fwnuot4_processed.png&w=3840&q=75)
Transcribed Image Text:9. Assume the following rules of associativity and precedence for
expressions:
Precedence
Highest
*, /, not
+, -, &, mod
- (unary)
=,/=, <, <=, >=, >
and
Lowest
or, xor
Associativity
Left to right
Show the order of evaluation of the following expressions by parenthe-
sizing all subexpressions and placing a superscript on the right parenthe-
sis to indicate order. For example, for the expression
a
+ b * c + d
the order of evaluation would be represented as
((а +
(b * c)')²
+ d) 3
а. а * b
1 + C
b. a
(b -
1) / с mod d
с. (а
b) / с &
(d
e / а - 3)
d. -a or с
d and e
е. а
> b хоr с or d <- 17
f. -а + b
10. Show the order of evaluation of the expressions of Problem 9, assuming
that there are no precedence rules and all operators associate right to left.
11. Write a BNF description of the precedence and associativity rules
defined for the expressions in Problem 9. Assume the only operands are
the names a,b,c,d, and e.
12. Using the grammar of Problem 11, draw parse trees for the expressions
of Problem 9.
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