Say we are designing a new computer programming language that includes the operators @, #, $, and U. How would the expression w @ x # y $ z U a get evaluated under the following constraint? The precedence of # is higher than U, U is higher than @, and @ is higher than $ a. ((((w @ x) # y) $ z) U a) b. (w @ (x # (y $ (z U a)))) c. ((w @ (x # y)) $ (z U a)) d. (w @ x) # ((y $ z) U a) e. none of the above

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
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Say we are designing a new computer programming language that includes the operators @, #, $, and U. How would
the expression w @ x # y $ z U a get evaluated under the following constraint?
The precedence of # is higher than U, U is higher than @, and @ is higher than $
a. ((((w @ x) # y) $ z) U a)
b. (w @ (x # (y $ (z U a))))
c. ((w @ (x # y)) $ (z U a))
d. (w @ x) # ((y $ z) U a)
e. none of the above

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