Suppose there are three variables X, Y and Z with these types: X: integer that is divisible by 2 Y: integer that is divisible by 4 Z: integer For each of the following assignments, knowing nothing about the values of the variables except their types, answer whether a language system can tell before running the program whether the assignment is safe? Why or why not? a. X: Y b. X: = Z C. Y: Y + 1
Suppose there are three variables X, Y and Z with these types: X: integer that is divisible by 2 Y: integer that is divisible by 4 Z: integer For each of the following assignments, knowing nothing about the values of the variables except their types, answer whether a language system can tell before running the program whether the assignment is safe? Why or why not? a. X: Y b. X: = Z C. Y: Y + 1
Chapter2: Using Data
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![Suppose there are three variables X, Y and Z with these types:
X: integer that is divisible by 2
Y: integer that is divisible by 4
Z: integer
For each of the following assignments, knowing nothing about the values of the
variables except their types, answer whether a language system can tell before running the program whether the
assignment is safe? Why or why not?
a. X: = Y
b. X: = Z
c. Y :=Y + 1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffeb819b1-8590-4eac-9deb-56a4d1064bfe%2F6f4381e9-37d0-4b6d-89aa-5bd6c3c9b6ce%2F8998its_processed.png&w=3840&q=75)
Transcribed Image Text:Suppose there are three variables X, Y and Z with these types:
X: integer that is divisible by 2
Y: integer that is divisible by 4
Z: integer
For each of the following assignments, knowing nothing about the values of the
variables except their types, answer whether a language system can tell before running the program whether the
assignment is safe? Why or why not?
a. X: = Y
b. X: = Z
c. Y :=Y + 1
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