Question

Study the code segment below to see what it will output. Values of x and y will be displayed multiple times during the running of the program, and you might recognize a pattern. From the list of possible outputs listed two (2) are IMPOSSIBLE. Choose the two (2) outputs that are impossible for this code to produce.

Answer 1

Values of x and y will be displayed multiple times during the running of the program, and you might recognize a pattern.

The outputs that are impossible for this code to produce are :

• 0,0
• 2,4

Explanation :

The code can take in any outputs, but it will be impossible for this code to produce 0,0 and 2,4

x <- 0

REPEAT_UNTIL( x = 3 ){

y <- 0

x <- x+1

REPEAT_UNTIL ( y = 3 ){

y <- y+1

DISPLAY( x + ", " + y)

}

}

There will be an output when you input

• 1,1
• 2,1
• 2,2