Pseudocode - Arrays

Which of the labels show the array index?

• A

• B

• C

Which index is label C pointing to?

• 7

• 8

• 9

Which of the labels points to the representation of a memory address?

• A

• B

• C

What does the image above show?

• An array

• A 2D array

• An IF statement

• No idea!

Which of the labels points to the index {r1, c3}?

• A

• B

• C

• D

Which of the labels points to the 'rows' arrow?

• A

• B

• C

• D

Which of the following is the correct pseudocode to read (and print) all elements from an array?

• FOR i = 1 TO LENGTH(array)

  variable <-- array[i]

  OUTPUT: array[i]

  ENDFOR

• FOR i = 1 TO LENGTH(array)

  variable <-- array[i]

  OUTPUT: variable

  ENDFOR

• FOR i = 1 TO LENGTH(array)

  array[i] <-- variable

  OUTPUT: variable

  ENDFOR

Fill in the blanks:

"An array is a series of memory _________ that are referred to by their _____ and the ‘collection’ name."

• addresses

• index

• elements

• locations

Which element index is the 'X' in, in the array above?

• [c3,r2]

• [r3,c2]

• [c2,r1]

TRUE/FALSE:

"An array is a much more efficient way to store data if you need to refer to multiple data using the same reference."

• TRUE

• FALSE