Pearson pseudocode: arrays, subprograms and files

Arrays are indexed from 0. SET scores TO [12, 7, 19, 4] creates one; scores[2] is 19. LENGTH(scores) gives the number of items (LENGTH also works on strings).
A two-dimensional array is indexed [row, column]. If grid holds the rows [3, 8, 1] and [6, 2, 9], then grid[1, 2] is 9. (Python writes grid[1][2].)
SET scores TO [12, 7, 19, 4]
SET total TO 0
FOR index FROM 0 TO LENGTH(scores) - 1 DO
SET total TO total + scores[index]
END FOR
SEND total TO DISPLAY
This outputs 42: the loop runs from index 0 to LENGTH - 1.

A procedure carries out a task and does not return a value:
PROCEDURE showLine (symbol, size)
BEGIN PROCEDURE
SET line TO ''
REPEAT size TIMES
SET line TO line & symbol
END REPEAT
SEND line TO DISPLAY
END PROCEDURE

showLine ('-', 5)
Output: -----
A function returns a value with RETURN:
FUNCTION area (width, height)
BEGIN FUNCTION
SET result TO width * height
RETURN result
END FUNCTION

SEND area (4, 6) TO DISPLAY
Output: 24
The values in brackets are parameters. A subprogram is called by its name followed by the values to pass in.

FOR EACH name FROM names DO ... END FOREACH visits every item of an array.
RANDOM(n) gives a random whole number from 0 to n.
READ file record and WRITE file record read and write records in a file.
In the exam you can answer in any clear pseudocode or in Python, so translate as you read: