Computer Science · May / June 2025 · Paper 22 · Question 4

To check that the value entered has not changed on input.

One mark per mark point, max six

MP1 At least one appropriate working loop

MP2 First inputs of numbers all stored in array Numbers

MP3 Correct second input made for each number

MP4 Working selection statement to compare first and second inputs one at a time

MP5 If numbers don’t match, appropriate output, including both values input and a message requiring re-input

MP6 New input stored in current array location (replacing original input) MP7 Final output confirming completion, outside loop.

For example,

// variable and array declarations or initialisations // are not required for this question

FOR Index ← 1 TO 10

INPUT Numbers[Index]

NEXT Index

FOR Index ← 1 TO 10

INPUT CheckNumber

IF CheckNumber <> Numbers[Index]

THEN

OUTPUT CheckNumber, " and ", Numbers[Index], " do not match. Please re-enter the number. " INPUT Numbers[Index]

ENDIF

NEXT Index

OUTPUT "The check has been completed."