Passengers are counted as they go through the security barriers - Edexcel - GCSE Computer Science - Question 9 - 2020 - Paper 1

Initialize the counts array

SET counts TO [[2, 0], [8, 0], [5, 0], [4, 0], [1, 0], [3, 0], [6, 0], [7, 0]]

Declare the variable inBarrier

INTEGER inBarrier

Increment Function Create a function to increment the count for the barrier that sent the signal:

FUNCTION incrementBarrierCount(inBarrier)
    BOOLEAN found = false
    INTEGER index

Loop through the counts array Use a while loop to find the correct index:

index = 0
WHILE index < LENGTH(counts) AND NOT found DO
    IF counts[index][0] = inBarrier THEN
        found = true
    ELSE
        index = index + 1
    END IF
END WHILE

Increment the count If the barrier is found, increment the count:

IF found THEN
    counts[index][1] = counts[index][1] + 1
END IF

End Function End the incrementBarrierCount function to complete the program.