GCSE Edexcel Computer Science Designing, Creating & Refining Algorithms: The airport has two runways. Eac

Question

The airport has two runways. Each runway has a queue of planes waiting to take off. Only five planes can be queued for each runway. Other planes wait in a queue until a place is free. When a plane leaves the gate, its details are added to a runway queue.

This process is controlled by a computer program.

Here is an algorithm for the process of adding planes to the runway queues.

```
SET runway[0] TO ["", "", "", "", ""]
SET index[0] TO 0
SET index[1] TO 0
SET status TO "Green" # Can be red, amber, green
SET proceed TO false

planeQueue

BEGIN FUNCTION

BOOLEAN status
SET status TO false
IF (pRunway >= 1) THEN
    IF (index1 < 5) THEN
        SET runway[index1][pFlight]
        SET index1 TO index1 + 1
        SET status TO true
    END IF
ELSEIF (pRunway = 2) THEN
    IF (index2 < 5) THEN
        SET runway[index2][pFlight]
        SET index2 TO index2 + 1
        SET status TO true
    END IF
END IF
RETURN status
END FUNCTION

```

The airport has two runways - Edexcel - GCSE Computer Science - Question 8 - 2020 - Paper 1

Worked Solution & Example Answer:The airport has two runways - Edexcel - GCSE Computer Science - Question 8 - 2020 - Paper 1

a) Identify the parameters of planeQueue function

b) Explain the return value of the planeQueue function

c) Describe the invocation in line 35

Join the GCSE students using SimpleStudy...

Other GCSE Computer Science topics to explore