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A shop sells a range of 80 different washing machines - Scottish Highers Computing Science - Question 11 - 2023
Question 11
A shop sells a range of 80 different washing machines. Sample data about the washing machines is shown below: Brand RefNo Maximum wash load (kg) Spin s... show full transcript
Worked Solution & Example Answer:A shop sells a range of 80 different washing machines - Scottish Highers Computing Science - Question 11 - 2023
Step 1
Define a suitable record data structure for the washing machine data above.
Answer
The record data structure can be defined as follows:
RECORD Feature IS (
STRING brand,
STRING refNo,
INTEGER maxWashLoad,
INTEGER spinSpeed,
REAL price,
INTEGER numberInStock
)```
This structure includes fields for the washing machine's brand, reference number, maximum wash load, spin speed, price, and number in stock.
Step 2
Declare the variable called machines which can store the details of the 80 washing machines.
Answer
The variable can be declared as follows:
DECLARE machines AS ARRAY OF Feature INITIALIZE(80)```
This will create an array named `machines` capable of storing data for 80 washing machines, using the previously defined `Feature` record structure.
Step 3
3. Find the price of the cheapest washing machine(s) if there is one that meets the entered criteria.
Answer
To find the price for the cheapest washing machine, the following steps can be used:
SET cheapestPrice TO 999999
SET found TO FALSE
FOR index FROM 0 TO 79 DO
IF machines[index].maxWashLoad >= smallestWash AND machines[index].spinSpeed >= slowestSpin THEN
IF machines[index].price < cheapestPrice THEN
SET cheapestPrice TO machines[index].price
SET found TO TRUE
END IF
END IF
END FOR
Step 4
4. Display the price of the cheapest washing machine(s) that meets the entered criteria or a message stating 'No washing machine meets the criteria'.
Answer
To display the result, use the following code:
IF found THEN
OUTPUT 'The price of the cheapest washing machine is: ' + cheapestPrice
ELSE
OUTPUT 'No washing machine meets the criteria.'
END IF