Computer Science · May / June 2022 · Paper 22 · Question 4
0478
As printed in the paper
The question as text
This algorithm checks the temperature of hot food being served to customers. START Counter 0 ounter Counter + 1 Error ((Hot + Cold) / Counter) * 100 Hot 0 Cold 0 Serve 0 Serve Serve + 1 INPUT Temp OUTPUT Error OUTPUT "Too Cold" OUTPUT "Too Hot" Is Temp = –1? Is Temp > 86? Is Temp < 63? END Hot Hot + 1 Cold Cold + 1 Yes No No No Yes Yes
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4(a)[7]
One mark for each correct column
Counter
Hot
Cold
Serve
Temp
Error
OUTPUT
0
0
0
0
1
1
75
2
2
78
3
3
84
4
1
87
Too Hot
5
2
91
Too Hot
6
4
80
7
5
75
8
6
70
9
7
65
10
1
62
Too Cold
-1
30
30
4(b)[1]
include a message to explain the value output / e. g. “The percentage of meals not served” //outputting Hot, Cold and Serve
4(c)[1]
updating the Serve variable // Serve ← Serve + 1
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