Photo AI
Figure 9 shows an algorithm, represented in pseudo-code, to display students' test scores - AQA - GCSE Computer Science - Question 10 - 2023 - Paper 1
Question 10
Figure 9 shows an algorithm, represented in pseudo-code, to display students' test scores. The algorithm does not work as expected and the teacher wants to find the ... show full transcript
Worked Solution & Example Answer:Figure 9 shows an algorithm, represented in pseudo-code, to display students' test scores - AQA - GCSE Computer Science - Question 10 - 2023 - Paper 1
Step 1
Complete the trace table for the algorithm shown in Figure 9
Answer
Trace Table Completion
| count | i | person | j | result |
|---|---|---|---|---|
| 0 | 0 | Natalie | 0 | 78 |
| 1 | 0 | Natalie | 1 | 81 |
| 2 | 0 | Natalie | 2 | 72 |
| 3 | 1 | Alex | 0 | 27 |
| 4 | 1 | Alex | 1 | 51 |
| 5 | 1 | Alex | 2 | 54 |
| 6 | 2 | Roshana | 0 | 52 |
| 7 | 2 | Roshana | 1 | 55 |
| 8 | 2 | Roshana | 2 | 59 |
Correction to the Error
To correct the algorithm in Figure 9, the appropriate change would be:
- D Change line number 10 to: result ← scores[j * 3 + i]. This will ensure that the correct scores are being accessed based on the current index.