An algorithm is represented by the following pseudo-code, which processes a series of altitude measurements (in metres) recorded by an autonomous drone:
1 altitudes[0] ← 340.5
2 altitudes[1] ← 512.0
3 altitudes[2] ← 128.3
4 altitudes[3] ← 410.1
5 FOR p ← 0 TO 2
6 FOR q ← 0 TO 2
7 IF altitudes[q] < altitudes[q + 1] THEN
8 temp ← altitudes[q]
9 altitudes[q] ← altitudes[q + 1]
10 altitudes[q + 1] ← temp
11 ENDIF
12 ENDFOR
13 ENDFOR
State the purpose of this algorithm.
Practise AQA GCSE Computer Science Sorting algorithms with exam-style questions for GCSE Computer Science. 62 questions, matched to the AQA GCSE Computer Science (8525) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.