Singapore GCE O-Level Computing Practice Questions - Singapore GCE O-Level Computing Exam

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Consider the following pseudocode implementing a single pass of Bubble Sort on an array `arr = [5, 2, 8, 1]` of length 4: FOR i ← 0 TO 2 DO IF arr[i] > arr[i+1] THEN temp ← arr[i] arr[i] ← arr[i+1] arr[i+1] ← temp ENDIF ENDFOR What is the state of `arr` after completing this single pass (i = 0 to 2)?

[2, 5, 1, 8] [2, 5, 8, 1] [1, 2, 5, 8] [5, 2, 1, 8]

Correct Answer:

[2, 5, 1, 8]

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