[Solved] What will be printed by this Swift code?let setX: Set = [10, 20, 30, 40] let setY: Set = [30, 40, 50, 60] let diff = setX.subtracting(setY) print(diff.sorted()) | Swift

Swift - Collections

What will be printed by this Swift code?

let setX: Set = [10, 20, 30, 40]
let setY: Set = [30, 40, 50, 60]
let diff = setX.subtracting(setY)
print(diff.sorted())

A[10, 20]

B[30, 40]

C[50, 60]

D[10, 20, 30, 40]

Step-by-Step Solution

Solution:

Step 1: Calculate difference setX subtracting setY
Elements in setX not in setY are 10 and 20.
Step 2: Sort the difference
Sorting gives [10, 20].
Final Answer:
[10, 20] -> Option A
Quick Check:
Difference = elements only in first set [OK]

Quick Trick: subtracting() removes elements found in second set [OK]

Common Mistakes:

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