[Solved] Given two sets of integers:let set1: Set = [2, 4, 6, 8, 10] let set2:... What is the correct way to do this? | Swift

Swift - Collections

Given two sets of integers:

let set1: Set = [2, 4, 6, 8, 10]
let set2: Set = [1, 2, 3, 4, 5]

Write Swift code to find elements that are in either set but NOT in both (symmetric difference). What is the correct way to do this?

AAll of the above

Blet result = set1.symmetricDifference(set2)

Clet result = set1.subtracting(set2).union(set2.subtracting(set1))

Dlet result = set1.union(set2).subtracting(set1.intersection(set2))

Step-by-Step Solution

Solution:

Step 1: Understand symmetric difference
Symmetric difference means elements in either set but not in both.
Step 2: Analyze each option
let result = set1.symmetricDifference(set2) uses built-in symmetricDifference() method. let result = set1.union(set2).subtracting(set1.intersection(set2)) finds union then removes intersection, which equals symmetric difference. let result = set1.subtracting(set2).union(set2.subtracting(set1)) finds difference both ways then unions them, also symmetric difference.
Step 3: Confirm all options produce same result
All three approaches correctly compute symmetric difference.
Final Answer:
All of the above -> Option A
Quick Check:
Multiple ways to get symmetric difference [OK]

Quick Trick: Symmetric difference = union minus intersection or use built-in method [OK]

Common Mistakes:

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