Swift😎
Set Operations (accepted answer)\n\nclass Solution {\n    func findDifference(_ p: [Int], _ q: [Int]) -> [[Int]] {\n        [Set(p).subtracting(q), Set(q).subtr
**Set Operations (accepted answer)**\n```\nclass Solution {\n    func findDifference(_ p: [Int], _ q: [Int]) -> [[Int]] {\n        [Set(p).subtracting(q), Set(q).subtracting(p)].map(Array.init) \n    }\n}\n\n```
['Swift']