Question

How to check whether an array is subset of another array in Swift

Answer 1

import Foundation

func isSubset(_ arr1: [Int], _ arr2: [Int]) -> Bool {
    for item in arr2 {
        if !arr1.contains(item) {
            return false
        }
    }
    
    return true
}

let arr1 = [5, 1, 8, 12, 40, 7, 9, 100]
let arr2 = [8, 40, 9, 1]

if isSubset(arr1, arr2) {
    print("yes")
} else {
    print("no")
}



/*
run:

yes

*/

 

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