/Swift/Most frequent element in array swift

Most frequent element in array swift

func mostFrequent(array: [Int]) -> (value: Int, count: Int)? {
    var counts = [Int: Int]()

    array.forEach { counts[$0] = (counts[$0] ?? 0) + 1 }

    if let (value, count) = counts.max(by: {$0.1 < $1.1}) {
        return (value, count)
    }

    // array was empty
    return nil
}

if let result = mostFrequent(array: [1, 3, 2, 1, 1, 4, 5]) {
    print("\(result.value) occurs \(result.count) times")    
}

-1

Source: stackoverflow.com

Similar codes

0 vote116 views1 answer
Set font uilabel swift
Swift
1 vote180 views2 answers
Swift set constraint programmatically
Swift
0 vote120 views2 answers
How to set the center in view in swift
Swift
1 vote129 views1 answer
Run a function only once swift
Swift
1 vote107 views1 answer
Swift convert base64 string to data
Swift
0 vote115 views1 answer
Int in swift
Swift
0 vote102 views2 answers
Portal
Swift
1 vote120 views1 answer
Swift convert decimal to string
Swift
0 vote100 views1 answer
Swift animate add subview
Swift
0 vote120 views1 answer
Abstract class in swift
Swift