/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 vote151 views1 answer
Swift sf symbol uiimage size
Swift
3 votes145 views2 answers
Swift change button text
Swift
0 vote162 views1 answer
Convert string true to boolean swift
Swift
1 vote150 views1 answer
Stackoverflow get firbas analytics in ios
Swift
1 vote165 views1 answer
Porsche
Swift
0 vote218 views1 answer
String to double swift
Swift
0 vote154 views1 answer
How to present a uiview after an array of cards is empty swift
Swift
5 votes183 views2 answers
Swift math ceil
Swift
1 vote153 views1 answer
Replace character in swift
Swift
4 votes181 views3 answers
How to change background color swift
Swift