/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

1 vote354 views1 answer
How to call app delegate function in swift
Swift
0 vote337 views1 answer
Bind object
Swift
8 votes539 views1 answer
Taylor swift
Swift
1 vote351 views1 answer
Hex color extension swift
Swift
1 vote315 views1 answer
Swift temporary directory
Swift
1 vote353 views2 answers
Xcode execute code after when navigating back to screen
Swift
0 vote323 views2 answers
Float vs double in swift
Swift
1 vote316 views1 answer
Swift doc comments
Swift
0 vote334 views1 answer
Swift dispatch after
Swift
1 vote340 views1 answer
IOS 10.3.1 Simulator manually
Swift