/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 vote125 views1 answer
How to clear text file swift
Swift
4 votes170 views2 answers
Swift change navigation bar color
Swift
1 vote81 views1 answer
Swift convert string to ns muteable string
Swift
2 votes135 views2 answers
Set in swift
Swift
1 vote132 views1 answer
Add UIToolBar to all keyboards
Swift
0 vote159 views1 answer
Remove and element from array firebase swift 5
Swift
0 vote86 views1 answer
Imageview resize image to fit swift
Swift
1 vote152 views1 answer
Disable swipe to delete swift
Swift
2 votes120 views2 answers
Swift func for constraint
Swift
0 vote154 views1 answer
Swift weekday component values
Swift