Counting Sort 1

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    Swift

    func countingSort(arr: [Int]) -> [Int] {
        // Write your code here
        let maxNumber = arr.max()
        var array: [Int] = Array.init(repeating: 0, count: arr.count)
        for item in arr {
            array[item] = array[item] + 1
        }
    
       return Array(array[0..<100])
    }