public static List<int> cutTheSticks(List<int> arr)
    {
        List<int> stickCut = new List<int>();

        stickCut.Add(arr.Count);

        arr.Sort();

        while (arr.Count > 0)
        {
            int min = arr[0];
            for (int i = 0; i < arr.Count; i++)
            {
                arr[i] = arr[i] - min;
            }
            arr.RemoveAll(x => x == 0);
            stickCut.Add(arr.Count);
        }
        stickCut.RemoveAt(stickCut.Count - 1);
        return stickCut;

    }