[Unity3d] 1부터 199 사이 1이 몇 번들어가는가? (C# )

void findone()
    {
        int total = 0;
        int[] arr = new int[199];
        string string_number;

        for (int k = 0; k < arr.Length; k++)
        {
            if (k == arr.Length) arr[k - 1] = k;
            else arr[k] = k + 1;

        }

        for (int i = 0; i < arr.Length; i++)
        {
            string_number = arr[i].ToString();
            for (int j = 0; j < string_number.Length; j++)
            {
                if (string_number[j].ToString() == "1") total += 1;

            }
        }

        Debug.Log("total : " + total);
    }