C# “贝格尔”编排法

protected void Page_Load(object sender, EventArgs e)
{
    List<int[]> list = new List<int[]>();
    List<int> teams = new List<int> { 1, 2, 3, 4, 5, 6, 7 };
    int[] array = teams.ToArray();            
    //参赛队数数量
    int initlen = array.Length;
    //比赛轮次
    int turns = initlen - 1;
    //如果为奇数，用0补空
    if (Convert.ToBoolean(initlen % 2))
    {
        teams.Add(0);
        turns = initlen;
    }
    list.Add(teams.ToArray());
    int max = teams[teams.Count - 1];
    //间隔数，计算公式为(n-4)/2+1
    int steps = initlen <= 4 ? 1 : (initlen - 4) / 2 + 1;

    List<int> parseList = teams;
    int temp = 0;
    for (int n = 0; n < turns; n++)
    {
        //移除空位
        bool isMax = parseList[0] == max ? true : false;
        parseList.RemoveAt(parseList[0] == max ? 0 : parseList.Count - 1);
        int[] tempArray = parseList.ToArray();
        int templen = tempArray.Length;
        int tempLen = isMax ? steps + 2 : steps;
        for (int i = 0; i < tempLen; i++)
        {
            //右位移
            temp = tempArray[templen - 1];
            for (int j = templen - 2; j >= 0; j--)
            {
                tempArray[j + 1] = tempArray[j];
            }
            tempArray[0] = temp;
        }
        //补空位
        string tempString = isMax ?
            string.Format("{0},{1}", string.Join(",", tempArray), max) :
            string.Format("{0},{1}", max, string.Join(",", tempArray));
        int[] parseArray = Array.ConvertAll<string, int>(tempString.Split(','), s => int.Parse(s));
        parseList = new List<int>(parseArray);
        list.Add(parseArray);                
    }
    //分队
    for (int i = 0; i < list.Count; i++)
    {
        Response.Write(string.Format("---------第{0}轮--------<br/>", i));
        int[] ar = list[i];
        int length = ar.Length / 2;
        int[] left = new int[length], right = new int[length];
        List<int> lll = new List<int>();
        for (int j = 0; j < length; j++)
        {
            left[j] = ar[j];
            right[j] = ar[j + length];
        }
        Array.Reverse(right);
        for (int j = 0; j < left.Length; j++)
        {
            Response.Write(string.Format("{0},{1}<br/>", left[j], right[j]));
        }
    }
}