C#约瑟夫问题图形界面化

约瑟夫环（约瑟夫问题）：已知n个人（以编号1，2，3…n分别表示）围坐在一张圆桌周围。从编号为k的人开始报数，数到m的那个人出列；他的下一个人又从1开始报数，数到m的那个人又出列；依此规律重复下去，直到圆桌周围的人全部出列。具有完整的图形用户界面，可以配置程序的运行参数，如：n的值，k的值、m的值、执行动画的速度等；执行过程可以暂停/继续；算法执行的结果（包括中间结果）可以持久化（以自定义数据格式保存到文件中；可从文件中读取数据，实时图形化显示执行结果；
约瑟夫实现参考代码： https://blog.youkuaiyun.com/Czhenya/article/details/78230368
文件导入导出也有参考，但忘了参考哪一个了，找到后再附上源码链接
代码如下
public void start_Click(object sender, EventArgs e)

   {        
        //相关参数不能为空                  
        if (textBox1.Text == "" || textBox2.Text == "" || textBox3.Text == "")
        {
            MessageBox.Show("请输入相关参数");//用户提示             
            return ;
        }    
        int n = Convert.ToInt32(textBox1.Text);//获取人数n
        int m = Convert.ToInt32(textBox2.Text);//获取计数m
        List<int> xData = new List<int>();//图形X数据
        List<double> yData = new List<double>();//图形Y数据

        for (int k = 0; k <n; k++)
        {
            xData.Add(k);
            yData.Add(100.0/n);//根据总人数不同改变份数
        }
        chart1.Series[0].Points.DataBindXY(xData, yData);          
        YueSeFuHuan(n,m);//调用约瑟夫函数
        timer1.Enabled = true;//打开定时器          
    }
    //暂停
    private void pause_Click(object sender, EventArgs e)
    {         
        timer1.Enabled = false;
    }
    //继续
    private void continue_Click(object sender, EventArgs e)
    {
        timer1.Enabled = true;
    }
    /// 约瑟夫环问题求解方法       
    int[] eliminates = new int[100];
    public void YueSeFuHuan(int sum, int num)//sum总人数num第几个人出局 
    {
        int c = Convert.ToInt32(textBox3.Text);//开始位置
        int[] arr = new int[sum];
        for (int i = 0; i < sum; i++)
        {
            arr[i] = 1;
        }
        int count = 0;//计数器
        int arrlength = arr.Length;//剩余人数
                  
        List<int> eliminates1 = new List<int>(sum);

        while (arrlength >= 1)
        {
            for (int i = 0; i < arr.Length; i++)
            {
                if (arr[i] == 1)
                {
                    count++;
                    if (count == num)//如果是规定（第几个人出局）
                    {
                        arr[i] = 0;//第i个人出局
                        arrlength--;
                        count = 0;
                        if (i + c < sum)
                            eliminates1.Add(i + c);//第i+1个人出局，他的编号是i                          
                        else
                        eliminates1.Add(i + c - sum);
                        eliminates = eliminates1.ToArray();
                    }
                }
            }              
        }
    }
    int j = 0;
    private void timer1_Tick(object sender, EventArgs e)
    {
        dataGridView1.Rows.Add();
        dataGridView1.Rows[j].Cells[1].Value = eliminates[j];//淘汰者
        dataGridView1.Rows[j].Cells[0].Value = j + 1;//轮数
        foreach (DataPoint point in this.chart1.Series[0].Points)
            if (point.XValue == eliminates[j])
                point.Color = Color.White;
        j++;
        if (j == eliminates.Length)
        {
            timer1.Enabled = false;
            MessageBox.Show("全部淘汰");
        }
        if (comboBox1.Text == "较快")
        { timer1.Interval = 500; }
        if (comboBox1.Text == "正常")
        { timer1.Interval = 1000; }
        if (comboBox1.Text == "较慢")
        { timer1.Interval = 2000; }

    }

    private void dataGridView1_RowStateChanged(object sender, DataGridViewRowStateChangedEventArgs e)
    {
        //显示行号
        e.Row.HeaderCell.Value = string.Format("{0}", e.Row.Index + 1);
        //让滚动条始终处于最下方显示最新数据
        dataGridView1.FirstDisplayedScrollingRowIndex = dataGridView1.Rows.Count -1;
    }

    private void quit_Click(object sender, EventArgs e)
    {
        Application.Exit();
    }

        private void output_Click(object sender, EventArgs e)
        {            
          string strPath = "D://data.txt";//路径
          //设置文件流，建立连接
          System.IO.FileStream fileStream = new System.IO.FileStream(strPath, FileMode.OpenOrCreate);
          StreamWriter streamWriter = new StreamWriter(fileStream, System.Text.Encoding.Unicode);
          StringBuilder strBuilder = new StringBuilder();
        try
         {
            for (int i = 0; i < dataGridView1.Rows.Count; i++)//遍历所有行
            {
                strBuilder = new StringBuilder();
                for (int j = 0; j < dataGridView1.Columns.Count; j++)//遍历所有列
                {
                   strBuilder.Append(dataGridView1.Rows[i].Cells[j].Value.ToString() + " ");//空格连接
                }
                strBuilder.Remove(strBuilder.Length - 1, 1);
                streamWriter.WriteLine(strBuilder.ToString());
            }
         }
        catch (Exception ex)
          {
            string strErrorMessage = ex.Message;//捕捉异常
          }
        finally
          {
            //关闭文件流
            streamWriter.Close();
            fileStream.Close();
          }
        MessageBox.Show("导出成功!", "提示", MessageBoxButtons.OK);//用户提示           
       }

    private void input_Click(object sender, EventArgs e)
    {           
        //新建一个datatable用于保存读入数据
        //DataTable dt = new DataTable();
        //dt.Columns.Add("轮数", typeof(string));
        //dt.Columns.Add("淘汰者", typeof(string));          

        //读入文件
        string strPath = "D://data.txt";
        StreamReader sr = new StreamReader(strPath , Encoding.Default);
        while (!sr.EndOfStream)
        {
            string[] items = sr.ReadLine().Split(' ');
            Int32 a= Convert.ToInt32(items[0]);
            Int32 b = Convert.ToInt32(items[1]);          
            dataGridView1.Rows.Add(a,b);               
        }
       
    }