第四次学习

using System; using System.Collections;

namespace MyConsoleSpp1 {

internal class Program
{
    public static void Main(String[] args)
    {

        /* int i = 1;
         int n = Convert.ToInt32(Console.ReadLine());
         int sum = 0;
         while (i <= n)
         {
             sum += i;
             i++;
         }

         Console.WriteLine(sum);*/

        /*int i = 1;
        while (i <= 100)
        {
            i++;
            if (i % 2 == 0)
            {
                Console.WriteLine(i);
            }
        }*/

        /*  int n = Convert.ToInt32(Console.ReadLine());
          int count = 0;

          while ( n != 1) {
              count++;
              if (n % 2 == 1)
              {
                  n = 3 * n + 1;
                  Console.WriteLine(n);
              }
              else { 
                n = n / 2;
                  Console.WriteLine(n);
              }

          }
          Console.WriteLine("次数为："+ count);*/

        /*int n = Convert.ToInt32(Console.ReadLine());
        int i = 0;
        double average = 0;
        double sum = 0;
        while (i < n) { 
            sum += Convert.ToInt32(Console.ReadLine());
            i++;
        }

        average = sum / n;
        Console.WriteLine(average.ToString("0.00"));*/

        /*
        
        int n = Convert.ToInt32(Console.ReadLine());
        int m = Convert.ToInt32(Console.ReadLine());
        int sum = 0;
        if (n > m) {

            int temp = m;
            m = n;
            n = temp;
        }
        for (; n <= m; n++) {
            if (n % 17 == 0) {
                sum += n;
            }
        }

        Console.WriteLine(sum);*/

        /*            int a = Convert.ToInt32(Console.ReadLine());
                    int n = Convert.ToInt32(Console.ReadLine());
                    int temp = 1;
                    for (int i = 0; i < n; i++) {
                        temp *= a;
                    }

                    Console.WriteLine(temp);
        */

        /*double height = Convert.ToInt32(Console.ReadLine());
        double roadCount = 0;
        double rebound = 0;
        for (int i = 1; i <= 10; i++)
        {

            height /= 2;
            Console.WriteLine(height);
            roadCount += height * 3;
            if (i == 10 )
            {
                rebound = height;
                break;
            }

        }
        Console.WriteLine("第10次反弹{0},经过{1}",rebound,roadCount);*/






    }
}

}