Language: C++

using System;

namespace ALDS1_2_D
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = Console.ReadLine();
            int n = int.Parse(str);
            int[] A = new int[n];

            for (int i = 0; i < n; ++i)
            {
                str = Console.ReadLine();
                A[i] = int.Parse(str);
            }

            
            


            int cnt = 0;
            sellSort(A, n, ref cnt);
            Console.WriteLine("1");
            Console.WriteLine("1");
            Console.WriteLine("{0}", cnt);
            for(int i=0;i<n;++i)
            {
                Console.WriteLine("{0}", A[i]);
            }

        }

        static private void insertionSort(int[] A, int n, int g, ref int cnt)
        {
            for (int i = g; i < n; ++i)
            {
                int v = A[i];
                int j = i - g;
                while (A[j] > v)
                {
                    A[j + g] = A[j];
                    j = j - g;
                    cnt += 1;
                    if (j < 0)
                    {
                        break;
                    }
                }
                A[j + g] = v;
            }
        }

        static private void sellSort(int[] A,int n,ref int cnt)
        {
            int m = 1;
            int[] G = { 1 };
            for (int i = 0; i < m; ++i)
            {
                insertionSort(A, n, G[i], ref cnt);
            }
        }

    }
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:7:26: error: 'string' has not been declared
    7 |         static void Main(string[] args)
      |                          ^~~~~~
a.cc:7:35: error: expected ',' or '...' before 'args'
    7 |         static void Main(string[] args)
      |                                   ^~~~
a.cc:35:16: error: expected unqualified-id before 'private'
   35 |         static private void insertionSort(int[] A, int n, int g, ref int cnt)
      |                ^~~~~~~
a.cc:55:16: error: expected unqualified-id before 'private'
   55 |         static private void sellSort(int[] A,int n,ref int cnt)
      |                ^~~~~~~
a.cc:65:6: error: expected ';' after class definition
   65 |     }
      |      ^
      |      ;
a.cc: In static member function 'static void ALDS1_2_D::Program::Main(int*)':
a.cc:9:13: error: 'string' was not declared in this scope
    9 |             string str = Console.ReadLine();
      |             ^~~~~~
a.cc:10:21: error: expected primary-expression before 'int'
   10 |             int n = int.Parse(str);
      |                     ^~~
a.cc:11:16: error: structured binding declaration cannot have type 'int'
   11 |             int[] A = new int[n];
      |                ^~
a.cc:11:16: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
a.cc:11:16: error: empty structured binding declaration
a.cc:11:19: error: expected initializer before 'A'
   11 |             int[] A = new int[n];
      |                   ^
a.cc:15:17: error: 'str' was not declared in this scope; did you mean 'std'?
   15 |                 str = Console.ReadLine();
      |                 ^~~
      |                 std
a.cc:15:23: error: 'Console' was not declared in this scope
   15 |                 str = Console.ReadLine();
      |                       ^~~~~~~
a.cc:16:17: error: 'A' was not declared in this scope
   16 |                 A[i] = int.Parse(str);
      |                 ^
a.cc:16:24: error: expected primary-expression before 'int'
   16 |                 A[i] = int.Parse(str);
      |                        ^~~
a.cc:24:22: error: 'A' was not declared in this scope
   24 |             sellSort(A, n, ref cnt);
      |                      ^
a.cc:24:28: error: 'ref' was not declared in this scope
   24 |             sellSort(A, n, ref cnt);
      |                            ^~~
a.cc:24:13: error: 'sellSort' was not declared in this scope
   24 |             sellSort(A, n, ref cnt);
      |             ^~~~~~~~
a.cc:25:13: error: 'Console' was not declared in this scope
   25 |             Console.WriteLine("1");
      |             ^~~~~~~