Language: C++

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp87 {
    class Program {
        static void Main(string[] args) {
            var st = Console.ReadLine().Split().Select(int.Parse).ToArray();
            int N = st[0];
            int M = st[1];

            var k = new int[M];

            var s = new int[M][];
            for (int i = 0; i < M; i++) {
                var x = Console.ReadLine().Split().Select(int.Parse).ToArray();
                k[i] = x[0];
                s[i] = new int[k[i]];
                for (int j = 0; j < k[i]; j++) {
                    s[i][j] = x[j + 1] - 1;
                }
            }

            var p = Console.ReadLine().Split().Select(int.Parse).ToArray();

            int ans = 0;
            int cnt = 0;

            for (int bit = 0; bit < (1 << N); bit++) {
                for (int lb = 0; lb < M; lb++) {
                    cnt = 0;
                    foreach(var element in s[lb]) {
                        if ((bit & (1 << element)) != 0) {
                            cnt++;
                        }
                    }

                    if (cnt % 2 == p[lb]) {
                        //OKなので何もせずスルーする
                    } else {
                        goto skip;
                    }
                }
                ans++;

                skip:;
            }

            Console.WriteLine(ans);
        }
    }
}


Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:7: error: expected nested-name-specifier before 'System'
    2 | using System.Collections.Generic;
      |       ^~~~~~
a.cc:3:7: error: expected nested-name-specifier before 'System'
    3 | using System.Linq;
      |       ^~~~~~
a.cc:4:7: error: expected nested-name-specifier before 'System'
    4 | using System.Text;
      |       ^~~~~~
a.cc:5:7: error: expected nested-name-specifier before 'System'
    5 | using System.Threading.Tasks;
      |       ^~~~~~
a.cc:9:26: error: 'string' has not been declared
    9 |         static void Main(string[] args) {
      |                          ^~~~~~
a.cc:9:35: error: expected ',' or '...' before 'args'
    9 |         static void Main(string[] args) {
      |                                   ^~~~
a.cc:53:6: error: expected ';' after class definition
   53 |     }
      |      ^
      |      ;
a.cc: In static member function 'static void ConsoleApp87::Program::Main(int*)':
a.cc:10:13: error: 'var' was not declared in this scope
   10 |             var st = Console.ReadLine().Split().Select(int.Parse).ToArray();
      |             ^~~
a.cc:11:21: error: 'st' was not declared in this scope; did you mean 'std'?
   11 |             int N = st[0];
      |                     ^~
      |                     std
a.cc:14:17: error: expected ';' before 'k'
   14 |             var k = new int[M];
      |                 ^
a.cc:16:17: error: expected ';' before 's'
   16 |             var s = new int[M][];
      |                 ^
a.cc:18:21: error: expected ';' before 'x'
   18 |                 var x = Console.ReadLine().Split().Select(int.Parse).ToArray();
      |                     ^
a.cc:19:17: error: 'k' was not declared in this scope
   19 |                 k[i] = x[0];
      |                 ^
a.cc:19:24: error: 'x' was not declared in this scope
   19 |                 k[i] = x[0];
      |                        ^
a.cc:20:17: error: 's' was not declared in this scope
   20 |                 s[i] = new int[k[i]];
      |                 ^
a.cc:26:17: error: expected ';' before 'p'
   26 |             var p = Console.ReadLine().Split().Select(int.Parse).ToArray();
      |                 ^
a.cc:34:33: error: expected ')' before 'element'
   34 |                     foreach(var element in s[lb]) {
      |                                 ^~~~~~~
a.cc:34:28: note: to match this '('
   34 |                     foreach(var element in s[lb]) {
      |                            ^
a.cc:34:21: error: 'foreach' was not declared in this scope
   34 |                     foreach(var element in s[lb]) {
      |                     ^~~~~~~
a.cc:40:36: error: 'p' was not declared in this scope
   40 |                     if (cnt % 2 == p[lb]) {
      |                                    ^
a.cc:51:13: error: 'Console' was not declared in this scope
   51 |             Console.WriteLine(ans);
      |             ^~~~~~~