Language: C++

#include <bits/stdc++.h>  using namespace std;
 int N, K; vector<int> d;  vector<vector<int>> A;
 void input() {  cin >> N >> K; d.resize(K);  A.resize(K, vector<int>());  for(int i = 0; i < K; i++) {  cin >> d[i];  A[i].resize(d[i]);  for(int j = 0; j < d[i]; j++) {  cin >> A[i][j];  }  }  }
 void solve() {  int ans = 0;  for(int i = 1; i <= N; i++) {  bool have = false;  for(auto v : A) { for(auto p : v) {  if(p == i) have = true;  }  }  if(!have) ans++;  }  cout << ans << endl;  }
 int main() {  input();  solve();

 return 0;  }


Compiler output:
a.cc:1:27: warning: extra tokens at end of #include directive
    1 | #include <bits/stdc++.h>  using namespace std;
      |                           ^~~~~
a.cc:2:12: error: 'vector' does not name a type
    2 |  int N, K; vector<int> d;  vector<vector<int>> A;
      |            ^~~~~~
a.cc:2:28: error: 'vector' does not name a type
    2 |  int N, K; vector<int> d;  vector<vector<int>> A;
      |                            ^~~~~~
a.cc: In function 'void input()':
a.cc:3:18: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    3 |  void input() {  cin >> N >> K; d.resize(K);  A.resize(K, vector<int>());  for(int i = 0; i < K; i++) {  cin >> d[i];  A[i].resize(d[i]);  for(int j = 0; j < d[i]; j++) {  cin >> A[i][j];  }  }  }
      |                  ^~~
      |                  std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:3:33: error: 'd' was not declared in this scope
    3 |  void input() {  cin >> N >> K; d.resize(K);  A.resize(K, vector<int>());  for(int i = 0; i < K; i++) {  cin >> d[i];  A[i].resize(d[i]);  for(int j = 0; j < d[i]; j++) {  cin >> A[i][j];  }  }  }
      |                                 ^
a.cc:3:47: error: 'A' was not declared in this scope
    3 |  void input() {  cin >> N >> K; d.resize(K);  A.resize(K, vector<int>());  for(int i = 0; i < K; i++) {  cin >> d[i];  A[i].resize(d[i]);  for(int j = 0; j < d[i]; j++) {  cin >> A[i][j];  }  }  }
      |                                               ^
a.cc:3:59: error: 'vector' was not declared in this scope
    3 |  void input() {  cin >> N >> K; d.resize(K);  A.resize(K, vector<int>());  for(int i = 0; i < K; i++) {  cin >> d[i];  A[i].resize(d[i]);  for(int j = 0; j < d[i]; j++) {  cin >> A[i][j];  }  }  }
      |                                                           ^~~~~~
a.cc:3:59: note: suggested alternatives:
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53:
/usr/include/c++/14/bits/stl_vector.h:428:11: note:   'std::vector'
  428 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
/usr/include/c++/14/vector:93:13: note:   'std::pmr::vector'
   93 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
a.cc:3:66: error: expected primary-expression before 'int'
    3 |  void input() {  cin >> N >> K; d.resize(K);  A.resize(K, vector<int>());  for(int i = 0; i < K; i++) {  cin >> d[i];  A[i].resize(d[i]);  for(int j = 0; j < d[i]; j++) {  cin >> A[i][j];  }  }  }
      |                                                                  ^~~
a.cc: In function 'void solve()':
a.cc:4:96: error: 'A' was not declared in this scope
    4 |  void solve() {  int ans = 0;  for(int i = 1; i <= N; i++) {  bool have = false;  for(auto v : A) { for(auto p : v) {  if(p == i) have = true;  }  }  if(!have) ans++;  }  cout << ans << endl;  }
      |                                                                                                ^
a.cc:4:172: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    4 |  void solve() {  int ans = 0;  for(int i = 1; i <= N; i++) {  bool have = false;  for(auto v : A) { for(auto p : v) {  if(p == i) have = true;  }  }  if(!have) ans++;  }  cout << ans << endl;  }
      |                                                                                                                                                                            ^~~~
      |                                                                                                                                                                            std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:4:187: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    4 |  void solve() {  int ans = 0;  for(int i = 1; i <= N; i++) {  bool have = false;  for(auto v : A) { for(auto p : v) {  if(p == i) have = true;  }  }  if(!have) ans++;  }  cout << ans << endl;  }
      |                                                                                                                                                                                           ^~~~
      |                                                                                                                                                                                           std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~