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:1:26: warning: extra tokens at end of #include directive
    1 | #include <bits/stdc++.h> using namespace std;
      |                          ^~~~~
a.cc:3:1: error: 'vector' does not name a type
    3 | vector<int> d; vector<vector<int>> A;
      | ^~~~~~
a.cc:3:16: error: 'vector' does not name a type
    3 | vector<int> d; vector<vector<int>> A;
      |                ^~~~~~
a.cc: In function 'void input()':
a.cc:5:1: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 | cin >> N >> K;
      | ^~~
      | 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:6:1: error: 'd' was not declared in this scope
    6 | d.resize(K);
      | ^
a.cc:7:1: error: 'A' was not declared in this scope
    7 | A.resize(K, vector<int>()); for(int i = 0; i < K; i++) {
      | ^
a.cc:7:13: error: 'vector' was not declared in this scope
    7 | A.resize(K, vector<int>()); for(int i = 0; i < K; i++) {
      |             ^~~~~~
a.cc:7:13: 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:7:20: error: expected primary-expression before 'int'
    7 | A.resize(K, vector<int>()); for(int i = 0; i < K; i++) {
      |                    ^~~
a.cc: At global scope:
a.cc:9:1: error: 'cin' does not name a type
    9 | cin >> d[i];
      | ^~~
a.cc:10:1: error: 'A' does not name a type
   10 | A[i].resize(d[i]);
      | ^
a.cc:11:1: error: expected unqualified-id before 'for'
   11 | for(int j = 0; j < d[i]; j++) {
      | ^~~
a.cc:11:16: error: 'j' does not name a type
   11 | for(int j = 0; j < d[i]; j++) {
      |                ^
a.cc:11:26: error: 'j' does not name a type
   11 | for(int j = 0; j < d[i]; j++) {
      |                          ^
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
a.cc:14:1: error: expected declaration before '}' token
   14 | }
      | ^
a.cc: In function 'void solve()':
a.cc:16:63: error: 'A' was not declared in this scope
   16 | for(int i = 1; i <= N; i++) { bool have = false; for(auto v : A) {
      |                                                               ^
a.cc:21:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   21 | 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:21:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   21 | 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)
      |     ^~~~