Language: C++

#include <iostream>
#include <math.h>
#include <vector>
int main(){
  int N, K, Q;
  cin >> N >> K >> Q;
  vector<int> A(Q);
  for(int i = 0; i < Q; i++){
    cin >> A[i];
  }
  vector<int> B(N,K);
  for(int i = 0; i < Q; i++){
    for(int j = 0; j < N; j++){
      if(j != i && B[j] !=0){
        B[j]--;
      }
    }
  }
  for(int i =0; i < N; i++){
    if(B[i] ==0){
      cout <<"No" << endl;
    }
    else{
      cout << "Yes" << endl;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |   cin >> N >> K >> Q;
      |   ^~~
      |   std::cin
In file included 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:7:3: error: 'vector' was not declared in this scope
    7 |   vector<int> A(Q);
      |   ^~~~~~
a.cc:7:3: note: suggested alternatives:
In file included from /usr/include/c++/14/vector:66,
                 from a.cc:3:
/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:7:10: error: expected primary-expression before 'int'
    7 |   vector<int> A(Q);
      |          ^~~
a.cc:9:12: error: 'A' was not declared in this scope
    9 |     cin >> A[i];
      |            ^
a.cc:11:10: error: expected primary-expression before 'int'
   11 |   vector<int> B(N,K);
      |          ^~~
a.cc:14:20: error: 'B' was not declared in this scope
   14 |       if(j != i && B[j] !=0){
      |                    ^
a.cc:20:8: error: 'B' was not declared in this scope
   20 |     if(B[i] ==0){
      |        ^
a.cc:21:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   21 |       cout <<"No" << 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:21:22: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   21 |       cout <<"No" << endl;
      |                      ^~~~
      |                      std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:24:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   24 |       cout << "Yes" << 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:24:24: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   24 |       cout << "Yes" << endl;
      |                        ^~~~
      |                        std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~