Language: C++

#include <bits/stdc++.h>
using namespace std;
int max(int n, vector<int> p()){
  int x=p.at(0);
  for(int i=0; i < n; i++){
    if(p.at(i) > x) x=p.at(i);
  }
}
  
int main(){
  int n,k,q;
  cin >> n >> k >> q;
  int a[q];
  for(int i=0; i < q; i++) cin >> a[i];
  vector<int> p(n);
  for(int i=0; i < n; i++){
    p[i] = k;
  }
  for(int i=0; i < q; i++){
    p[a[q]]++;
  }
  int x = max(n, p);
  for(int i=0; i < q; i++){
    if(x-p[i] < k) cout << "Yes" << endl;
    else cout << "No" << endl;
  }
}
    

Compiler output:
a.cc: In function 'int max(int, std::vector<int> (*)())':
a.cc:4:11: error: request for member 'at' in 'p', which is of non-class type 'std::vector<int> (*)()'
    4 |   int x=p.at(0);
      |           ^~
a.cc:6:10: error: request for member 'at' in 'p', which is of non-class type 'std::vector<int> (*)()'
    6 |     if(p.at(i) > x) x=p.at(i);
      |          ^~
a.cc:6:25: error: request for member 'at' in 'p', which is of non-class type 'std::vector<int> (*)()'
    6 |     if(p.at(i) > x) x=p.at(i);
      |                         ^~
a.cc:8:1: warning: no return statement in function returning non-void [-Wreturn-type]
    8 | }
      | ^
a.cc: In function 'int main()':
a.cc:22:14: error: no matching function for call to 'max(int&, std::vector<int>&)'
   22 |   int x = max(n, p);
      |           ~~~^~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:22:14: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::vector<int>')
   22 |   int x = max(n, p);
      |           ~~~^~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:22:14: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   22 |   int x = max(n, p);
      |           ~~~^~~~~~
a.cc:3:5: note: candidate: 'int max(int, std::vector<int> (*)())'
    3 | int max(int n, vector<int> p()){
      |     ^~~
a.cc:3:28: note:   no known conversion for argument 2 from 'std::vector<int>' to 'std::vector<int> (*)()'
    3 | int max(int n, vector<int> p()){
      |                ~~~~~~~~~~~~^~~