Language: C++

#include <bits/stdc++.h>
using namespace st;
int main(){
  int N;
  cin>>N;
  vector<int> P(N);
  for(int i=0;i<N;i++){
    cin>>P.at(i);
  }
  int count = 0;
  int curMin = 300000;
  for(int i=0;i<N;i++){
    curMin = min(curMin,P.at(i));
    if(curMin==P.at(i)){
      count++;
    }
  }
  cout<<count<<endl;
  return 0;
}

Compiler output:
a.cc:2:17: error: 'st' is not a namespace-name
    2 | using namespace st;
      |                 ^~
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin>>N;
      |   ^~~
      |   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:6:3: error: 'vector' was not declared in this scope
    6 |   vector<int> P(N);
      |   ^~~~~~
a.cc:6:3: 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:6:10: error: expected primary-expression before 'int'
    6 |   vector<int> P(N);
      |          ^~~
a.cc:8:10: error: 'P' was not declared in this scope
    8 |     cin>>P.at(i);
      |          ^
a.cc:13:25: error: 'P' was not declared in this scope
   13 |     curMin = min(curMin,P.at(i));
      |                         ^
a.cc:13:14: error: 'min' was not declared in this scope; did you mean 'std::min'?
   13 |     curMin = min(curMin,P.at(i));
      |              ^~~
      |              std::min
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:18:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   18 |   cout<<count<<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:18:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   18 |   cout<<count<<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)
      |     ^~~~