Language: C++

#include<bits/stdc++.h>
usnig namespace std;
int main(){
  int n;
  cin>>n;
  
  if(n <= 104) cout<<0;
  else if(n <= 134) cout<<1;
  else if(n <= 164) cout<<2;
  else if(n <= 188) cout<<3;
  else if(n <= 194) cout<<4;
  else cout<<5;
  cout<<endl;
}

Compiler output:
a.cc:2:1: error: 'usnig' does not name a type
    2 | usnig namespace std;
      | ^~~~~
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:7:16: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |   if(n <= 104) cout<<0;
      |                ^~~~
      |                std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:8:21: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |   else if(n <= 134) cout<<1;
      |                     ^~~~
      |                     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:9:21: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |   else if(n <= 164) cout<<2;
      |                     ^~~~
      |                     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:10:21: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |   else if(n <= 188) cout<<3;
      |                     ^~~~
      |                     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:11:21: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   11 |   else if(n <= 194) cout<<4;
      |                     ^~~~
      |                     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:8: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |   else cout<<5;
      |        ^~~~
      |        std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:13:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |   cout<<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:13:9: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |   cout<<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)
      |     ^~~~