Language: C++

#include <bits/stdc++.h>
using namespase std;

int main(){
  int n;
  cin>>n;
  vector<char> v(n);
  for(int i=0;i<n;i++) cin>>v[i];
  sort(v.begin(),v.end());
  if(n%2==0){
    int cent=n/2;
    if(v[cent-1]=='R'&&v[cent]=='R') cout<<"Yes"<<endl;
    else if(v[cent-1]=='R'&&v[cent]=='B') cout<<"Yes"<<endl;
    else cout<<"No"<<endl;
  }
  else {
    if(v[cent]=='R') cout<<"Yes"<<endl;
    else cout<<"No"<<endl;
  }
  return 0;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namespase'
    2 | using namespase std;
      |       ^~~~~~~~~
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;
      |   ^~~
      |   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:7:3: error: 'vector' was not declared in this scope
    7 |   vector<char> v(n);
      |   ^~~~~~
a.cc:7:3: 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:7:10: error: expected primary-expression before 'char'
    7 |   vector<char> v(n);
      |          ^~~~
a.cc:8:29: error: 'v' was not declared in this scope
    8 |   for(int i=0;i<n;i++) cin>>v[i];
      |                             ^
a.cc:9:8: error: 'v' was not declared in this scope
    9 |   sort(v.begin(),v.end());
      |        ^
a.cc:9:3: error: 'sort' was not declared in this scope; did you mean 'std::sort'?
    9 |   sort(v.begin(),v.end());
      |   ^~~~
      |   std::sort
In file included from /usr/include/c++/14/algorithm:86,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:296:1: note: 'std::sort' declared here
  296 | sort(_ExecutionPolicy&& __exec, _RandomAccessIterator __first, _RandomAccessIterator __last);
      | ^~~~
a.cc:12:38: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |     if(v[cent-1]=='R'&&v[cent]=='R') 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:12:51: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   12 |     if(v[cent-1]=='R'&&v[cent]=='R') cout<<"Yes"<<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)
      |     ^~~~
a.cc:13:43: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |     else if(v[cent-1]=='R'&&v[cent]=='B') 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:13:56: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |     else if(v[cent-1]=='R'&&v[cent]=='B') cout<<"Yes"<<endl;
      |                                                        ^~~~
      |                                                        std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:14:10: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   14 |     else 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:14:22: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   14 |     else cout<<"No"<<endl;
      |                      ^~~~
      |                      std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:17:10: error: 'cent' was not declared in this scope
   17 |     if(v[cent]=='R') cout<<"Yes"<<endl;
      |          ^~~~
a.cc:17:22: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   17 |     if(v[cent]=='R') 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:17:35: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   17 |     if(v[cent]=='R') cout<<"Yes"<<endl;
      |                                   ^~~~
      |                                   std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:18:10: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   18 |     else 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:18:22: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   18 |     else cout<<"No"<<endl;
      |                      ^~~~
      |                      std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~