Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>

int main() {
  string s, t;
  
  cin >> s >> t;
  sort(s.begin(), s.end());
  sort(s.begin(), s.end(), greater<char>());
  
  if(s < t) cout << "Yes" << endl;
  else cout << "No" << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'string' was not declared in this scope
    7 |   string s, t;
      |   ^~~~~~
a.cc:7:3: note: suggested alternatives:
In file included from /usr/include/c++/14/iosfwd:41,
                 from /usr/include/c++/14/ios:40,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
In file included from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44:
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:9:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    9 |   cin >> s >> t;
      |   ^~~
      |   std::cin
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:9:10: error: 's' was not declared in this scope
    9 |   cin >> s >> t;
      |          ^
a.cc:9:15: error: 't' was not declared in this scope; did you mean 'tm'?
    9 |   cin >> s >> t;
      |               ^
      |               tm
a.cc:10:3: error: 'sort' was not declared in this scope; did you mean 'std::sort'?
   10 |   sort(s.begin(), s.end());
      |   ^~~~
      |   std::sort
In file included from /usr/include/c++/14/algorithm:86,
                 from a.cc:4:
/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:11:28: error: 'greater' was not declared in this scope; did you mean 'std::greater'?
   11 |   sort(s.begin(), s.end(), greater<char>());
      |                            ^~~~~~~
      |                            std::greater
In file included from /usr/include/c++/14/string:49:
/usr/include/c++/14/bits/stl_function.h:353:12: note: 'std::greater' declared here
  353 |     struct greater;
      |            ^~~~~~~
a.cc:11:36: error: expected primary-expression before 'char'
   11 |   sort(s.begin(), s.end(), greater<char>());
      |                                    ^~~~
a.cc:13:13: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |   if(s < t) 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:13:30: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |   if(s < t) 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:14:8: 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:14:24: 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)
      |     ^~~~