Language: C++

#include<iostream>
#include<string>
using namespace sdt;
int main()
{
    string x;
    cin>>x;
    for(int i=0;i<x.length();i++)
    {
        if(x[i]='A'&&x[i+1]='C')cout<<"Yes"<<endl;,return 0;
    }
    cout<<"No"<<endl;
    return 0;
}

Compiler output:
a.cc:3:17: error: 'sdt' is not a namespace-name
    3 | using namespace sdt;
      |                 ^~~
a.cc: In function 'int main()':
a.cc:6:5: error: 'string' was not declared in this scope
    6 |     string x;
      |     ^~~~~~
a.cc:6:5: 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:7:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |     cin>>x;
      |     ^~~
      |     std::cin
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:10: error: 'x' was not declared in this scope
    7 |     cin>>x;
      |          ^
a.cc:10:33: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |         if(x[i]='A'&&x[i+1]='C')cout<<"Yes"<<endl;,return 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:10:46: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   10 |         if(x[i]='A'&&x[i+1]='C')cout<<"Yes"<<endl;,return 0;
      |                                              ^~~~
      |                                              std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:10:51: error: expected primary-expression before ',' token
   10 |         if(x[i]='A'&&x[i+1]='C')cout<<"Yes"<<endl;,return 0;
      |                                                   ^
a.cc:10:52: error: expected primary-expression before 'return'
   10 |         if(x[i]='A'&&x[i+1]='C')cout<<"Yes"<<endl;,return 0;
      |                                                    ^~~~~~
a.cc:12:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |     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:12:17: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   12 |     cout<<"No"<<endl;
      |                 ^~~~
      |                 std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~