/in/foo.cc: In function 'int judge(std::__cxx11::string, std::__cxx11::string, std::__cxx11::string)':
/in/foo.cc:6:24: error: 'n' was not declared in this scope
     for(int i = 0; i < n; i++)
                        ^
/in/foo.cc:16:1: error: a function-definition is not allowed here before '{' token
 {
 ^
/in/foo.cc:24:1: error: expected '}' at end of input
 }
 ^