answer.code: In function ‘void solve()’:
answer.code:10:13: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} [-Wformat=]
   10 |     scanf("%s",s);
      |            ~^
      |             |
      |             char*
answer.code: At global scope:
answer.code:67:1: error: expected unqualified-id before ‘-’ token
   67 | -
      | ^
answer.code: In function ‘void solve()’:
answer.code:10:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   10 |     scanf("%s",s);
      |     ~~~~~^~~~~~~~