answer.code: In member function ‘void node::init()’:
answer.code:17:21: error: no match for ‘operator>>’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘char*’)
   17 |                 cin >> (str + 1);
      |                 ~~~ ^~ ~~~~~~~~~
      |                 |           |
      |                 |           char*
      |                 std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/13/sstream:40,
                 from /usr/include/c++/13/complex:45,
                 from /usr/include/c++/13/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:127,
                 from answer.code:1:
/usr/include/c++/13/istream:325:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
  325 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/13/istream:325:7: note:   conversion of argument 1 would be ill-formed:
answer.code:17:29: error: cannot bind non-const lvalue reference of type ‘void*&’ to an rvalue of type ‘void*’
   17 |                 cin >> (str + 1);
      |                        ~~~~~^~~~
/usr/include/c++/13/istream:201:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
  201 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/13/istream:201:7: note:   conversion of argument 1 would be ill-formed:
answer.code:17:29: error: invalid conversion from ‘char*’ to ‘long long unsigned int’ [-fpermissive]
   17 |                 cin >> (str + 1);
      |                        ~~~~~^~~~
      |                             |
      |                             char*
answer.code:17:29: error: cannot bind rvalue ‘(long long unsigned int)(((char*)(&((node*)this)->node::str)) + 1)’ to ‘long long unsigned int&’
/usr/include/c++/13/istream:197:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
  197 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/13/istream:197:7: note:   conversion of argument 1 would be ill-formed:
answer.code:17:29: error: invalid conversion from ‘char*’ to ‘long long int’ [-fpermissive]
   17 |                 cin >> (str + 1);
      |                        ~~~~~^~~~
      |                             |
      |                             char*
answer.code:17:29: error: cannot bind rvalue ‘(long long int)(((char*)(&((node*)this)->node::str)) + 1)’ to ‘long long int&’
/usr/include/c++/13/istream:192:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/13/istream:192:7: note:   conversion of argument 1 would be ill-formed:
answer.code:17:29: error: invalid conversion from ‘char*’ to ‘long unsigned int’ [-fpermissive]
   17 |                 cin >> (str + 1);
      |                        ~~~~~^~~~
      |                             |
      |                             char*
answer.code:17:29: error: cannot bind rvalue ‘(long unsigned int)(((char*)(&((node*)this)->node::str)) + 1)’ to ‘long unsigned int&’
/usr/include/c++/13/istream:188:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/13/istream:188:7: note:   conversion of argument 1 would be ill-formed:
answer.code:17:29: error: invalid conversion from ‘char*’ to ‘long int’ [-fpermissive]
   17 |                 cin >> (str + 1);
      |                        ~~~~~^~~~
      |                             |
      |                             char*
answer.code:17:29: error: cannot bind rvalue ‘(long int)(((char*)(&((node*)this)->node::str)) + 1)’ to ‘long int&’
/usr/include/c++/13/istream:184:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/13/istream:184:7: note: ...