/in/foo.cc: In function 'int main()':
/in/foo.cc:13:18: error: no matching function for call to 'std::basic_istream<char>::getline(char [20])'
   13 |  cin.getline(name);
      |                  ^
In file included from /usr/include/c++/9/iostream:40,
                 from /in/foo.cc:1:
/usr/include/c++/9/istream:647:5: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize, std::basic_istream<_CharT, _Traits>::char_type) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = long int]'
  647 |     basic_istream<char>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/9/istream:647:5: note:   candidate expects 3 arguments, 1 provided
/usr/include/c++/9/istream:427:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::getline(std::basic_istream<_CharT, _Traits>::char_type*, std::streamsize) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::char_type = char; std::streamsize = long int]'
  427 |       getline(char_type* __s, streamsize __n)
      |       ^~~~~~~
/usr/include/c++/9/istream:427:7: note:   candidate expects 2 arguments, 1 provided