answer.code: In function ‘void solve()’:
answer.code:103:26: error: no match for ‘operator!=’ (operand types are ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’} and ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’})
  103 |                 if(v[pos]!=ans[i]){
In file included from /usr/include/c++/13/regex:68,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:181,
                 from answer.code:1:
/usr/include/c++/13/bits/regex.h:1132:5: note: candidate: ‘template<class _BiIter> bool std::__cxx11::operator!=(const sub_match<_BiIter>&, const sub_match<_BiIter>&)’
 1132 |     operator!=(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/13/bits/regex.h:1132:5: note:   template argument deduction/substitution failed:
answer.code:103:33: note:   ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’} is not derived from ‘const std::__cxx11::sub_match<_BiIter>’
  103 |                 if(v[pos]!=ans[i]){
      |                                 ^
/usr/include/c++/13/bits/regex.h:1212:5: note: candidate: ‘template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator!=(__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const sub_match<_BiIter>&)’
 1212 |     operator!=(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/regex.h:1212:5: note:   template argument deduction/substitution failed:
answer.code:103:33: note:   ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’} is not derived from ‘std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>’
  103 |                 if(v[pos]!=ans[i]){
      |                                 ^
/usr/include/c++/13/bits/regex.h:1305:5: note: candidate: ‘template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator!=(const sub_match<_BiIter>&, __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)’
 1305 |     operator!=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/regex.h:1305:5: note:   template argument deduction/substitution failed:
answer.code:103:33: note:   ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’} is not derived from ‘const std::__cxx11::sub_match<_BiIter>’
  103 |                 if(v[pos]!=ans[i]){
      |                                 ^
/usr/include/c++/13/bits/regex.h:1379:5: note: candidate: ‘template<class _Bi_iter> bool std::__cxx11::operator!=(const typename std::iterator_traits<_Iter>::value_type*, const sub_match<_BiIter>&)’
 1379 |     operator!=(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/regex.h:1379:5: note:   template argument deduction/substitution failed:
answer.code:103:33: note:   ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’} is not derived from ‘const std::__cxx11::sub_match<_BiIter>’
  103 |                 if(v[pos]!=ans[i]){
      |                                 ^
/usr/include/c++/13/bits/regex.h:1473:5: note: candidate: ‘template<class _Bi_iter> bool std::__cxx11::operator!=(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)’
 1473 |     operator!=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/regex.h:1473:5: note:   template argument deduction/substitution failed:
answer.code:103:33: note:   ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’} is not derived from ‘const std::__cxx11::sub_match<_BiIter>’
  103 |                 if(v[pos]!=ans[i]){
      |                                 ^
/usr/include/c++/13/bits/regex.h:1547:5: note: candidate: ‘template<class _Bi_iter> bool std::__cxx11::operator!=(const typename std::iterator_traits<_Iter>::value_type&, const sub_match<_BiIter>&)’
 1547 |     operator!=(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/regex.h:1547:5: note:   template argument deduction/substitution failed:
answer.code:103:33: note:   ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’} is not derived from ‘const std::__cxx11::sub_match<_BiIter>’
  103 |                 if(v[pos]!=ans[i]){
      |                                 ^
/usr/include/c++/13/bits/regex.h:1647:5: note: candidate: ‘template<class _Bi_iter> bool std::__cxx11::operator!=(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)’
 1647 |     operator!=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/13/bits/regex.h:1647:5: note:   template argument deduction/substitution failed:
answer.code:103:33: note:   ‘__gnu_cxx::__alloc_traits<std::allocator<point>, point>::value_type’ {aka ‘point’} is not derived from ‘const std::__...