answer.code: In function ‘int32_t main()’:
answer.code:36:21: error: no matching function for call to ‘min(int&, __gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type)’
   36 |             nx = min(nx, upper_bound(r.begin(), r.end(), r[x]) - r.begin());
      |                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from answer.code:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: ‘template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)’
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
answer.code:36:21: note:   deduced conflicting types for parameter ‘const _Tp’ (‘int’ and ‘__gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type’ {aka ‘long int’})
   36 |             nx = min(nx, upper_bound(r.begin(), r.end(), r[x]) - r.begin());
      |                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: ‘template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)’
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5685:5: note: candidate: ‘template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)’
 5685 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5685:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5695:5: note: candidate: ‘template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)’
 5695 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5695:5: note:   template argument deduction/substitution failed:
answer.code:36:21: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘int’
   36 |             nx = min(nx, upper_bound(r.begin(), r.end(), r[x]) - r.begin());
      |                  ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~