answer.code: In function ‘void make_set(int)’:
answer.code:19:9: error: reference to ‘size’ is ambiguous
   19 |         size[v]=1;
      |         ^~~~
In file included from /usr/include/c++/11/string:54,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from answer.code:1:
/usr/include/c++/11/bits/range_access.h:254:5: note: candidates are: ‘template<class _Tp, long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])’
  254 |     size(const _Tp (&)[_Nm]) noexcept
      |     ^~~~
/usr/include/c++/11/bits/range_access.h:245:5: note:                 ‘template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)’
  245 |     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
      |     ^~~~
answer.code:15:18: note:                 ‘int size [205]’
   15 | int parent[205], size[205];
      |                  ^~~~
answer.code: In function ‘void union_sets(int, int)’:
answer.code:32:13: error: reference to ‘size’ is ambiguous
   32 |         if (size[a] < size[b])
      |             ^~~~
In file included from /usr/include/c++/11/string:54,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from answer.code:1:
/usr/include/c++/11/bits/range_access.h:254:5: note: candidates are: ‘template<class _Tp, long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])’
  254 |     size(const _Tp (&)[_Nm]) noexcept
      |     ^~~~
/usr/include/c++/11/bits/range_access.h:245:5: note:                 ‘template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)’
  245 |     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
      |     ^~~~
answer.code:15:18: note:                 ‘int size [205]’
   15 | int parent[205], size[205];
      |                  ^~~~
answer.code:32:23: error: reference to ‘size’ is ambiguous
   32 |         if (size[a] < size[b])
      |                       ^~~~
In file included from /usr/include/c++/11/string:54,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from answer.code:1:
/usr/include/c++/11/bits/range_access.h:254:5: note: candidates are: ‘template<class _Tp, long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])’
  254 |     size(const _Tp (&)[_Nm]) noexcept
      |     ^~~~
/usr/include/c++/11/bits/range_access.h:245:5: note:                 ‘template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)’
  245 |     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
      |     ^~~~
answer.code:15:18: note:                 ‘int size [205]’
   15 | int parent[205], size[205];
      |                  ^~~~
answer.code:35:9: error: reference to ‘size’ is ambiguous
   35 |         size[a] += size[b];
      |         ^~~~
In file included from /usr/include/c++/11/string:54,
                 from /usr/include/c++/11/bits/locale_classes.h:40,
                 from /usr/include/c++/11/bits/ios_base.h:41,
                 from /usr/include/c++/11/ios:42,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from answer.code:1:
/usr/include/c++/11/bits/range_access.h:254:5: note: candidates are: ‘template<class _Tp, long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])’
  254 |     size(const _Tp (&)[_Nm]) noexcept
      |     ^~~~
/usr/include/c++/11/bits/range_access.h:245:5: note:                 ‘template<class _Container> constexpr dec...