answer.code: In function ‘void Merge(int, int, int)’:
answer.code:21:21: error: reference to ‘size’ is ambiguous
   21 |   sum[len] += 1ll * size[a] * size[b];
      |                     ^~~~
In file included from /usr/include/c++/11/array:41,
                 from /usr/include/c++/11/tuple:39,
                 from /usr/include/c++/11/functional:54,
                 from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/11/algorithm:74,
                 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:6:50: note:                 ‘int size [300001]’
    6 |             tp[300001], tag[300001], fa[300001], size[300001], Max[300001],
      |                                                  ^~~~
answer.code:21:31: error: reference to ‘size’ is ambiguous
   21 |   sum[len] += 1ll * size[a] * size[b];
      |                               ^~~~
In file included from /usr/include/c++/11/array:41,
                 from /usr/include/c++/11/tuple:39,
                 from /usr/include/c++/11/functional:54,
                 from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/11/algorithm:74,
                 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:6:50: note:                 ‘int size [300001]’
    6 |             tp[300001], tag[300001], fa[300001], size[300001], Max[300001],
      |                                                  ^~~~
answer.code:22:3: error: reference to ‘size’ is ambiguous
   22 |   size[a] += size[b];
      |   ^~~~
In file included from /usr/include/c++/11/array:41,
                 from /usr/include/c++/11/tuple:39,
                 from /usr/include/c++/11/functional:54,
                 from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/11/algorithm:74,
                 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:6:50: note:                 ‘int size [300001]’
    6 |             tp[300001], tag[300001], fa[300001], size[300001], Max[300001],
      |                                                  ^~~~
answer.code:22:14: error: reference to ‘size’ is ambiguous
   22 |   size[a] += size[b];
      |              ^~~~
In file included from /usr/include/c++/11/array:41,
                 from /usr/include/c++/11/tuple:39,
                 from /usr/include/c++/11/functional:54,
                 from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/11/algorithm:74,
                 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:6:50: note:                 ‘int size [300001]’
    6 |             tp[300001], tag[300001], fa[300001], size[300001], Max[300001],
      |                                                  ^~~~
answer.code: In function ‘int main()’:
answer.code:57:5: error: reference to ‘size’ is ambiguous
   57 |     size[i] = 1;
      |     ^~~~
In file included from /usr/include/c++/11/array:41,
                 from /usr/include/c++/11/tuple:39,
                 from /usr/include/c++/11/functional:54,
                 from /usr/include/c++/11/pstl/glue_algorithm_defs.h...