Owl Get a Life

Compile Error

general.cpp: In function ‘void merge(long long int, long long int)’:
general.cpp:28:9: error: reference to ‘size’ is ambiguous
28 | if (size[root_x] < size[root_y]) swap(root_x, root_y);
| ^~~~
In file included from /usr/include/c++/9/string:54,
from /usr/include/c++/9/bits/locale_classes.h:40,
from /usr/include/c++/9/bits/ios_base.h:41,
from /usr/include/c++/9/ios:42,
from /usr/include/c++/9/istream:38,
from /usr/include/c++/9/sstream:38,
from /usr/include/c++/9/complex:45,
from /usr/include/c++/9/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:54,
from general.cpp:1:
/usr/include/c++/9/bits/range_access.h:252:5: note: candidates are: ‘template<class _Tp, long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])’
252 |