0_0_39453650_4833.cpp: In function 'void dfs1(int, int)':
0_0_39453650_4833.cpp:24:9: error: reference to 'ref' is ambiguous
24 | ref[tot]=u;
| ^~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string:52,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/locale_classes.h:40,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/ios_base.h:41,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/ios:44,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/ostream:40,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/iostream:41,
from 0_0_39453650_4833.cpp:2:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:394:5: note: candidates are: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(reference_wrapper<_Tp>)'
394 | ref(reference_wrapper<_Tp> __t) noexcept
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:385:10: note: 'template<class _Tp> void std::ref(const _Tp&&)'
385 | void ref(const _Tp&&) = delete;
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:374:5: note: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(_Tp&)'
374 | ref(_Tp& __t) noexcept
| ^~~
0_0_39453650_4833.cpp:16:26: note: 'int ref [500005]'
16 | int siz[N],son[N],dfn[N],ref[N],tot;
| ^~~
0_0_39453650_4833.cpp: In function 'void dsu_on_tree(int, int, int)':
0_0_39453650_4833.cpp:79:62: error: reference to 'ref' is ambiguous
79 | ans[u]+=query1(1e6)-query1(a[ref[j]])+query2(a[ref[j]])*a[ref[j]]*a[ref[j]];
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:394:5: note: candidates are: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(reference_wrapper<_Tp>)'
394 | ref(reference_wrapper<_Tp> __t) noexcept
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:385:10: note: 'template<class _Tp> void std::ref(const _Tp&&)'
385 | void ref(const _Tp&&) = delete;
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:374:5: note: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(_Tp&)'
374 | ref(_Tp& __t) noexcept
| ^~~
0_0_39453650_4833.cpp:16:26: note: 'int ref [500005]'
16 | int siz[N],son[N],dfn[N],ref[N],tot;
| ^~~
0_0_39453650_4833.cpp:79:80: error: reference to 'ref' is ambiguous
79 | ans[u]+=query1(1e6)-query1(a[ref[j]])+query2(a[ref[j]])*a[ref[j]]*a[ref[j]];
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:394:5: note: candidates are: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(reference_wrapper<_Tp>)'
394 | ref(reference_wrapper<_Tp> __t) noexcept
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:385:10: note: 'template<class _Tp> void std::ref(const _Tp&&)'
385 | void ref(const _Tp&&) = delete;
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:374:5: note: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(_Tp&)'
374 | ref(_Tp& __t) noexcept
| ^~~
0_0_39453650_4833.cpp:16:26: note: 'int ref [500005]'
16 | int siz[N],son[N],dfn[N],ref[N],tot;
| ^~~
0_0_39453650_4833.cpp:79:91: error: reference to 'ref' is ambiguous
79 | ans[u]+=query1(1e6)-query1(a[ref[j]])+query2(a[ref[j]])*a[ref[j]]*a[ref[j]];
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:394:5: note: candidates are: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(reference_wrapper<_Tp>)'
394 | ref(reference_wrapper<_Tp> __t) noexcept
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:385:10: note: 'template<class _Tp> void std::ref(const _Tp&&)'
385 | void ref(const _Tp&&) = delete;
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:374:5: note: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(_Tp&)'
374 | ref(_Tp& __t) noexcept
| ^~~
0_0_39453650_4833.cpp:16:26: note: 'int ref [500005]'
16 | int siz[N],son[N],dfn[N],ref[N],tot;
| ^~~
0_0_39453650_4833.cpp:79:101: error: reference to 'ref' is ambiguous
79 | ans[u]+=query1(1e6)-query1(a[ref[j]])+query2(a[ref[j]])*a[ref[j]]*a[ref[j]];
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:394:5: note: candidates are: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(reference_wrapper<_Tp>)'
394 | ref(reference_wrapper<_Tp> __t) noexcept
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:385:10: note: 'template<class _Tp> void std::ref(const _Tp&&)'
385 | void ref(const _Tp&&) = delete;
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:374:5: note: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(_Tp&)'
374 | ref(_Tp& __t) noexcept
| ^~~
0_0_39453650_4833.cpp:16:26: note: 'int ref [500005]'
16 | int siz[N],son[N],dfn[N],ref[N],tot;
| ^~~
0_0_39453650_4833.cpp:82:40: error: reference to 'ref' is ambiguous
82 | add1(a[ref[j]],a[ref[j]]*a[ref[j]]);
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:394:5: note: candidates are: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(reference_wrapper<_Tp>)'
394 | ref(reference_wrapper<_Tp> __t) noexcept
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:385:10: note: 'template<class _Tp> void std::ref(const _Tp&&)'
385 | void ref(const _Tp&&) = delete;
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:374:5: note: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(_Tp&)'
374 | ref(_Tp& __t) noexcept
| ^~~
0_0_39453650_4833.cpp:16:26: note: 'int ref [500005]'
16 | int siz[N],son[N],dfn[N],ref[N],tot;
| ^~~
0_0_39453650_4833.cpp:82:50: error: reference to 'ref' is ambiguous
82 | add1(a[ref[j]],a[ref[j]]*a[ref[j]]);
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:394:5: note: candidates are: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(reference_wrapper<_Tp>)'
394 | ref(reference_wrapper<_Tp> __t) noexcept
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:385:10: note: 'template<class _Tp> void std::ref(const _Tp&&)'
385 | void ref(const _Tp&&) = delete;
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:374:5: note: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(_Tp&)'
374 | ref(_Tp& __t) noexcept
| ^~~
0_0_39453650_4833.cpp:16:26: note: 'int ref [500005]'
16 | int siz[N],son[N],dfn[N],ref[N],tot;
| ^~~
0_0_39453650_4833.cpp:82:60: error: reference to 'ref' is ambiguous
82 | add1(a[ref[j]],a[ref[j]]*a[ref[j]]);
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:394:5: note: candidates are: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(reference_wrapper<_Tp>)'
394 | ref(reference_wrapper<_Tp> __t) noexcept
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:385:10: note: 'template<class _Tp> void std::ref(const _Tp&&)'
385 | void ref(const _Tp&&) = delete;
| ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/refwrap.h:374:5: note: 'template<class _Tp> constexpr std::reference_wrapper<_Tp> std::ref(_Tp&)'
374 | ref(_Tp& __t) noexcept
| ^~~
0_0_39453650_4833.cpp:16:26: note: 'int ref [500005]'
16 | int siz[N],son[N],dfn[N],ref[N],tot;
| ^~~
0_0_39453650_4833.cpp:83:40: error: reference to 'ref' is ambiguous
83 | add2(a[
|
