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View Compilation Error

0_0_38619645_23495.cpp: In function 'void dfs(int, int)':
0_0_38619645_23495.cpp:49:5: error: reference to 'size' is ambiguous
     size[u]=1,son[u]=0,pre[u]=fa;
     ^~~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/string:51,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/locale_classes.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/ios_base.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38619645_23495.cpp:2:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:252:5: note: candidates are: 'template<class _Tp, long long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])'
     size(const _Tp (&/*__array*/)[_Nm]) noexcept
     ^~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:242:5: note:                 'template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)'
     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
     ^~~~
0_0_38619645_23495.cpp:15:5: note:                 'int size [100010]'
 int size[maxn],pre[maxn],son[maxn],dep[maxn],top[maxn],w[maxn],tw[maxn];
     ^~~~
0_0_38619645_23495.cpp:55:11: error: reference to 'size' is ambiguous
           size[u]+=size[v];
           ^~~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/string:51,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/locale_classes.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/ios_base.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38619645_23495.cpp:2:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:252:5: note: candidates are: 'template<class _Tp, long long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])'
     size(const _Tp (&/*__array*/)[_Nm]) noexcept
     ^~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:242:5: note:                 'template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)'
     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
     ^~~~
0_0_38619645_23495.cpp:15:5: note:                 'int size [100010]'
 int size[maxn],pre[maxn],son[maxn],dep[maxn],top[maxn],w[maxn],tw[maxn];
     ^~~~
0_0_38619645_23495.cpp:55:20: error: reference to 'size' is ambiguous
           size[u]+=size[v];
                    ^~~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/string:51,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/locale_classes.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/ios_base.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38619645_23495.cpp:2:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:252:5: note: candidates are: 'template<class _Tp, long long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])'
     size(const _Tp (&/*__array*/)[_Nm]) noexcept
     ^~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:242:5: note:                 'template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)'
     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
     ^~~~
0_0_38619645_23495.cpp:15:5: note:                 'int size [100010]'
 int size[maxn],pre[maxn],son[maxn],dep[maxn],top[maxn],w[maxn],tw[maxn];
     ^~~~
0_0_38619645_23495.cpp:56:14: error: reference to 'size' is ambiguous
           if(size[v]>size[son[u]]) son[u]=v;
              ^~~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/string:51,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/locale_classes.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/ios_base.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38619645_23495.cpp:2:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:252:5: note: candidates are: 'template<class _Tp, long long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])'
     size(const _Tp (&/*__array*/)[_Nm]) noexcept
     ^~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:242:5: note:                 'template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)'
     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
     ^~~~
0_0_38619645_23495.cpp:15:5: note:                 'int size [100010]'
 int size[maxn],pre[maxn],son[maxn],dep[maxn],top[maxn],w[maxn],tw[maxn];
     ^~~~
0_0_38619645_23495.cpp:56:22: error: reference to 'size' is ambiguous
           if(size[v]>size[son[u]]) son[u]=v;
                      ^~~~
In file included from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/string:51,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/locale_classes.h:40,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/ios_base.h:41,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ios:42,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/ostream:38,
                 from gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/iostream:39,
                 from 0_0_38619645_23495.cpp:2:
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:252:5: note: candidates are: 'template<class _Tp, long long unsigned int _Nm> constexpr std::size_t std::size(const _Tp (&)[_Nm])'
     size(const _Tp (&/*__array*/)[_Nm]) noexcept
     ^~~~
gcc-8.5.0/lib/gcc/x86_64-w64-mingw32/8.5.0/include/c++/bits/range_access.h:242:5: note:                 'template<class _Container> constexpr decltype (__cont.size()) std::size(const _Container&)'
     size(const _Container& __cont) noexcept(noexcept(__cont.size()))
     ^~~~
0_0_38619645_23495.cpp:15:5: note:                 'int size [100010]'
 int size[maxn],pre[maxn],son[maxn],dep[maxn],top[maxn],w[maxn],tw[maxn];
     ^~~~


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