0_0_20027229_19972.cpp: In function 'void adde()':
0_0_20027229_19972.cpp:20:13: error: reference to 'next' is ambiguous
to[++ll]=v;next[ll]=head[u];head[u]=ll;
^
0_0_20027229_19972.cpp:16:43: note: candidates are: int next [200010]
int n,m,rn[N],S,T,ll,ans,head[N],to[N<<1],next[N<<1],fa[N],dis[N],pos[N];
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_20027229_19972.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
next(_ForwardIterator __x, typename
^
0_0_20027229_19972.cpp:21:13: error: reference to 'next' is ambiguous
to[++ll]=u;next[ll]=head[v];head[v]=ll;
^
0_0_20027229_19972.cpp:16:43: note: candidates are: int next [200010]
int n,m,rn[N],S,T,ll,ans,head[N],to[N<<1],next[N<<1],fa[N],dis[N],pos[N];
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_20027229_19972.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
next(_ForwardIterator __x, typename
^
0_0_20027229_19972.cpp: In function 'void dfs1(int)':
0_0_20027229_19972.cpp:27:27: error: reference to 'next' is ambiguous
for (int i=head[u],v;i;i=next[i]) if ((v=to[i])!=fa[u])
^
0_0_20027229_19972.cpp:16:43: note: candidates are: int next [200010]
int n,m,rn[N],S,T,ll,ans,head[N],to[N<<1],next[N<<1],fa[N],dis[N],pos[N];
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_20027229_19972.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
next(_ForwardIterator __x, typename
^
0_0_20027229_19972.cpp: In function 'void dfs2(int)':
0_0_20027229_19972.cpp:38:27: error: reference to 'next' is ambiguous
for (int i=head[u],v;i;i=next[i]) if (!vis[v=to[i]])
^
0_0_20027229_19972.cpp:16:43: note: candidates are: int next [200010]
int n,m,rn[N],S,T,ll,ans,head[N],to[N<<1],next[N<<1],fa[N],dis[N],pos[N];
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:66:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_20027229_19972.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type)
next(_ForwardIterator __x, typename
^
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