0_0_13244601_9619.cpp: In function 'void insert(int, int)':
0_0_13244601_9619.cpp:34:39: error: reference to 'next' is ambiguous
void insert(int aa,int bb){v[++ne]=bb;next[ne]=head[aa];head[aa]=ne;}
^
0_0_13244601_9619.cpp:7:14: note: candidates are: int next [100010]
int head[NN],next[2*NN],v[2*NN],size[NN],fa[NN],deep[NN],son[NN],mid[NN];
^
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_13244601_9619.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_13244601_9619.cpp: In function 'void dfs0(int, int)':
0_0_13244601_9619.cpp:39:24: error: reference to 'next' is ambiguous
for(int i=head[k];i;i=next[i])if(v[i]!=f)
^
0_0_13244601_9619.cpp:7:14: note: candidates are: int next [100010]
int head[NN],next[2*NN],v[2*NN],size[NN],fa[NN],deep[NN],son[NN],mid[NN];
^
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_13244601_9619.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_13244601_9619.cpp:44:21: error: reference to 'next' is ambiguous
else if(i!=head[k])next[y]=next[i];else head[k]=next[i];
^
0_0_13244601_9619.cpp:7:14: note: candidates are: int next [100010]
int head[NN],next[2*NN],v[2*NN],size[NN],fa[NN],deep[NN],son[NN],mid[NN];
^
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_13244601_9619.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_13244601_9619.cpp:44:29: error: reference to 'next' is ambiguous
else if(i!=head[k])next[y]=next[i];else head[k]=next[i];
^
0_0_13244601_9619.cpp:7:14: note: candidates are: int next [100010]
int head[NN],next[2*NN],v[2*NN],size[NN],fa[NN],deep[NN],son[NN],mid[NN];
^
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_13244601_9619.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_13244601_9619.cpp:44:50: error: reference to 'next' is ambiguous
else if(i!=head[k])next[y]=next[i];else head[k]=next[i];
^
0_0_13244601_9619.cpp:7:14: note: candidates are: int next [100010]
int head[NN],next[2*NN],v[2*NN],size[NN],fa[NN],deep[NN],son[NN],mid[NN];
^
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_13244601_9619.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_13244601_9619.cpp: In function 'void dfs1(int, int)':
0_0_13244601_9619.cpp:49:24: error: reference to 'next' is ambiguous
for(int i=head[k];i;i=next[i])if(v[i]!=son[k]&&v[i]!=fa[k])dfs1(v[i],v[i]);
^
0_0_13244601_9619.cpp:7:14: note: candidates are: int next [100010]
int head[NN],next[2*NN],v[2*NN],size[NN],fa[NN],deep[NN],son[NN],mid[NN];
^
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_13244601_9619.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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