0_0_14612274_23362.cpp: In function 'void ins(int, int, int)':
0_0_14612274_23362.cpp:21:2: error: reference to 'next' is ambiguous
next[++k]=head[a]; head[a]=k; y[k]=b; siz[k]=si; fan[k]=k+1;
^
0_0_14612274_23362.cpp:13:5: note: candidates are: int next [600600]
int next[600600],y[600600],siz[600600],pre[600600],fan[600600];
^
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_14612274_23362.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_14612274_23362.cpp:22:2: error: reference to 'next' is ambiguous
next[++k]=head[b]; head[b]=k; y[k]=a; siz[k]=si; fan[k]=k-1;
^
0_0_14612274_23362.cpp:13:5: note: candidates are: int next [600600]
int next[600600],y[600600],siz[600600],pre[600600],fan[600600];
^
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_14612274_23362.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_14612274_23362.cpp: In function 'void dfs(int)':
0_0_14612274_23362.cpp:35:7: error: reference to 'next' is ambiguous
} i=next[i];
^
0_0_14612274_23362.cpp:13:5: note: candidates are: int next [600600]
int next[600600],y[600600],siz[600600],pre[600600],fan[600600];
^
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_14612274_23362.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_14612274_23362.cpp: In function 'int main()':
0_0_14612274_23362.cpp:97:9: error: reference to 'next' is ambiguous
} j=next[j];
^
0_0_14612274_23362.cpp:13:5: note: candidates are: int next [600600]
int next[600600],y[600600],siz[600600],pre[600600],fan[600600];
^
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_14612274_23362.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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