0_0_25172258_30714.cpp: In function 'void Add(int, int)':
0_0_25172258_30714.cpp:33:5: error: reference to 'next' is ambiguous
next[++total] = head[x];
^
0_0_25172258_30714.cpp:26:5: note: candidates are: int next [2000010]
int next[MAX],aim[MAX];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_25172258_30714.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_25172258_30714.cpp: In function 'int BFS()':
0_0_25172258_30714.cpp:46:37: error: reference to 'next' is ambiguous
for(int i = head[x]; i; i = next[i])
^
0_0_25172258_30714.cpp:26:5: note: candidates are: int next [2000010]
int next[MAX],aim[MAX];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_25172258_30714.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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