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View Compilation Error

0_0_17033298_13848.cpp: In function 'void Add(int, int, int)':
0_0_17033298_13848.cpp:43:2: error: reference to 'next' is ambiguous
  next[++total] = head[x];
  ^
0_0_17033298_13848.cpp:11:5: note: candidates are: int next [80010]
 int next[MAX],aim[MAX],length[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_17033298_13848.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_17033298_13848.cpp: In function 'void BFS(int)':
0_0_17033298_13848.cpp:58:29: error: reference to 'next' is ambiguous
   for(int i = head[x];i;i = next[i])
                             ^
0_0_17033298_13848.cpp:11:5: note: candidates are: int next [80010]
 int next[MAX],aim[MAX],length[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_17033298_13848.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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