0_0_28510530_9097.cpp: In function 'void bfs()':
0_0_28510530_9097.cpp:34:21: error: reference to 'next' is ambiguous
w.x=q.x+next[i][0];
^
0_0_28510530_9097.cpp:8:5: note: candidates are: int next [4][4]
int next[4][4]= {{1,0},{0,1},{-1,0},{0,-1}};
^
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_28510530_9097.cpp:3:
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_28510530_9097.cpp:35:21: error: reference to 'next' is ambiguous
w.y=q.y+next[i][1];
^
0_0_28510530_9097.cpp:8:5: note: candidates are: int next [4][4]
int next[4][4]= {{1,0},{0,1},{-1,0},{0,-1}};
^
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_28510530_9097.cpp:3:
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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