0_0_13191984_4995.cpp: In function 'int bfs()':
0_0_13191984_4995.cpp:38:12: error: reference to 'next' is ambiguous
q.x=p.x+next[k][0];
^
0_0_13191984_4995.cpp:14:5: note: candidates are: int next [4][2]
int next[4][2]={{0,1},{0,-1},{1,0},{-1,0}};
^
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_13191984_4995.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_13191984_4995.cpp:39:12: error: reference to 'next' is ambiguous
q.y=p.y+next[k][1];
^
0_0_13191984_4995.cpp:14:5: note: candidates are: int next [4][2]
int next[4][2]={{0,1},{0,-1},{1,0},{-1,0}};
^
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_13191984_4995.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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