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View Compilation Error

0_0_16358272_10617.cpp: In function 'int Bfs()':
0_0_16358272_10617.cpp:29:1: error: reference to 'next' is ambiguous
 next.x=cur.x+dir[i][0];
 ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:30:1: error: reference to 'next' is ambiguous
 next.y=cur.y+dir[i][1];
 ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:31:1: error: reference to 'next' is ambiguous
 next.z=cur.z+dir[i][2];
 ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:32:1: error: reference to 'next' is ambiguous
 next.time=cur.time+1;
 ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:33:9: error: reference to 'next' is ambiguous
 if(mark[next.x][next.y][next.z]==0&&next.x==A&&next.y==B&&next.z==C)[next.y][next.z]==0;
         ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:33:17: error: reference to 'next' is ambiguous
 if(mark[next.x][next.y][next.z]==0&&next.x==A&&next.y==B&&next.z==C)[next.y][next.z]==0;
                 ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:33:25: error: reference to 'next' is ambiguous
 if(mark[next.x][next.y][next.z]==0&&next.x==A&&next.y==B&&next.z==C)[next.y][next.z]==0;
                         ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:33:37: error: reference to 'next' is ambiguous
 if(mark[next.x][next.y][next.z]==0&&next.x==A&&next.y==B&&next.z==C)[next.y][next.z]==0;
                                     ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:33:48: error: reference to 'next' is ambiguous
 if(mark[next.x][next.y][next.z]==0&&next.x==A&&next.y==B&&next.z==C)[next.y][next.z]==0;
                                                ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:33:59: error: reference to 'next' is ambiguous
 if(mark[next.x][next.y][next.z]==0&&next.x==A&&next.y==B&&next.z==C)[next.y][next.z]==0;
                                                           ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:33:70: error: reference to 'next' is ambiguous
 if(mark[next.x][next.y][next.z]==0&&next.x==A&&next.y==B&&next.z==C)[next.y][next.z]==0;
                                                                      ^
0_0_16358272_10617.cpp:9:10: note: candidates are: node next
 node cur,next;
          ^
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_16358272_10617.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_16358272_10617.cpp:33:70: error: 'next' was not declared in this scope
 if(mark[


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