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View Compilation Error

0_0_33133757_25742.cpp: In function 'void dfs(int, int, int)':
0_0_33133757_25742.cpp:21:8: error: reference to 'next' is ambiguous
   x=x0+next[i][0];
        ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp:22:8: error: reference to 'next' is ambiguous
   y=y0+next[i][1];
        ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp: In function 'int main()':
0_0_33133757_25742.cpp:35:2: error: reference to 'next' is ambiguous
  next[0][0]=0;next[0][1]=1;next[0][0]=0;next[0][1]=-1;
  ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp:35:15: error: reference to 'next' is ambiguous
  next[0][0]=0;next[0][1]=1;next[0][0]=0;next[0][1]=-1;
               ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp:35:28: error: reference to 'next' is ambiguous
  next[0][0]=0;next[0][1]=1;next[0][0]=0;next[0][1]=-1;
                            ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp:35:41: error: reference to 'next' is ambiguous
  next[0][0]=0;next[0][1]=1;next[0][0]=0;next[0][1]=-1;
                                         ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp:36:2: error: reference to 'next' is ambiguous
  next[0][0]=1;next[0][1]=0;next[0][0]=-1;next[0][1]=0; 
  ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp:36:15: error: reference to 'next' is ambiguous
  next[0][0]=1;next[0][1]=0;next[0][0]=-1;next[0][1]=0; 
               ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp:36:28: error: reference to 'next' is ambiguous
  next[0][0]=1;next[0][1]=0;next[0][0]=-1;next[0][1]=0; 
                            ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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_33133757_25742.cpp:36:42: error: reference to 'next' is ambiguous
  next[0][0]=1;next[0][1]=0;next[0][0]=-1;next[0][1]=0; 
                                          ^
0_0_33133757_25742.cpp:6:5: note: candidates are: int next [4][2]
 int next[4][2];
     ^
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++/algorithm:61,
                 from 0_0_33133757_25742.cpp:2:
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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