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View Compilation Error

0_0_25739390_13619.cpp: In function 'void add(int, int, int)':
0_0_25739390_13619.cpp:16:9: error: reference to 'next' is ambiguous
  tot++; next[tot]=point[x]; point[x]=tot; v[tot]=y; remain[tot]=z;
         ^
0_0_25739390_13619.cpp:12:19: note: candidates are: int next [2003]
 int point[N],v[N],next[N],remain[N],last[N],cur[N],deep[N],num[N];
                   ^
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++/bits/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_25739390_13619.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_25739390_13619.cpp:17:9: error: reference to 'next' is ambiguous
  tot++; next[tot]=point[y]; point[y]=tot; v[tot]=x; remain[tot]=0;
         ^
0_0_25739390_13619.cpp:12:19: note: candidates are: int next [2003]
 int point[N],v[N],next[N],remain[N],last[N],cur[N],deep[N],num[N];
                   ^
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++/bits/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_25739390_13619.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_25739390_13619.cpp: In function 'void bfs(int, int)':
0_0_25739390_13619.cpp:41:33: error: reference to 'next' is ambiguous
   for (int i=point[now];i!=-1;i=next[i])
                                 ^
0_0_25739390_13619.cpp:12:19: note: candidates are: int next [2003]
 int point[N],v[N],next[N],remain[N],last[N],cur[N],deep[N],num[N];
                   ^
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++/bits/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_25739390_13619.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_25739390_13619.cpp: In function 'int isap(int, int)':
0_0_25739390_13619.cpp:57:31: error: reference to 'next' is ambiguous
   for (int i=cur[now];i!=-1;i=next[i])
                               ^
0_0_25739390_13619.cpp:12:19: note: candidates are: int next [2003]
 int point[N],v[N],next[N],remain[N],last[N],cur[N],deep[N],num[N];
                   ^
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++/bits/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_25739390_13619.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_25739390_13619.cpp:67:34: error: reference to 'next' is ambiguous
    for (int i=point[now];i!=-1;i=next[i])
                                  ^
0_0_25739390_13619.cpp:12:19: note: candidates are: int next [2003]
 int point[N],v[N],next[N],remain[N],last[N],cur[N],deep[N],num[N];
                   ^
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++/bits/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_25739390_13619.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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