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View Compilation Error

0_0_22376268_32255.cpp: In function 'void add(int, int, int)':
0_0_22376268_32255.cpp:13:2: error: reference to 'next' is ambiguous
  next[cnt]=first[x];
  ^
0_0_22376268_32255.cpp:6:22: note: candidates are: int next [300]
 int fun[110],to[300],next[300],first[110],len[300],dis[110];
                      ^
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_22376268_32255.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_22376268_32255.cpp: In function 'void dfs(int)':
0_0_22376268_32255.cpp:19:25: error: reference to 'next' is ambiguous
  for(int i=first[x];i;i=next[i])
                         ^
0_0_22376268_32255.cpp:6:22: note: candidates are: int next [300]
 int fun[110],to[300],next[300],first[110],len[300],dis[110];
                      ^
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_22376268_32255.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_22376268_32255.cpp: In function 'int main()':
0_0_22376268_32255.cpp:31:10: error: reference to 'next' is ambiguous
   memset(next,0,sizeof(next));
          ^
0_0_22376268_32255.cpp:6:22: note: candidates are: int next [300]
 int fun[110],to[300],next[300],first[110],len[300],dis[110];
                      ^
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_22376268_32255.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_22376268_32255.cpp:31:24: error: reference to 'next' is ambiguous
   memset(next,0,sizeof(next));
                        ^
0_0_22376268_32255.cpp:6:22: note: candidates are: int next [300]
 int fun[110],to[300],next[300],first[110],len[300],dis[110];
                      ^
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_22376268_32255.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_22376268_32255.cpp:49:27: error: reference to 'next' is ambiguous
    for(int i=first[u];i;i=next[i])
                           ^
0_0_22376268_32255.cpp:6:22: note: candidates are: int next [300]
 int fun[110],to[300],next[300],first[110],len[300],dis[110];
                      ^
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_22376268_32255.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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