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View Compilation Error

0_0_17992425_2623.cpp: In function 'void clear()':
0_0_17992425_2623.cpp:18:9: error: reference to 'next' is ambiguous
  memset(next,-1,sizeof(next));
         ^
0_0_17992425_2623.cpp:10:15: note: candidates are: int next [200010]
 int c[200010],next[200010],point[100010],tt;
               ^
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_17992425_2623.cpp:4:
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_17992425_2623.cpp:18:24: error: reference to 'next' is ambiguous
  memset(next,-1,sizeof(next));
                        ^
0_0_17992425_2623.cpp:10:15: note: candidates are: int next [200010]
 int c[200010],next[200010],point[100010],tt;
               ^
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_17992425_2623.cpp:4:
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_17992425_2623.cpp: In function 'void add1(int, int)':
0_0_17992425_2623.cpp:35:17: error: reference to 'next' is ambiguous
  tt++; c[tt]=y; next[tt]=point[x]; point[x]=tt;
                 ^
0_0_17992425_2623.cpp:10:15: note: candidates are: int next [200010]
 int c[200010],next[200010],point[100010],tt;
               ^
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_17992425_2623.cpp:4:
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_17992425_2623.cpp: In function 'void do1(int, int)':
0_0_17992425_2623.cpp:56:6: error: reference to 'next' is ambiguous
    u=next[u];
      ^
0_0_17992425_2623.cpp:10:15: note: candidates are: int next [200010]
 int c[200010],next[200010],point[100010],tt;
               ^
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_17992425_2623.cpp:4:
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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