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View Compilation Error

0_0_15941828_15745.cpp: In function 'int newnode()':
0_0_15941828_15745.cpp:9:36: error: reference to 'next' is ambiguous
 int newnode(){for(int i=0;i<26;++i)next[L][i]=-1;end[L++]=0;return L-1;}
                                    ^
0_0_15941828_15745.cpp:8:5: note: candidates are: int next [500010][26]
 int next[500010][26],fail[500010],end[500010],root,L;
     ^
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_15941828_15745.cpp:1:
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_15941828_15745.cpp:9:50: error: reference to 'end' is ambiguous
 int newnode(){for(int i=0;i<26;++i)next[L][i]=-1;end[L++]=0;return L-1;}
                                                  ^
0_0_15941828_15745.cpp:8:35: note: candidates are: int end [500010]
 int next[500010][26],fail[500010],end[500010],root,L;
                                   ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:51:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/random:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:66,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62,
                 from 0_0_15941828_15745.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:97:5: note:                 template<class _Tp, long long unsigned int _Nm> _Tp* std::end(_Tp (&)[_Nm])
     end(_Tp (&__arr)[_Nm])
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:78:5: note:                 template<class _Container> decltype (__cont.end()) std::end(const _Container&)
     end(const _Container& __cont) -> decltype(__cont.end())
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:68:5: note:                 template<class _Container> decltype (__cont.end()) std::end(_Container&)
     end(_Container& __cont) -> decltype(__cont.end())
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/utility:75:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:60,
                 from 0_0_15941828_15745.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/initializer_list:99:5: note:                 template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)
     end(initializer_list<_Tp> __ils) noexcept
     ^
0_0_15941828_15745.cpp: In function 'void insert(char*)':
0_0_15941828_15745.cpp:14:6: error: reference to 'next' is ambiguous
   if(next[now][buf[i]-'a']==-1)next[now][buf[i]-'a']=newnode();
      ^
0_0_15941828_15745.cpp:8:5: note: candidates are: int next [500010][26]
 int next[500010][26],fail[500010],end[500010],root,L;
     ^
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_15941828_15745.cpp:1:
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_15941828_15745.cpp:14:32: error: reference to 'next' is ambiguous
   if(next[now][buf[i]-'a']==-1)next[now][buf[i]-'a']=newnode();
                                ^
0_0_15941828_15745.cpp:8:5: note: candidates are: int next [500010][26]
 int next[500010][26],fail[500010],end[500010],root,L;
     ^
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_15941828_15745.cpp:1:
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_15941828_15745.cpp:15:7: error: reference to 'next' is ambiguous
   now=next[now][buf[i]-'a'];
       ^
0_0_15941828_15745.cpp:8:5: note: candidates are: int next [500010][26]
 int next[500010][26],fail[500010],end[500010],root,L;
     ^
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_15941828_15745.cpp:1:
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_15941828_15745.cpp:17:2: error: reference to 'end' is ambiguous
  end[now]++;
  ^
0_0_15941828_15745.cpp:8:35: note: candidates are: int end [500010]
 int next[500010][26],fail[500010],end[500010],root,L;
                                   ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:51:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/random:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:66,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62,
                 from 0_0_15941828_15745.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:97:5: note:                 template<class _Tp, long long unsigned int _Nm> _Tp* std::end(_Tp (&)[_Nm])
     end(_Tp (&__arr)[_Nm])
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:78:5: note:                 template<class _Container> decltype (__cont.end()) std::end(const _Container&)
     end(const _Container& __cont) -> decltype(__cont.end())
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/range_access.h:68:5: note:                 template<class _Container> decltype (__cont.end()) std::end(_Container&)
     end(_Container& __cont) -> decltype(__cont.end())
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/utility:75:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:60,
                 from 0_0_15941828_15745.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/initializer_list:99:5: note:                 template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)
     end(initializer_list<_Tp> __ils) noexcept
     ^
0_0_15941828_15745.cpp: In function 'void build()':
0_0_15941828_15745.cpp:23:12: error: reference to 'next' is ambiguous
         if(next[root][i]==-1)next[root][i]=root;
            ^
0_0_15941828_15745.cpp:8:5: note: candidates are: int next [500010][26]
 int next[500010][26],fail[500010],end[500010],root,L;
     ^
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_15941828_15745.cpp:1:
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_15941828_15745.cpp:23:30: error: reference to 'next' is ambiguous
         if(next[root][i]==-1)next[root][i]=root;
                              ^
0_0_15941828_15745.cpp:8:5: note: candidates are: int next [500010][26]
 int next[500010][26],fail[500010],end[500010],root,L;
     ^
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_15941828_15745.cpp:1:
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_15941828_15745.cpp:24:19: error: reference to 'next' is ambiguous
         else{fail[next[root][i]]=root;Q.push(next[root][i]);}
                   ^
0_0_15941828_15745.cpp:8:5: note: candidates are: int next [500010][26]
 int next[500010][26],fail[500010],end[500010],root,L;
     ^
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_15941828_15745.cpp:1:
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_15941828_15745.cpp:24:46: error: reference to 'next' is ambiguous
         else{fail[ne


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