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View Compilation Error

0_0_15975112_12437.cpp: In function 'void add()':
0_0_15975112_12437.cpp:18:8: error: reference to 'next' is ambiguous
   if (!next[x][s[i]-'a']) next[x][s[i]-'a']=++now,fa[now]=x;
        ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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_15975112_12437.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_15975112_12437.cpp:18:27: error: reference to 'next' is ambiguous
   if (!next[x][s[i]-'a']) next[x][s[i]-'a']=++now,fa[now]=x;
                           ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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_15975112_12437.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_15975112_12437.cpp:19:5: error: reference to 'next' is ambiguous
   x=next[x][s[i]-'a'];
     ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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_15975112_12437.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_15975112_12437.cpp: In function 'void calcfail()':
0_0_15975112_12437.cpp:27:25: error: reference to 'next' is ambiguous
  for (i=0;i<26;i++) if (next[1][i]) fail[next[1][i]]=1,Q.push(next[1][i]);
                         ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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_15975112_12437.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_15975112_12437.cpp:27:42: error: reference to 'next' is ambiguous
  for (i=0;i<26;i++) if (next[1][i]) fail[next[1][i]]=1,Q.push(next[1][i]);
                                          ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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_15975112_12437.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_15975112_12437.cpp:27:63: error: reference to 'next' is ambiguous
  for (i=0;i<26;i++) if (next[1][i]) fail[next[1][i]]=1,Q.push(next[1][i]);
                                                               ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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_15975112_12437.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_15975112_12437.cpp:33:9: error: reference to 'next' is ambiguous
    if (!next[x][i]) continue;
         ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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_15975112_12437.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_15975112_12437.cpp:35:12: error: reference to 'next' is ambiguous
    while (!next[y][i])
            ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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_15975112_12437.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_15975112_12437.cpp:40:8: error: reference to 'next' is ambiguous
    if (next[y][i]) fail[next[x][i]]=next[y][i];
        ^
0_0_15975112_12437.cpp:8:7: note: candidates are: int next [510051][26]
 int n,next[N*Len][26],ok[N*Len],fail[N*Len],now=1,len,fa[N*Len],ans=0;
       ^
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,
                 


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