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View Compilation Error

0_0_13333662_19747.cpp: In function 'int newnode()':
0_0_13333662_19747.cpp:22:3: error: reference to 'next' is ambiguous
   next[pos][i] = 0;
   ^
0_0_13333662_19747.cpp:18:5: note: candidates are: int next [550275][26]
 int next[MAXN * MAXM][26], cnt[MAXN * MAXM], fail[MAXN * MAXM], pos;
     ^
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_13333662_19747.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_13333662_19747.cpp: In function 'void insert(char*)':
0_0_13333662_19747.cpp:30:28: error: reference to 'next' is ambiguous
   int k = s[i] - 'a', &x = next[p][k];
                            ^
0_0_13333662_19747.cpp:18:5: note: candidates are: int next [550275][26]
 int next[MAXN * MAXM][26], cnt[MAXN * MAXM], fail[MAXN * MAXM], pos;
     ^
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_13333662_19747.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_13333662_19747.cpp: In function 'void makenext()':
0_0_13333662_19747.cpp:45:12: error: reference to 'next' is ambiguous
    int v = next[u][i];
            ^
0_0_13333662_19747.cpp:18:5: note: candidates are: int next [550275][26]
 int next[MAXN * MAXM][26], cnt[MAXN * MAXM], fail[MAXN * MAXM], pos;
     ^
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_13333662_19747.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_13333662_19747.cpp:47:5: error: reference to 'next' is ambiguous
     next[u][i] = next[fail[u]][i];// why? 缺少v, 求next  
     ^
0_0_13333662_19747.cpp:18:5: note: candidates are: int next [550275][26]
 int next[MAXN * MAXM][26], cnt[MAXN * MAXM], fail[MAXN * MAXM], pos;
     ^
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_13333662_19747.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_13333662_19747.cpp:47:18: error: reference to 'next' is ambiguous
     next[u][i] = next[fail[u]][i];// why? 缺少v, 求next  
                  ^
0_0_13333662_19747.cpp:18:5: note: candidates are: int next [550275][26]
 int next[MAXN * MAXM][26], cnt[MAXN * MAXM], fail[MAXN * MAXM], pos;
     ^
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_13333662_19747.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_13333662_19747.cpp:53:13: error: reference to 'next' is ambiguous
     fail[v]=next[fail[u]][i];// 为什么只弄了一下? 如果没有会怎么样? 求fail  
             ^
0_0_13333662_19747.cpp:18:5: note: candidates are: int next [550275][26]
 int next[MAXN * MAXM][26], cnt[MAXN * MAXM], fail[MAXN * MAXM], pos;
     ^
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_13333662_19747.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_13333662_19747.cpp: In function 'int query(char*)':
0_0_13333662_19747.cpp:63:13: error: reference to 'next' is ambiguous
         d = next[d][idx];
             ^
0_0_13333662_19747.cpp:18:5: note: candidates are: int next [550275][26]
 int next[MAXN * MAXM][26], cnt[MAXN * MAXM], fail[MAXN * MAXM], pos;
     ^
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_13333662_19747.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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