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View Compilation Error

0_0_16448483_22114.cpp: In function 'void add(int, int, int)':
0_0_16448483_22114.cpp:11:2: error: reference to 'next' is ambiguous
  next[e]=first[a];
  ^
0_0_16448483_22114.cpp:6:21: note: candidates are: int next [100]
 int e,d[N],first[N],next[100],v[100],w[100];
                     ^
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_16448483_22114.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_16448483_22114.cpp: In function 'int SPFA()':
0_0_16448483_22114.cpp:44:26: error: 'memset' was not declared in this scope
  memset(vis,0,sizeof(vis));
                          ^
0_0_16448483_22114.cpp:50:22: error: reference to 'next' is ambiguous
   for(i=first[X];i;i=next[i])
                      ^
0_0_16448483_22114.cpp:6:21: note: candidates are: int next [100]
 int e,d[N],first[N],next[100],v[100],w[100];
                     ^
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_16448483_22114.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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