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View Compilation Error

0_0_15463669_24987.cpp: In function 'int main()':
0_0_15463669_24987.cpp:15:17: error: reference to 'next' is ambiguous
    if (h[a[i]]) next[i]=h[a[i]];
                 ^
0_0_15463669_24987.cpp:7:25: note: candidates are: int next [110001]
 int i,j,k,n,m,a[110001],next[110001],h[110001],ans,w[111],now,ts[110001],b[110001],num,tmp;
                         ^
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_15463669_24987.cpp:3:
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_15463669_24987.cpp:31:35: error: reference to 'next' is ambiguous
     k=q.top();j=a[k];q.pop();b[j]=next[b[j]];tmp=min(tmp,b[j]);
                                   ^
0_0_15463669_24987.cpp:7:25: note: candidates are: int next [110001]
 int i,j,k,n,m,a[110001],next[110001],h[110001],ans,w[111],now,ts[110001],b[110001],num,tmp;
                         ^
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_15463669_24987.cpp:3:
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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