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View Compilation Error

0_0_21022898_27174.cpp: In function 'void addedge(int, int, int)':
0_0_21022898_27174.cpp:32:30: error: reference to 'next' is ambiguous
     ver[edge]=v,flow[edge]=c,next[edge]=head[u],head[u]=edge++;
                              ^
0_0_21022898_27174.cpp:8:22: note: candidates are: int next [1111111]
 int ver[mm],flow[mm],next[mm];
                      ^
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_21022898_27174.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_21022898_27174.cpp:33:30: error: reference to 'next' is ambiguous
     ver[edge]=u,flow[edge]=0,next[edge]=head[v],head[v]=edge++;
                              ^
0_0_21022898_27174.cpp:8:22: note: candidates are: int next [1111111]
 int ver[mm],flow[mm],next[mm];
                      ^
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_21022898_27174.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_21022898_27174.cpp: In function 'bool Dinic_bfs()':
0_0_21022898_27174.cpp:41:37: error: reference to 'next' is ambiguous
         for(i=head[u=q[l]]; i>=0; i=next[i])
                                     ^
0_0_21022898_27174.cpp:8:22: note: candidates are: int next [1111111]
 int ver[mm],flow[mm],next[mm];
                      ^
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_21022898_27174.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_21022898_27174.cpp: In function 'int Dinic_dfs(int, int)':
0_0_21022898_27174.cpp:52:39: error: reference to 'next' is ambiguous
     for(int &i=work[u],v,tmp; i>=0; i=next[i])
                                       ^
0_0_21022898_27174.cpp:8:22: note: candidates are: int next [1111111]
 int ver[mm],flow[mm],next[mm];
                      ^
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_21022898_27174.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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