0_0_21822541_21439.cpp: In function 'void add(int, int, int)':
0_0_21822541_21439.cpp:24:5: error: reference to 'next' is ambiguous
next[e]=head[x];
^
0_0_21822541_21439.cpp:11:14: note: candidates are: int next [2004010]
int v[MAXM], next[MAXM], flow[MAXM];
^
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_21822541_21439.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_21822541_21439.cpp:28:5: error: reference to 'next' is ambiguous
next[e]=head[y];
^
0_0_21822541_21439.cpp:11:14: note: candidates are: int next [2004010]
int v[MAXM], next[MAXM], flow[MAXM];
^
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_21822541_21439.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_21822541_21439.cpp: In function 'int bfs(int, int)':
0_0_21822541_21439.cpp:38:46: error: reference to 'next' is ambiguous
for(int j = head[q[i]]; j != -1; j = next[j])
^
0_0_21822541_21439.cpp:11:14: note: candidates are: int next [2004010]
int v[MAXM], next[MAXM], flow[MAXM];
^
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_21822541_21439.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_21822541_21439.cpp: In function 'int dfs(int, int, int)':
0_0_21822541_21439.cpp:51:41: error: reference to 'next' is ambiguous
for(int &i = out[cur]; i != -1; i = next[i])
^
0_0_21822541_21439.cpp:11:14: note: candidates are: int next [2004010]
int v[MAXM], next[MAXM], flow[MAXM];
^
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_21822541_21439.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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