0_0_18032551_31313.cpp: In function 'void add(int, int)':
0_0_18032551_31313.cpp:34:16: error: reference to 'next' is ambiguous
to[edge]=v,next[edge]=head[u],head[u]=edge++;
^
0_0_18032551_31313.cpp:8:14: note: candidates are: int next [100000]
int to[maxm],next[maxm],head[maxn],edge;
^
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++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_18032551_31313.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_18032551_31313.cpp: In function 'bool find(int)':
0_0_18032551_31313.cpp:39:28: error: reference to 'next' is ambiguous
for(i=head[now]; ~i; i=next[i])
^
0_0_18032551_31313.cpp:8:14: note: candidates are: int next [100000]
int to[maxm],next[maxm],head[maxn],edge;
^
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++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_18032551_31313.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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