0_0_32852963_4138.cpp: In function 'void addedge(int, int)':
0_0_32852963_4138.cpp:11:5: error: reference to 'next' is ambiguous
next[edge_m]=head[s],edge[edge_m]=e,head[s]=edge_m++;
^
0_0_32852963_4138.cpp:8:46: note: candidates are: int next [2000050]
int dp[N][2],visit[M],edge_m,head[N],edge[M],next[M],dfn[N],low[N],all,ti;
^
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_32852963_4138.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_32852963_4138.cpp:12:5: error: reference to 'next' is ambiguous
next[edge_m]=head[e],edge[edge_m]=s,head[e]=edge_m++;
^
0_0_32852963_4138.cpp:8:46: note: candidates are: int next [2000050]
int dp[N][2],visit[M],edge_m,head[N],edge[M],next[M],dfn[N],low[N],all,ti;
^
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_32852963_4138.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_32852963_4138.cpp: In function 'void tarjan(int)':
0_0_32852963_4138.cpp:20:27: error: reference to 'next' is ambiguous
for(i=head[u];i!=-1;i=next[i])
^
0_0_32852963_4138.cpp:8:46: note: candidates are: int next [2000050]
int dp[N][2],visit[M],edge_m,head[N],edge[M],next[M],dfn[N],low[N],all,ti;
^
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_32852963_4138.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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