0_0_13849437_22870.cpp: In function 'bool tarjan(int)':
0_0_13849437_22870.cpp:47:34: error: reference to 'next' is ambiguous
for(int i=first[node];i!=0;i=next[i])
^
0_0_13849437_22870.cpp:22:21: note: candidates are: int next [100005]
int u[maxm],v[maxm],next[maxm],first[maxn];
^
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/stl_tree.h:61,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
from 0_0_13849437_22870.cpp:1:
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_13849437_22870.cpp: In function 'void work()':
0_0_13849437_22870.cpp:71:6: error: reference to 'next' is ambiguous
next[i]=first[u[i]];
^
0_0_13849437_22870.cpp:22:21: note: candidates are: int next [100005]
int u[maxm],v[maxm],next[maxm],first[maxn];
^
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/stl_tree.h:61,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
from 0_0_13849437_22870.cpp:1:
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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