0_0_13748409_13345.cpp: In function 'int main()':
0_0_13748409_13345.cpp:30:9: error: reference to 'next' is ambiguous
next[i]=first[u];
^
0_0_13748409_13345.cpp:12:27: note: candidates are: int next [150000]
int d[30001],first[30001],next[150000];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:60,
from 0_0_13748409_13345.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_13748409_13345.cpp:42:31: error: reference to 'next' is ambiguous
for(i=first[u];i>=0;i=next[i])
^
0_0_13748409_13345.cpp:12:27: note: candidates are: int next [150000]
int d[30001],first[30001],next[150000];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:60,
from 0_0_13748409_13345.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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