0_0_21046647_21300.cpp: In function 'void Init()':
0_0_21046647_21300.cpp:24:9: error: reference to 'next' is ambiguous
memset(next, 0, sizeof next);
^
0_0_21046647_21300.cpp:8:22: note: candidates are: int next [100005]
int head[M], pre[M], next[M];
^
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_21046647_21300.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_21046647_21300.cpp:24:25: error: reference to 'next' is ambiguous
memset(next, 0, sizeof next);
^
0_0_21046647_21300.cpp:8:22: note: candidates are: int next [100005]
int head[M], pre[M], next[M];
^
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_21046647_21300.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_21046647_21300.cpp: In function 'void Add(int, int)':
0_0_21046647_21300.cpp:28:2: error: reference to 'next' is ambiguous
next[in] = head[out];
^
0_0_21046647_21300.cpp:8:22: note: candidates are: int next [100005]
int head[M], pre[M], next[M];
^
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_21046647_21300.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_21046647_21300.cpp: In function 'void Build(int)':
0_0_21046647_21300.cpp:36:31: error: reference to 'next' is ambiguous
for (int i = head[x]; i; i = next[i]) {
^
0_0_21046647_21300.cpp:8:22: note: candidates are: int next [100005]
int head[M], pre[M], next[M];
^
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_21046647_21300.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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