0_0_14037317_19145.cpp: In function 'void Add(int, int)':
0_0_14037317_19145.cpp:22:14: error: reference to 'next' is ambiguous
e[tot] = v; next[tot] = g[u]; g[u] = tot ++;
^
0_0_14037317_19145.cpp:12:15: note: candidates are: int next [30001]
int e[30001], next[30001], g[30001];
^
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_14037317_19145.cpp:6:
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_14037317_19145.cpp:23:14: error: reference to 'next' is ambiguous
e[tot] = u; next[tot] = g[v]; g[v] = tot ++;
^
0_0_14037317_19145.cpp:12:15: note: candidates are: int next [30001]
int e[30001], next[30001], g[30001];
^
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_14037317_19145.cpp:6:
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_14037317_19145.cpp: In function 'll dfs(int, int)':
0_0_14037317_19145.cpp:29:28: error: reference to 'next' is ambiguous
for (int i = g[x]; i; i = next[i])
^
0_0_14037317_19145.cpp:12:15: note: candidates are: int next [30001]
int e[30001], next[30001], g[30001];
^
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_14037317_19145.cpp:6:
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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