0_0_13817603_29273.cpp: In function 'void AddEdge(int, int, int)':
0_0_13817603_29273.cpp:22:2: error: reference to 'next' is ambiguous
next[c] = head[s];
^
0_0_13817603_29273.cpp:13:26: note: candidates are: int next [200200]
int head[N], to[N << 1], next[N << 1];
^
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_13817603_29273.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_13817603_29273.cpp: In function 'LL BFS(int)':
0_0_13817603_29273.cpp:33:34: error: reference to 'next' is ambiguous
for (int i = head[cur]; i; i = next[i]) {
^
0_0_13817603_29273.cpp:13:26: note: candidates are: int next [200200]
int head[N], to[N << 1], next[N << 1];
^
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_13817603_29273.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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