0_0_25934751_30986.cpp: In function 'void add(int, int, int)':
0_0_25934751_30986.cpp:15:26: error: reference to 'next' is ambiguous
to[edge]=v,w[edge]=c,next[edge]=head[u],head[u]=edge++;
^
0_0_25934751_30986.cpp:6:19: note: candidates are: int next [200010]
int head[N],to[N],next[N],w[N];
^
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_25934751_30986.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_25934751_30986.cpp:16:26: error: reference to 'next' is ambiguous
to[edge]=u,w[edge]=c,next[edge]=head[v],head[v]=edge++;
^
0_0_25934751_30986.cpp:6:19: note: candidates are: int next [200010]
int head[N],to[N],next[N],w[N];
^
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_25934751_30986.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_25934751_30986.cpp: In function 'void bfs(int)':
0_0_25934751_30986.cpp:28:34: error: reference to 'next' is ambiguous
for(int i=head[u]; ~i; i=next[i]){
^
0_0_25934751_30986.cpp:6:19: note: candidates are: int next [200010]
int head[N],to[N],next[N],w[N];
^
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_25934751_30986.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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