0_0_22243662_11552.cpp: In function 'void dfs1(int)':
0_0_22243662_11552.cpp:46:24: error: reference to 'next' is ambiguous
for(int i=last[x];i;i=next[i]){
^
0_0_22243662_11552.cpp:9:13: note: candidates are: int next [200005]
int last[N],next[N],way[N],tot;
^
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_22243662_11552.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_22243662_11552.cpp: In function 'void dfs2(int, int)':
0_0_22243662_11552.cpp:59:24: error: reference to 'next' is ambiguous
for(int i=last[x];i;i=next[i]){
^
0_0_22243662_11552.cpp:9:13: note: candidates are: int next [200005]
int last[N],next[N],way[N],tot;
^
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_22243662_11552.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_22243662_11552.cpp: In function 'int main()':
0_0_22243662_11552.cpp:75:18: error: reference to 'next' is ambiguous
way[++tot]=b;next[tot]=last[a];last[a]=tot;
^
0_0_22243662_11552.cpp:9:13: note: candidates are: int next [200005]
int last[N],next[N],way[N],tot;
^
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_22243662_11552.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_22243662_11552.cpp:76:18: error: reference to 'next' is ambiguous
way[++tot]=a;next[tot]=last[b];last[b]=tot;
^
0_0_22243662_11552.cpp:9:13: note: candidates are: int next [200005]
int last[N],next[N],way[N],tot;
^
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_22243662_11552.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_22243662_11552.cpp:89:22: error: reference to 'next' is ambiguous
way[++tot]=v[i];next[tot]=last[u[i]];last[u[i]]=tot;
^
0_0_22243662_11552.cpp:9:13: note: candidates are: int next [200005]
int last[N],next[N],way[N],tot;
^
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_22243662_11552.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_22243662_11552.cpp:90:22: error: reference to 'next' is ambiguous
way[++tot]=u[i];next[tot]=last[v[i]];last[v[i]]=tot;
^
0_0_22243662_11552.cpp:9:13: note: candidates are: int next [200005]
int last[N],next[N],way[N],tot;
^
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_22243662_11552.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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