0_0_29557821_28803.cpp: In function 'void add_edge(int, int)':
0_0_29557821_28803.cpp:47:2: error: reference to 'next' is ambiguous
next[ecnt]=first[u];first[u]=ecnt;e[ecnt++]=Edge(u,v);
^
0_0_29557821_28803.cpp:37:17: note: candidates are: int next [2000010]
int first[maxn],next[maxm],ecnt;
^
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++/vector:60,
from 0_0_29557821_28803.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_29557821_28803.cpp:48:2: error: reference to 'next' is ambiguous
next[ecnt]=first[v];first[v]=ecnt;e[ecnt++]=Edge(v,u);
^
0_0_29557821_28803.cpp:37:17: note: candidates are: int next [2000010]
int first[maxn],next[maxm],ecnt;
^
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++/vector:60,
from 0_0_29557821_28803.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_29557821_28803.cpp: In function 'void dpdfs(int, int)':
0_0_29557821_28803.cpp:56:29: error: reference to 'next' is ambiguous
for(int i=first[u];i!=-1;i=next[i])
^
0_0_29557821_28803.cpp:37:17: note: candidates are: int next [2000010]
int first[maxn],next[maxm],ecnt;
^
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++/vector:60,
from 0_0_29557821_28803.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_29557821_28803.cpp: In function 'void moveroot(int, int)':
0_0_29557821_28803.cpp:75:29: error: reference to 'next' is ambiguous
for(int i=first[u];i!=-1;i=next[i])
^
0_0_29557821_28803.cpp:37:17: note: candidates are: int next [2000010]
int first[maxn],next[maxm],ecnt;
^
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++/vector:60,
from 0_0_29557821_28803.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_29557821_28803.cpp: In function 'void DFS(int, int)':
0_0_29557821_28803.cpp:90:29: error: reference to 'next' is ambiguous
for(int i=first[u];i!=-1;i=next[i])
^
0_0_29557821_28803.cpp:37:17: note: candidates are: int next [2000010]
int first[maxn],next[maxm],ecnt;
^
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++/vector:60,
from 0_0_29557821_28803.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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