0_0_24655609_22721.cpp: In function 'void add(int, int, int)':
0_0_24655609_22721.cpp:21:14: error: reference to 'next' is ambiguous
to[++cnt]=y;next[cnt]=head[x];head[x]=cnt;val[cnt]=v;
^
0_0_24655609_22721.cpp:19:20: note: candidates are: int next [20086]
int n,m,head[maxn],next[maxm],to[maxm],val[maxm],cnt,dp[maxn][3],fa[maxn];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_24655609_22721.cpp:1:
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_24655609_22721.cpp:22:14: error: reference to 'next' is ambiguous
to[++cnt]=x;next[cnt]=head[y];head[y]=cnt;val[cnt]=v;
^
0_0_24655609_22721.cpp:19:20: note: candidates are: int next [20086]
int n,m,head[maxn],next[maxm],to[maxm],val[maxm],cnt,dp[maxn][3],fa[maxn];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_24655609_22721.cpp:1:
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_24655609_22721.cpp: In function 'void dfs(int, int)':
0_0_24655609_22721.cpp:26:25: error: reference to 'next' is ambiguous
for (int i=head[x];i;i=next[i]){
^
0_0_24655609_22721.cpp:19:20: note: candidates are: int next [20086]
int n,m,head[maxn],next[maxm],to[maxm],val[maxm],cnt,dp[maxn][3],fa[maxn];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_24655609_22721.cpp:1:
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_24655609_22721.cpp: In function 'void Dfs(int)':
0_0_24655609_22721.cpp:42:25: error: reference to 'next' is ambiguous
for (int i=head[x];i;i=next[i]){
^
0_0_24655609_22721.cpp:19:20: note: candidates are: int next [20086]
int n,m,head[maxn],next[maxm],to[maxm],val[maxm],cnt,dp[maxn][3],fa[maxn];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_24655609_22721.cpp:1:
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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