0_0_25514392_9611.cpp: In function 'void add_edge(int, int)':
0_0_25514392_9611.cpp:28:5: error: reference to 'next' is ambiguous
next[++tot]=head[u];head[u]=tot;e[tot]=v;
^
0_0_25514392_9611.cpp:9:18: note: candidates are: int next [500005]
int head[100005],next[500005],tot,pre[100005],du[100005],p[500005],sz,pos[500005];
^
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_25514392_9611.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_25514392_9611.cpp: In function 'void fleury(int)':
0_0_25514392_9611.cpp:38:31: error: reference to 'next' is ambiguous
for(int i=head[u];i!=-1;i=next[i])
^
0_0_25514392_9611.cpp:9:18: note: candidates are: int next [500005]
int head[100005],next[500005],tot,pre[100005],du[100005],p[500005],sz,pos[500005];
^
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_25514392_9611.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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