0_0_25009113_320.cpp: In function 'void add(int, int)':
0_0_25009113_320.cpp:13:3: error: reference to 'next' is ambiguous
next[++now]=head[x];
^
0_0_25009113_320.cpp:9:9: note: candidates are: int next [200005]
int now,next[200005],head[200005],point[200005];
^
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_25009113_320.cpp:4:
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_25009113_320.cpp: In function 'void dfs(int, int, int)':
0_0_25009113_320.cpp:23:26: error: reference to 'next' is ambiguous
for (i=head[u];i!=-1;i=next[i])
^
0_0_25009113_320.cpp:9:9: note: candidates are: int next [200005]
int now,next[200005],head[200005],point[200005];
^
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_25009113_320.cpp:4:
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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