0_0_28849168_15130.cpp: In function 'int main()':
0_0_28849168_15130.cpp:69:6: error: reference to 'next' is ambiguous
next[i]=point[val[i]],point[val[i]]=i;
^
0_0_28849168_15130.cpp:7:26: note: candidates are: int next [200003]
int n,m,cmpd,root,pre[N],next[N],point[N],ans,lastans,x,y,val[N];
^
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++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_28849168_15130.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_28849168_15130.cpp:71:48: error: reference to 'next' is ambiguous
tr[i].d[0]=i,tr[i].d[1]=pre[i],tr[i].d[2]=next[i],tr[i].val=tr[i].maxn=val[i];
^
0_0_28849168_15130.cpp:7:26: note: candidates are: int next [200003]
int n,m,cmpd,root,pre[N],next[N],point[N],ans,lastans,x,y,val[N];
^
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++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_28849168_15130.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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