0_0_18098971_27626.cpp: In function 'void adde(int, int)':
0_0_18098971_27626.cpp:68:5: error: reference to 'next' is ambiguous
next[mt]=first[a],first[a]=mt++;
^
0_0_18098971_27626.cpp:61:14: note: candidates are: int next [100020]
int first[N],next[N<<1],tr[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++/string:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/stdexcept:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/array:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/tuple:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:55,
from 0_0_18098971_27626.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_18098971_27626.cpp:70:5: error: reference to 'next' is ambiguous
next[mt]=first[b],first[b]=mt++;
^
0_0_18098971_27626.cpp:61:14: note: candidates are: int next [100020]
int first[N],next[N<<1],tr[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++/string:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/stdexcept:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/array:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/tuple:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:55,
from 0_0_18098971_27626.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_18098971_27626.cpp: In function 'void dfs(int, int)':
0_0_18098971_27626.cpp:76:25: error: reference to 'next' is ambiguous
for(i=first[u];~i;i=next[i]){
^
0_0_18098971_27626.cpp:61:14: note: candidates are: int next [100020]
int first[N],next[N<<1],tr[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++/string:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/stdexcept:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/array:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/tuple:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:55,
from 0_0_18098971_27626.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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