0_0_13615300_29910.cpp: In function 'void dfs(int)':
0_0_13615300_29910.cpp:30:16: error: reference to 'next' is ambiguous
now=next[now];
^
0_0_13615300_29910.cpp:12:112: note: candidates are: int next [1000005]
int M1,M2,T,MAX,head[1000005],LOW[1000005],DFN[1000005],Time,R,st[1000005],i,n,o,A,B,f[1000005],g[1000005],sum,next[1000005],e[1000005];
^
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_13615300_29910.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_13615300_29910.cpp: In function 'void add(int, int, int)':
0_0_13615300_29910.cpp:43:5: error: reference to 'next' is ambiguous
next[a]=head[b];
^
0_0_13615300_29910.cpp:12:112: note: candidates are: int next [1000005]
int M1,M2,T,MAX,head[1000005],LOW[1000005],DFN[1000005],Time,R,st[1000005],i,n,o,A,B,f[1000005],g[1000005],sum,next[1000005],e[1000005];
^
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_13615300_29910.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_13615300_29910.cpp: In function 'int main()':
0_0_13615300_29910.cpp:70:45: error: reference to 'next' is ambiguous
for (i=1; i<=max(n,o); i++) head[i]=next[i]=e[i]=0; o=0;
^
0_0_13615300_29910.cpp:12:112: note: candidates are: int next [1000005]
int M1,M2,T,MAX,head[1000005],LOW[1000005],DFN[1000005],Time,R,st[1000005],i,n,o,A,B,f[1000005],g[1000005],sum,next[1000005],e[1000005];
^
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_13615300_29910.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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