0_0_18762943_20599.cpp: In function 'void add(int, int)':
0_0_18762943_20599.cpp:22:2: error: reference to 'next' is ambiguous
next[cnt]=last[a];
^
0_0_18762943_20599.cpp:12:11: note: candidates are: int next [1000000]
int to[M],next[M],last[M],dfn[M],low[M],belong[M],instack[M],d[M],pri[M],du[M],stack[M];
^
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_18762943_20599.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_18762943_20599.cpp: In function 'void tarjan(int)':
0_0_18762943_20599.cpp:34:21: error: reference to 'next' is ambiguous
for (i=last[x];i;i=next[i])
^
0_0_18762943_20599.cpp:12:11: note: candidates are: int next [1000000]
int to[M],next[M],last[M],dfn[M],low[M],belong[M],instack[M],d[M],pri[M],du[M],stack[M];
^
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_18762943_20599.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_18762943_20599.cpp: In function 'int main()':
0_0_18762943_20599.cpp:60:25: error: reference to 'next' is ambiguous
mem(dfn) mem(low) mem(next) mem(to) mem(last) mem(belong) mem(instack) mem(du)
^
0_0_18762943_20599.cpp:10:23: note: in definition of macro 'mem'
#define mem(x) memset(x,0,sizeof(x));
^
0_0_18762943_20599.cpp:12:11: note: candidates are: int next [1000000]
int to[M],next[M],last[M],dfn[M],low[M],belong[M],instack[M],d[M],pri[M],du[M],stack[M];
^
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_18762943_20599.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_18762943_20599.cpp:60:25: error: reference to 'next' is ambiguous
mem(dfn) mem(low) mem(next) mem(to) mem(last) mem(belong) mem(instack) mem(du)
^
0_0_18762943_20599.cpp:10:34: note: in definition of macro 'mem'
#define mem(x) memset(x,0,sizeof(x));
^
0_0_18762943_20599.cpp:12:11: note: candidates are: int next [1000000]
int to[M],next[M],last[M],dfn[M],low[M],belong[M],instack[M],d[M],pri[M],du[M],stack[M];
^
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_18762943_20599.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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