0_0_33698680_11836.cpp: In function 'void init()':
0_0_33698680_11836.cpp:13:12: error: reference to 'next' is ambiguous
in[y]++; next[++tot]=head[x];
^
0_0_33698680_11836.cpp:5:19: note: candidates are: int next [510]
int n,m,head[510],next[510],in[510],s[510],ver[510];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_33698680_11836.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_33698680_11836.cpp: In function 'void topsort()':
0_0_33698680_11836.cpp:28:25: error: reference to 'next' is ambiguous
for(int i=head[x];i;i=next[i]){
^
0_0_33698680_11836.cpp:5:19: note: candidates are: int next [510]
int n,m,head[510],next[510],in[510],s[510],ver[510];
^
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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_33698680_11836.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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