0_0_24986680_14130.cpp: In function 'void addedge(int, int, int)':
0_0_24986680_14130.cpp:28:2: error: reference to 'next' is ambiguous
next[++t]=first[s];
^
0_0_24986680_14130.cpp:24:17: note: candidates are: int next [20010]
int first[N<<1],next[M<<1],to[M<<1],d[M<<1],t;
^
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++/algorithm:61,
from 0_0_24986680_14130.cpp:3:
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_24986680_14130.cpp: In function 'int spfa()':
0_0_24986680_14130.cpp:44:34: error: reference to 'next' is ambiguous
for(int i=first[x],v=to[i];i;i=next[i],v=to[i])
^
0_0_24986680_14130.cpp:24:17: note: candidates are: int next [20010]
int first[N<<1],next[M<<1],to[M<<1],d[M<<1],t;
^
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++/algorithm:61,
from 0_0_24986680_14130.cpp:3:
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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