0_0_22038439_9009.cpp: In function 'void add(int, int, int)':
0_0_22038439_9009.cpp:11:2: error: reference to 'next' is ambiguous
next[++tot]=last[x]; last[x]=tot; to[tot]=y; val[tot]=z;
^
0_0_22038439_9009.cpp:9:5: note: candidates are: int next [2020050]
int next[M],to[M],val[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++/algorithm:61,
from 0_0_22038439_9009.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_22038439_9009.cpp: In function 'void spfa()':
0_0_22038439_9009.cpp:17:26: error: reference to 'next' is ambiguous
for (int i=last[k];i;i=next[i]) if (dis[to[i]]>dis[k]+val[i]) {
^
0_0_22038439_9009.cpp:9:5: note: candidates are: int next [2020050]
int next[M],to[M],val[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++/algorithm:61,
from 0_0_22038439_9009.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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