0_0_18016499_23206.cpp: In function 'void add(int, int, int, int)':
0_0_18016499_23206.cpp:74:5: error: reference to 'next' is ambiguous
next[_index]=pre[u];
^
0_0_18016499_23206.cpp:62:22: note: candidates are: int next [120000]
int _index,pre[MAXV],next[MAXE];
^
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_18016499_23206.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_18016499_23206.cpp: In function 'int SPFA(int, int, int)':
0_0_18016499_23206.cpp:90:34: error: reference to 'next' is ambiguous
for(int i=pre[u];i!=-1;i=next[i])
^
0_0_18016499_23206.cpp:62:22: note: candidates are: int next [120000]
int _index,pre[MAXV],next[MAXE];
^
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_18016499_23206.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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