0_0_13808557_19690.cpp: In function 'void addedge(int, int, int)':
0_0_13808557_19690.cpp:55:5: error: reference to 'next' is ambiguous
next[size]=pre[u];
^
0_0_13808557_19690.cpp:45:16: note: candidates are: int next [500010]
int edge[MAXM],next[MAXM]={0},pre[MAXN]={0},weight[MAXM],size=1;
^
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_13808557_19690.cpp:7:
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_13808557_19690.cpp: In function 'long long int sap(int, int)':
0_0_13808557_19690.cpp:27:38: error: reference to 'next' is ambiguous
#define Forp(x) for(int p=pre[x];p;p=next[p])
^
0_0_13808557_19690.cpp:75:5: note: in expansion of macro 'Forp'
Forp(x)
^
0_0_13808557_19690.cpp:45:16: note: candidates are: int next [500010]
int edge[MAXM],next[MAXM]={0},pre[MAXN]={0},weight[MAXM],size=1;
^
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_13808557_19690.cpp:7:
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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