0_0_30140125_19812.cpp: In function 'void insert(int, int)':
0_0_30140125_19812.cpp:18:5: error: reference to 'next' is ambiguous
next[cnt]=head[a];
^
0_0_30140125_19812.cpp:9:5: note: candidates are: int next [1000005]
int next[N];//与第i条边同起点的下一条边的位置
^
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_30140125_19812.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_30140125_19812.cpp: In function 'int check(int, int)':
0_0_30140125_19812.cpp:26:32: error: reference to 'next' is ambiguous
for(int i=head[st];i!=-1;i=next[i])
^
0_0_30140125_19812.cpp:9:5: note: candidates are: int next [1000005]
int next[N];//与第i条边同起点的下一条边的位置
^
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_30140125_19812.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_30140125_19812.cpp: In function 'int main()':
0_0_30140125_19812.cpp:40:16: error: reference to 'next' is ambiguous
memset(next,-1,sizeof(next));
^
0_0_30140125_19812.cpp:9:5: note: candidates are: int next [1000005]
int next[N];//与第i条边同起点的下一条边的位置
^
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_30140125_19812.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_30140125_19812.cpp:40:31: error: reference to 'next' is ambiguous
memset(next,-1,sizeof(next));
^
0_0_30140125_19812.cpp:9:5: note: candidates are: int next [1000005]
int next[N];//与第i条边同起点的下一条边的位置
^
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_30140125_19812.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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