0_0_23841413_21979.cpp: In function 'void addedge(int, int)':
0_0_23841413_21979.cpp:15:2: error: reference to 'next' is ambiguous
next[++e]=head[u];head[u]=e;vet[e]=v;
^
0_0_23841413_21979.cpp:11:56: note: candidates are: int next [200009]
int map[59][59],x[Ln],y[Ln],e,n,m,ans,head[Ln],vet[Lm],next[Lm];
^
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_23841413_21979.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_23841413_21979.cpp: In function 'bool find(int)':
0_0_23841413_21979.cpp:19:29: error: reference to 'next' is ambiguous
for (int e=head[u];e!=-1;e=next[e]){
^
0_0_23841413_21979.cpp:11:56: note: candidates are: int next [200009]
int map[59][59],x[Ln],y[Ln],e,n,m,ans,head[Ln],vet[Lm],next[Lm];
^
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_23841413_21979.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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