0_0_14852947_23713.cpp: In function 'void add_edge(int, int)':
0_0_14852947_23713.cpp:59:2: error: reference to 'next' is ambiguous
next[++tot] = first[x]; first[x] = tot; to[tot] = y; d[y]++;
^
0_0_14852947_23713.cpp:53:5: note: candidates are: int next [200010]
int next[maxn], to[maxn], first[maxn], value[maxn];
^
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_14852947_23713.cpp:2:
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_14852947_23713.cpp: In function 'int main()':
0_0_14852947_23713.cpp:111:30: error: reference to 'next' is ambiguous
for (int i=first[x]; i; i=next[i])
^
0_0_14852947_23713.cpp:53:5: note: candidates are: int next [200010]
int next[maxn], to[maxn], first[maxn], value[maxn];
^
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_14852947_23713.cpp:2:
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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