0_0_15419122_11607.cpp: In function 'void addedge(int, int, int, int)':
0_0_15419122_11607.cpp:27:2: error: reference to 'next' is ambiguous
next[e] = son[x], son[x] = e, st[e] = x, ed[e] = y, data[e] = z, cost[e] =
^
0_0_15419122_11607.cpp:21:5: note: candidates are: int next [51234]
int next[N], son[N], st[N], ed[N], data[N], cost[N], pre[N];
^
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_15419122_11607.cpp:4:
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_15419122_11607.cpp:29:2: error: reference to 'next' is ambiguous
next[e] = son[y], son[y] = e, st[e] = y, ed[e] = x, data[e] = 0, cost[e] =
^
0_0_15419122_11607.cpp:21:5: note: candidates are: int next [51234]
int next[N], son[N], st[N], ed[N], data[N], cost[N], pre[N];
^
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_15419122_11607.cpp:4:
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_15419122_11607.cpp: In function 'bool build()':
0_0_15419122_11607.cpp:48:31: error: reference to 'next' is ambiguous
for (int p = son[x]; p; p = next[p])
^
0_0_15419122_11607.cpp:21:5: note: candidates are: int next [51234]
int next[N], son[N], st[N], ed[N], data[N], cost[N], pre[N];
^
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_15419122_11607.cpp:4:
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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