0_0_17029836_5574.cpp: In function 'void add(int, int, int, int)':
0_0_17029836_5574.cpp:26:5: error: reference to 'next' is ambiguous
next[ind]=first[u];
^
0_0_17029836_5574.cpp:17:13: note: candidates are: int next [1000010]
int d[maxn],next[maxn],first[maxn],time[maxn],n,cnt[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_17029836_5574.cpp:1:
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_17029836_5574.cpp: In function 'bool spfa()':
0_0_17029836_5574.cpp:42:32: error: reference to 'next' is ambiguous
for(i=first[x];i!=-1;i=next[i])
^
0_0_17029836_5574.cpp:17:13: note: candidates are: int next [1000010]
int d[maxn],next[maxn],first[maxn],time[maxn],n,cnt[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_17029836_5574.cpp:1:
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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