0_0_16240335_31384.cpp: In function 'void read_graph()':
0_0_16240335_31384.cpp:20:9: error: reference to 'next' is ambiguous
next[e] = first[u[e]];
^
0_0_16240335_31384.cpp:10:20: note: candidates are: int next [20005]
int n, m, first[N],next[N],u[N],v[N],w[N], d[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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_16240335_31384.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_16240335_31384.cpp:22:9: error: reference to 'next' is ambiguous
next[e+m] = first[u[e+m]];
^
0_0_16240335_31384.cpp:10:20: note: candidates are: int next [20005]
int n, m, first[N],next[N],u[N],v[N],w[N], d[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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_16240335_31384.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_16240335_31384.cpp: In function 'void SPFA(int)':
0_0_16240335_31384.cpp:37:38: error: reference to 'next' is ambiguous
for(int e=first[x]; e!=-1; e=next[e]){
^
0_0_16240335_31384.cpp:10:20: note: candidates are: int next [20005]
int n, m, first[N],next[N],u[N],v[N],w[N], d[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++/deque:60,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_16240335_31384.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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