0_0_31933431_4720.cpp: In function 'void addedge(int, int)':
0_0_31933431_4720.cpp:18:5: error: reference to 'next' is ambiguous
next[e] = head[x]; head[x] = e++;
^
0_0_31933431_4720.cpp:12:20: note: candidates are: int next [300005]
int e, head[MAXN], next[MAXM], v[MAXM];
^
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++/algorithm:61,
from 0_0_31933431_4720.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_31933431_4720.cpp: In function 'void spfa()':
0_0_31933431_4720.cpp:30:44: error: reference to 'next' is ambiguous
for (int i = head[u]; i != -1; i = next[i])
^
0_0_31933431_4720.cpp:12:20: note: candidates are: int next [300005]
int e, head[MAXN], next[MAXM], v[MAXM];
^
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++/algorithm:61,
from 0_0_31933431_4720.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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