0_0_20010776_3124.cpp: In function 'void Add_edge(int, int)':
0_0_20010776_3124.cpp:54:2: error: reference to 'next' is ambiguous
next[++ecnt] = first[u];
^
0_0_20010776_3124.cpp:45:17: note: candidates are: int next [50010]
int first[maxn],next[50010],ver[50010],ecnt;
^
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++/vector:60,
from 0_0_20010776_3124.cpp:28:
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_20010776_3124.cpp: In function 'bool Dfs(int)':
0_0_20010776_3124.cpp:63:37: error: reference to 'next' is ambiguous
for(int i = first[p]; i != -1; i = next[i]){
^
0_0_20010776_3124.cpp:45:17: note: candidates are: int next [50010]
int first[maxn],next[50010],ver[50010],ecnt;
^
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++/vector:60,
from 0_0_20010776_3124.cpp:28:
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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