0_0_32865881_16739.cpp: In function 'void add(int, int, int)':
0_0_32865881_16739.cpp:12:2: error: reference to 'next' is ambiguous
next[cnt][1] = v;
^
0_0_32865881_16739.cpp:8:15: note: candidates are: int next [581][3]
int head[17], next[17 * 17 * 2 + 3][3], dp[1 << 17][17], dis[1 << 17], num[1 << 17];
^
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_32865881_16739.cpp:3:
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_32865881_16739.cpp:13:2: error: reference to 'next' is ambiguous
next[cnt][2] = w;
^
0_0_32865881_16739.cpp:8:15: note: candidates are: int next [581][3]
int head[17], next[17 * 17 * 2 + 3][3], dp[1 << 17][17], dis[1 << 17], num[1 << 17];
^
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_32865881_16739.cpp:3:
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_32865881_16739.cpp:14:2: error: reference to 'next' is ambiguous
next[cnt][0] = head[u];
^
0_0_32865881_16739.cpp:8:15: note: candidates are: int next [581][3]
int head[17], next[17 * 17 * 2 + 3][3], dp[1 << 17][17], dis[1 << 17], num[1 << 17];
^
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_32865881_16739.cpp:3:
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_32865881_16739.cpp: In function 'void bfs()':
0_0_32865881_16739.cpp:28:38: error: reference to 'next' is ambiguous
for (int i = head[u]; i != -1; i = next[i][0]){
^
0_0_32865881_16739.cpp:8:15: note: candidates are: int next [581][3]
int head[17], next[17 * 17 * 2 + 3][3], dp[1 << 17][17], dis[1 << 17], num[1 << 17];
^
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_32865881_16739.cpp:3:
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_32865881_16739.cpp:29:12: error: reference to 'next' is ambiguous
int v = next[i][1];
^
0_0_32865881_16739.cpp:8:15: note: candidates are: int next [581][3]
int head[17], next[17 * 17 * 2 + 3][3], dp[1 << 17][17], dis[1 << 17], num[1 << 17];
^
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_32865881_16739.cpp:3:
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_32865881_16739.cpp:30:12: error: reference to 'next' is ambiguous
int w = next[i][2];
^
0_0_32865881_16739.cpp:8:15: note: candidates are: int next [581][3]
int head[17], next[17 * 17 * 2 + 3][3], dp[1 << 17][17], dis[1 << 17], num[1 << 17];
^
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_32865881_16739.cpp:3:
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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