0_0_34773540_25620.cpp: In function 'void add(const int&, const int&, const int&)':
0_0_34773540_25620.cpp:15:33: error: reference to 'next' is ambiguous
ver[++tot] = y, edge[tot] = w, next[tot] = head[x], head[x] = tot;
^
0_0_34773540_25620.cpp:11:40: note: candidates are: int next [80020]
int T, n, m, t, x, y, w, tot, head[N], next[2 * N], ver[2 * N], edge[2 * N], d[N], dist[N], f[N][20];
^
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_34773540_25620.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_34773540_25620.cpp: In function 'void bfs()':
0_0_34773540_25620.cpp:22:31: error: reference to 'next' is ambiguous
for(int i = head[x]; i; i = next[i]) {
^
0_0_34773540_25620.cpp:11:40: note: candidates are: int next [80020]
int T, n, m, t, x, y, w, tot, head[N], next[2 * N], ver[2 * N], edge[2 * N], d[N], dist[N], f[N][20];
^
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_34773540_25620.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_34773540_25620.cpp: In function 'int main()':
0_0_34773540_25620.cpp:51:10: error: reference to 'next' is ambiguous
memset(next, 0, sizeof next);
^
0_0_34773540_25620.cpp:11:40: note: candidates are: int next [80020]
int T, n, m, t, x, y, w, tot, head[N], next[2 * N], ver[2 * N], edge[2 * N], d[N], dist[N], f[N][20];
^
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_34773540_25620.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_34773540_25620.cpp:51:26: error: reference to 'next' is ambiguous
memset(next, 0, sizeof next);
^
0_0_34773540_25620.cpp:11:40: note: candidates are: int next [80020]
int T, n, m, t, x, y, w, tot, head[N], next[2 * N], ver[2 * N], edge[2 * N], d[N], dist[N], f[N][20];
^
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_34773540_25620.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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