0_0_21384801_14375.cpp: In function 'void add(int, int)':
0_0_21384801_14375.cpp:20:5: error: reference to 'next' is ambiguous
next[dfs_cnt][1] = v;
^
0_0_21384801_14375.cpp:9:52: note: candidates are: int next [2010][2]
int n, dfs_cnt, p[1010], num[1010][2], head[1010], next[2010][2];
^
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_21384801_14375.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_21384801_14375.cpp:21:5: error: reference to 'next' is ambiguous
next[dfs_cnt][0] = head[u];
^
0_0_21384801_14375.cpp:9:52: note: candidates are: int next [2010][2]
int n, dfs_cnt, p[1010], num[1010][2], head[1010], next[2010][2];
^
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_21384801_14375.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_21384801_14375.cpp: In function 'double tarjan(int, int, int, long long int)':
0_0_21384801_14375.cpp:55:41: error: reference to 'next' is ambiguous
for(int i = head[cur]; i != -1; i = next[i][0]){
^
0_0_21384801_14375.cpp:9:52: note: candidates are: int next [2010][2]
int n, dfs_cnt, p[1010], num[1010][2], head[1010], next[2010][2];
^
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_21384801_14375.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_21384801_14375.cpp:56:17: error: reference to 'next' is ambiguous
int u = next[i][1];
^
0_0_21384801_14375.cpp:9:52: note: candidates are: int next [2010][2]
int n, dfs_cnt, p[1010], num[1010][2], head[1010], next[2010][2];
^
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_21384801_14375.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_21384801_14375.cpp: In function 'void dfs(int, int)':
0_0_21384801_14375.cpp:69:41: error: reference to 'next' is ambiguous
for(int i = head[cur]; i != -1; i = next[i][0]){
^
0_0_21384801_14375.cpp:9:52: note: candidates are: int next [2010][2]
int n, dfs_cnt, p[1010], num[1010][2], head[1010], next[2010][2];
^
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_21384801_14375.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_21384801_14375.cpp:70:17: error: reference to 'next' is ambiguous
int u = next[i][1];
^
0_0_21384801_14375.cpp:9:52: note: candidates are: int next [2010][2]
int n, dfs_cnt, p[1010], num[1010][2], head[1010], next[2010][2];
^
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_21384801_14375.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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