0_0_18804585_20741.cpp: In function 'void init()':
0_0_18804585_20741.cpp:23:12: error: reference to 'prev' is ambiguous
memset(prev,-1,sizeof(prev));
^
0_0_18804585_20741.cpp:16:5: note: candidates are: int prev [3000]
int prev[maxn],degree[maxn],_index=0;
^
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_18804585_20741.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
0_0_18804585_20741.cpp:23:27: error: reference to 'prev' is ambiguous
memset(prev,-1,sizeof(prev));
^
0_0_18804585_20741.cpp:16:5: note: candidates are: int prev [3000]
int prev[maxn],degree[maxn],_index=0;
^
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_18804585_20741.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
0_0_18804585_20741.cpp: In function 'void addedge(int, int, int)':
0_0_18804585_20741.cpp:33:20: error: reference to 'prev' is ambiguous
e[_index].next=prev[u];
^
0_0_18804585_20741.cpp:16:5: note: candidates are: int prev [3000]
int prev[maxn],degree[maxn],_index=0;
^
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_18804585_20741.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
0_0_18804585_20741.cpp:35:5: error: reference to 'prev' is ambiguous
prev[u]=_index++;
^
0_0_18804585_20741.cpp:16:5: note: candidates are: int prev [3000]
int prev[maxn],degree[maxn],_index=0;
^
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_18804585_20741.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
0_0_18804585_20741.cpp: In function 'void tarjan(int)':
0_0_18804585_20741.cpp:44:15: error: reference to 'prev' is ambiguous
for(int i=prev[u];i!=-1;i=e[i].next)
^
0_0_18804585_20741.cpp:16:5: note: candidates are: int prev [3000]
int prev[maxn],degree[maxn],_index=0;
^
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_18804585_20741.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
0_0_18804585_20741.cpp: In function 'int solve(int)':
0_0_18804585_20741.cpp:95:19: error: reference to 'prev' is ambiguous
for(int j=prev[i];j!=-1;j=e[j].next)
^
0_0_18804585_20741.cpp:16:5: note: candidates are: int prev [3000]
int prev[maxn],degree[maxn],_index=0;
^
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_18804585_20741.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
prev(_BidirectionalIterator __x, typename
^
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