0_0_16231323_958.cpp: In function 'void buildgraph()':
0_0_16231323_958.cpp:27:17: error: reference to 'next' is ambiguous
edge[2*i-1]=y,next[2*i-1]=first[x],first[x]=2*i-1;
^
0_0_16231323_958.cpp:7:19: note: candidates are: int next [2400000]
int edge[2400000],next[2400000],first[240000],edgeagain[2400000],nextagain[2400000],firstagain[240000];
^
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_16231323_958.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_16231323_958.cpp:28:15: error: reference to 'next' is ambiguous
edge[2*i]=x,next[2*i]=first[y],first[y]=2*i;
^
0_0_16231323_958.cpp:7:19: note: candidates are: int next [2400000]
int edge[2400000],next[2400000],first[240000],edgeagain[2400000],nextagain[2400000],firstagain[240000];
^
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_16231323_958.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_16231323_958.cpp: In function 'void tarjan(int, int)':
0_0_16231323_958.cpp:37:29: error: reference to 'next' is ambiguous
for (int i=first[x];i!=0;i=next[i])
^
0_0_16231323_958.cpp:7:19: note: candidates are: int next [2400000]
int edge[2400000],next[2400000],first[240000],edgeagain[2400000],nextagain[2400000],firstagain[240000];
^
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_16231323_958.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_16231323_958.cpp: In function 'void buildgraphagain()':
0_0_16231323_958.cpp:63:33: error: reference to 'next' is ambiguous
for (int j=first[i];j!=0;j=next[j])
^
0_0_16231323_958.cpp:7:19: note: candidates are: int next [2400000]
int edge[2400000],next[2400000],first[240000],edgeagain[2400000],nextagain[2400000],firstagain[240000];
^
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_16231323_958.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_16231323_958.cpp: In function 'void longestlink(int)':
0_0_16231323_958.cpp:75:36: error: reference to 'next' is ambiguous
for (int i=first[g[head]];i!=0;i=next[i])
^
0_0_16231323_958.cpp:7:19: note: candidates are: int next [2400000]
int edge[2400000],next[2400000],first[240000],edgeagain[2400000],nextagain[2400000],firstagain[240000];
^
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_16231323_958.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_16231323_958.cpp:89:36: error: reference to 'next' is ambiguous
for (int i=first[g[head]];i!=0;i=next[i])
^
0_0_16231323_958.cpp:7:19: note: candidates are: int next [2400000]
int edge[2400000],next[2400000],first[240000],edgeagain[2400000],nextagain[2400000],firstagain[240000];
^
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_16231323_958.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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