View Compilation Error

0_0_36700555_6651.cpp: In function 'int tarjan(int)':
0_0_36700555_6651.cpp:24:15: error: reference to 'count' is ambiguous
 dfn[u]=low[u]=count++;
               ^
0_0_36700555_6651.cpp:16:5: note: candidates are: int count
 int count=1,sign=0;
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/algorithm:62:0,
                 from 0_0_36700555_6651.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:3947:5: note:                 template<class _IIter, class _Tp> typename std::iterator_traits<_Iterator>::difference_type std::count(_IIter, _IIter, const _Tp&)
     count(_InputIterator __first, _InputIterator __last, const _Tp& __value)
     ^