View Compilation Error

0_0_36679406_7811.cpp: In function 'int bfs(int)':
0_0_36679406_7811.cpp:67:1: error: reference to 'queue' is ambiguous
 queue q;
 ^
0_0_36679406_7811.cpp:34:7: note: candidates are: class queue
 class queue
       ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:64:0,
                 from 0_0_36679406_7811.cpp:12:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:96:11: note:                 template<class _Tp, class _Sequence> class std::queue
     class queue
           ^
0_0_36679406_7811.cpp:69:1: error: 'q' was not declared in this scope
 q.push(1);
 ^