View Compilation Error

0_0_13752539_5794.cpp: In function 'int main()':
0_0_13752539_5794.cpp:30:15: error: request for member 'in' in 'q', which is of non-class type 'int'
             q.in();
               ^
0_0_13752539_5794.cpp:35:15: error: request for member 'in' in 'q', which is of non-class type 'int'
             q.in();
               ^