View Compilation Error

0_0_25453565_11863.cpp: In function 'void update(int, int, int, int, int, int)':
0_0_25453565_11863.cpp:87:6: error: 'q' was not declared in this scope
   if(q
      ^
0_0_25453565_11863.cpp:87:6: error: expected ')' at end of input
0_0_25453565_11863.cpp:87:6: error: expected statement at end of input
0_0_25453565_11863.cpp:87:6: error: expected '}' at end of input
0_0_25453565_11863.cpp:87:6: error: expected '}' at end of input