View Compilation Error

0_0_8743008_3900.cpp: In function `int main()':
0_0_8743008_3900.cpp:41: error: `q' undeclared (first use this function)
0_0_8743008_3900.cpp:41: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8743008_3900.cpp:43: error: `ans' undeclared (first use this function)