View Compilation Error

0_0_12945645_8070.cpp: In function `int main()':
0_0_12945645_8070.cpp:35: error: `q' undeclared (first use this function)
0_0_12945645_8070.cpp:35: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12945645_8070.cpp:35: error: expected `;' before '}' token